81 results on '"Phichai Youplao"'
Search Results
52. Plasmonic op-amp circuit model using the inline successive microring pumping technique
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K. Chaiwong, N. Sarapat, Jalil Ali, Muhammad Safwan Abd Aziz, I. S. Amiri, Ghanshyam Singh, Surasak Chiangga, Preecha P. Yupapin, N. Porsuwancharoen, Muhammad Arif Jalil, Phichai Youplao, and Kenneth T. V. Grattan
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Physics ,business.industry ,Optical power ,Port (circuit theory) ,02 engineering and technology ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,Electronic, Optical and Magnetic Materials ,law.invention ,Resonator ,020210 optoelectronics & photonics ,Hardware and Architecture ,law ,0202 electrical engineering, electronic engineering, information engineering ,Saturation (graph theory) ,Operational amplifier ,Optoelectronics ,Electrical and Electronic Engineering ,Whispering-gallery wave ,Connection (algebraic framework) ,0210 nano-technology ,business ,Electronic circuit - Abstract
The electro-optic power pumping system model using the inline successive technique within the modified add-drop filter is proposed. A pumping system consists of a closed loop Panda ring resonator, from which the optical power is coupled inline into the system. By controlling the two side phase modulators, the whispering gallery mode (WGM) is generated by the amplitude-squeezed light within the modified add-drop filter. By using the proposed circuits, the low current can be applied into the system via a gold layer connection, from which the amplified output current can be obtained at the throughput port, which can be functioned as the electronic operational amplifier (op-amp). In application, the WGM output is the amplified signal that can be used for the up (down) link in free space communication network called light fidelity (LiFi). The electro-optic signals conversion can be performed by the stacked layers of silicon–graphene–gold materials. The results obtained have shown that large gain is obtained at the WGM output, which is ~ 5 × $$10^{ - 6}\; {\text{cm}}^{2} \;({\text{V}}\;{\text{sW}})^{ - 1}$$ , when the pumping saturation time is ~ 2 fs. It concludes the suitability of our proposed model for light fidelity, LiFi up-down link conversion.
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- 2018
53. A novel plasmonic interferometry and the potential applications
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Preecha P. Yupapin, Nithiroth Pornsuwancharoen, Surasak Chiangga, I. S. Amiri, J. Jaglan, Phichai Youplao, J. Ali, and Muhammad Safwan Abd Aziz
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Physics ,Electron mobility ,business.industry ,Surface plasmon ,General Physics and Astronomy ,Michelson interferometer ,Physics::Optics ,02 engineering and technology ,021001 nanoscience & nanotechnology ,lcsh:QC1-999 ,law.invention ,Interferometry ,Wavelength ,020210 optoelectronics & photonics ,Optics ,law ,0202 electrical engineering, electronic engineering, information engineering ,Light beam ,0210 nano-technology ,business ,Plasmon ,Computer Science::Databases ,lcsh:Physics ,Coherence (physics) - Abstract
In this article, we have proposed the plasmonic interferometry concept and analytical details given. By using the conventional optical interferometry, which can be simply calculated by using the relationship between the electric field and electron mobility, the interference mobility visibility (fringe visibility) can be observed. The surface plasmons in the sensing arm of the Michelson interferometer is constructed by the stacked layers of the silicon-graphene-gold, allows to characterize the spatial resolution of light beams in terms of the electron mobility down to 100-nm scales, with measured coherence lengths as low as ∼100 nm for an incident wavelength of 1550 nm. We have demonstrated a compact plasmonic interferometer that can apply to the electron mean free paths measurement, from which the precise determination can be used for the high-resolution mean free path measurement and sensing applications. This system provides the practical simulation device parameters that can be fabricated and tested by the experimental platform.
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- 2018
54. Characteristics of microring circuit using plasmonic island driven electron mobility
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Ghanshyam Singh, Jalil Ali, Phichai Youplao, I. S. Amiri, Preecha P. Yupapin, Nithiroth Pornsuwancharoen, Suphanchai Punthawanunt, and M. A. Aziz
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Electron mobility ,Materials science ,Phase (waves) ,Physics::Optics ,02 engineering and technology ,01 natural sciences ,010309 optics ,Switching time ,Resonator ,0103 physical sciences ,Electronics ,Electrical and Electronic Engineering ,Computer Science::Databases ,Plasmon ,business.industry ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,Electronic, Optical and Magnetic Materials ,Hardware and Architecture ,visual_art ,Electronic component ,visual_art.visual_art_medium ,Group velocity ,Optoelectronics ,0210 nano-technology ,business - Abstract
The plasmonic electronic component consists of the stacked layers of silicon–graphene–gold materials can be integrated with the driven group velocity system, which is nonlinear microring resonator. This determines the suitable driven velocity in controlling the side ring phase modulators. In such a case, the proposed system can give the advantage of the greater switching speed and the hybrid function between electronic and light signals. The obtained I–V output characteristics of the transmitted results have shown that the proposed circuit can function to be the electronic devices with very high stability.
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- 2018
55. An integrated microring circuit design for optoelectronic transformer applications
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Ghanshyam Singh, K. Chaiwong, Kenneth T. V. Grattan, Preecha P. Yupapin, Jalil Ali, Surasak Chiangga, Nithiroth Pornsuwancharoen, Suphanchai Punthawanunt, Phichai Youplao, and Iraj Sadegh Amiri
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010302 applied physics ,Materials science ,business.industry ,TK ,Circuit design ,Down conversion ,General Physics and Astronomy ,Linearity ,02 engineering and technology ,021001 nanoscience & nanotechnology ,01 natural sciences ,lcsh:QC1-999 ,law.invention ,Resonator ,Wavelength ,Light source ,law ,0103 physical sciences ,Optoelectronics ,Monochromatic color ,0210 nano-technology ,Transformer ,business ,lcsh:Physics - Abstract
The on-chip scale circuit of the optoelectronic transformer is designed and manipulated using the microring resonator system. By using the monochromatic input light source, the electro-optic signals can be generated and functioned as the step up and down conversion by mean of the on-chip optoelectronic transformer. The step up and down of the electro-optic related power conversions can be obtained via the input and drop port connections. The results obtained have shown that the flexible up and down electro-optic conversion ratios of 1: 5 and 10:1 for the step up and down conversions, respectively. The uses light source wavelength source was centered at 800 nm, where the conversion stability of 1600 fs is noted. The linearity trend of the conversion stability is confirmed.
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- 2018
56. Multi-optical carrier generation using a microring resonator to enhance the number of serviceable channels in radio over free space optic
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Preecha P. Yupapin, Suphanchai Punthawanunt, Phichai Youplao, S. E. Alavi, and Iraj Sadegh Amiri
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Physics ,Orthogonal frequency-division multiplexing ,business.industry ,Optical communication ,Physics::Optics ,02 engineering and technology ,Condensed Matter Physics ,Multiplexing ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,Frequency divider ,Resonator ,020210 optoelectronics & photonics ,Optical Carrier transmission rates ,Wavelength-division multiplexing ,0202 electrical engineering, electronic engineering, information engineering ,Optoelectronics ,Electrical and Electronic Engineering ,business ,Free spectral range ,Computer Science::Information Theory - Abstract
A system of radio over free space optic (RoFSO) system using the multi-optical carriers has been generated by the microring resonators integrating an add/drop filter. These obtained carriers have shown sufficiently stable for propagating in free space channels while experiencing very low dispersion. Moreover, this technique is appropriated for higher capacity that can be serviced in a system of wavelength-division multiplexing (WDM) RoFSO, where there are 16 carriers created, where each carrier has 12.5 GHz free spectral range (FSR) and 220 MHz full-width at half-maximum (FWHM) and 8 orthogonal frequency division multiplex (OFDM) signals, then they separately modulated with 8 out of these 16 carriers. After the modulation, by utilizing an free space optic (FSO) antenna, all carriers have the optical multiplexing and transmission to a FSO channel. On the receiver side, the demultiplexing is performed and finally the performance of the system subsequently is analyzed by calculation of the constellation diagram and error vector magnitude (EVM).
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- 2017
57. Broadband photon squeezing control using microring embedded gold grating for LiFi-quantum link
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Suphanchai Punthawanunt, Nithiroth Pornsuwancharoen, J. Ali, Iraj Sadegh Amiri, Phichai Youplao, K. Chaiwong, and Preecha P. Yupapin
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Physics ,Photon ,Kerr effect ,business.industry ,General Chemical Engineering ,General Engineering ,Physics::Optics ,General Physics and Astronomy ,Reflector (antenna) ,Grating ,Wavelength ,Resonator ,Optics ,Single-photon source ,Node (physics) ,General Earth and Planetary Sciences ,General Materials Science ,business ,General Environmental Science - Abstract
A broadband wavelength photon squeezing system using a Panda-ring resonator embedded a gold grating is proposed. The selected laser source is input into the system via an input port, from which the nonlinear Kerr effect induced by the two nonlinear side rings and coupled into the center ring. Besides, the wavelength scattering is affected by the gold grating and the photon output wavelengths. By adjusting the suitable two side ring radii, where there is four type squeezing photons obtained. The obtained wavelengths are ranged from 1.30 to 170 µm with the center wavelength of 1.55 µm, where the maximum input power is 50 mW. From which the optimum spectrum range (FSR) of 22 nm is achieved. In applications, the up and downlink LiFi transmission can be formed using the whispering gallery mode node, in which the squeezed photons and the add port output can be used to form the communication. The signal modulation and demodulation can be applied via the device add and other ports, while the cable transmission is also available via the through the port connection. By using the Ti $${\text{O}}_{2}$$ reflector, the transmitted photons at the add port can also be controlled an attenuated, which can be used for single photon source and communication.
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- 2019
58. Frontier concept of rabi chip for intelligent humanoid
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Phichai Youplao, I. S. Amiri, J. Ali, N Ponsuwancharoen, and Preecha P. Yupapin
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Condensed Matter::Quantum Gases ,Physics ,Dipole ,Coupling (physics) ,Rabi cycle ,Oscillation ,Tweezers ,Polariton ,Atomic physics ,Rabi frequency ,Humanoid robot - Abstract
The sequence of the human brain can be configured by the originated strongly coupling fields to a pair of the ionic substances(bio-cells) within the microtubules. From which the dipole oscillation begins and transports by the strong trapped force, which is known as a tweezer. The tweezers are the trapped polaritons, which are the electrical charges with information. They will be collected on the brain surface and transport via the liquid core guide wave, which is the mixture of blood content and water. The oscillation frequency is called the Rabi frequency, is formed by the two-level atom system. Our aim will manipulate the Rabi oscillation by an on-chip device, where the quantum outputs may help to form the realistic human brain function for humanoid robotic applications.
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- 2018
59. Human-like stereo sensors using plasmonic antenna embedded MZI with space–time modulation control [Invited]
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P. P. Yupapin, Anita Garhwal, Iraj Sadegh Amiri, Kanad Ray, Phichai Youplao, and A. E. Arumona
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Physics ,business.industry ,Physics::Optics ,Signal ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,Power (physics) ,Interferometry ,Optics ,Modulation ,Electrical and Electronic Engineering ,Whispering-gallery wave ,Antenna (radio) ,business ,Quantum ,Plasmon - Abstract
A micro stereo sensor system is proposed for human sensors, where eyes, ears, tongue, nose, body, and brain are applied by six panda rings embedded in a Mach–Zehnder interferometer (MZI). The input power is applied to the upper branch of MZI and propagates within the system. The six antennas (sensors) are formed by the whispering gallery modes of the panda rings. The space–time modulation signal is applied to the MZI lower branch. The modulated stereo signals can be configured as the plasmon (electron) spin orientations, which can be identified and applied for quantum codes and quantum consciousness.
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- 2021
60. Correction to: Double Vision Model Using Space-Time Function Control within Silicon Microring System
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Phichai Youplao, Nithiroth Pornsuwancharoen, P. P. Yupapin, M. Bunruangses, and Iraj Sadegh Amiri
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Materials science ,Silicon ,chemistry ,Section (archaeology) ,Space time ,Control (management) ,chemistry.chemical_element ,Mechanical engineering ,Mistake ,Function (mathematics) ,Electronic, Optical and Magnetic Materials - Abstract
The original version of this article unfortunately contained a mistake in the “Acknowledgments” section.
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- 2020
61. Correction to: Electron Cloud Density Generated by Microring-Embedded Nano-Grating System
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Ghanshyam Singh, Phichai Youplao, Suphanchai Punthawanunt, Nithiroth Pornsuwancharoen, Iraj Sadegh Amiri, M. Bunruangses, and P. P. Yupapin
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Physics ,Optics ,Atomic orbital ,Section (archaeology) ,business.industry ,Biophysics ,Mistake ,business ,Biochemistry ,Nano grating ,Biotechnology - Abstract
The original version of this article unfortunately contained a mistake in the “Acknowledgement” section.
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- 2020
62. Correction to 'Microring Distributed Sensors Using Space-Time Function Control' [Jan 20 799-805]
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Phichai Youplao, Preecha P. Yupapin, Nithiroth Pornsuwancharoen, Iraj Sadegh Amiri, Suphanchai Punthawanunt, Ghanshyam Singh, and M. Bunruangses
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Computer science ,media_common.quotation_subject ,Space time ,010401 analytical chemistry ,Control (management) ,01 natural sciences ,0104 chemical sciences ,Section (archaeology) ,Calculus ,Electrical and Electronic Engineering ,Paragraph ,Function (engineering) ,Instrumentation ,media_common - Abstract
Unfortunately, we had mistaken some necessary sentences within the first paragraph in the footnote section and the acknowledgment section of the above article [1] , which are required from the first author’s affiliation so that the research project can attain the research grant support. The correct sentences within the two sections are given here.
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- 2020
63. Nano-capacitor-like model using light trapping in plasmonic island embedded microring system
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Kenneth T. V. Grattan, Muhammad Safwan Abd Aziz, Phichai Youplao, Jalil Ali, Preecha P. Yupapin, Ghanshyam Singh, I. S. Amiri, Nithiroth Pornsuwancharoen, Muhammad Arif Jalil, Surasak Chiangga, and Suphanchai Punthawanunt
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Electron mobility ,Materials science ,business.industry ,General Physics and Astronomy ,02 engineering and technology ,Trapping ,021001 nanoscience & nanotechnology ,01 natural sciences ,lcsh:QC1-999 ,law.invention ,010309 optics ,Capacitor ,law ,0103 physical sciences ,Nano ,Optoelectronics ,Monochromatic color ,0210 nano-technology ,business ,Saturation (magnetic) ,Plasmon ,lcsh:Physics ,QC - Abstract
We have proposed the convincing electro-optic circuit for long life-time electron mobility emission. Light a monochromatic source is utilized as input into the circuit via the input port and trapped within the plasmonic island. It is a formed-like capacitor structure formed by the silicon-graphene-gold materials which are stacked layers. All circuit port ends have added the TiO2 to form the reflectors. By selecting the suitable parameters, the fraction of the output power emission can be controlled at the add port, from which it can be successively pumping and trapped(stored) within the plasmonic island. The system energy saturation can be released by squeezing light behavior, therefore, the system is always balanced due to the successive pumping process. The results obtained of the single cell(circuit) have shown that the charging time and discharging times of the nano-capacitor-like of ∼2 to 3 s and 1000 h are achieved. This can be applied to long life mobility emission(discharge) of the capacity-like device. The mobility storage time within the island is 14,000 h, with the electron mobility of ∼3.0 × 10−7 cm2 Vs−1 is obtained.
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- 2018
64. Microring stereo sensor model using Kerr–Vernier effect for bio-cell sensor and communication
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Nithiroth Pornsuwancharoen, Kenneth T. V. Grattan, Ghanshyam Singh, Preecha P. Yupapin, Phichai Youplao, I. S. Amiri, Muhammad Safwan Abd Aziz, Muhammad Arif Jalil, and Jalil Ali
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Phase difference ,Physics ,Computer Networks and Communications ,business.industry ,Applied Mathematics ,TK ,02 engineering and technology ,Sensor model ,021001 nanoscience & nanotechnology ,01 natural sciences ,010309 optics ,Crosstalk ,Resonator ,Wavelength ,Optics ,0103 physical sciences ,Drop (telecommunication) ,Electrical and Electronic Engineering ,Vernier effect ,0210 nano-technology ,business ,Communication channel - Abstract
In this paper, a micro-stereo sensor is proposed using two-identical Panda-ring resonators, which are coupled by jointed drop ports. When light from the identical coherent sources is fed into the system via the input ports, the coupling outputs are obtained at the drop port at the resonant condition. These are mixed signals in the form of stereo signals. By using different input power between the right and left systems, the phase difference generated by the Kerr-Effect in the non-linear medium leads to the shift in the coupling outputs. The shift in the center wavelength is the primary measurement of interest along with coupling crosstalk signals that are also visible at the output. The measurement self-calibration of the two channels is confirmed by the mixed channel signals. In the manipulation, the crosstalk signals can be used to interpret the cross-communication of bio-cells. The crosstalk results have shown the optical crosstalks of ∼2.0 and ∼2.5 dB are calculated and obtained, respectively. The stereo sensor sensitivity of ∼5.70 nmW−1is noted.
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- 2018
65. Naked-eye 3D imaging employing a modified MIMO micro-ring conjugate mirrors
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V. N. Thieu, Phichai Youplao, Nithiroth Pornsuwancharoen, Preecha P. Yupapin, and I. S. Amiri
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Pixel ,business.industry ,Computer science ,Optical link ,MIMO ,Convolution ,symbols.namesake ,Optics ,Fourier transform ,Transmission (telecommunications) ,Computer Science::Computer Vision and Pattern Recognition ,symbols ,business ,Volume (compression) ,Conjugate - Abstract
In this work, the use of a micro-conjugate mirror that can produce the 3D image incident probe and display is proposed. By using the proposed system together with the concept of naked-eye 3D imaging, a pixel and a large volume pixel of a 3D image can be created and displayed as naked-eye perception, which is valuable for the large volume naked-eye 3D imaging applications. In operation, a naked-eye 3D image that has a large pixel volume will be constructed by using the MIMO micro-ring conjugate mirror system. Thereafter, these 3D images, formed by the first micro-ring conjugate mirror system, can be transmitted through an optical link to a short distance away and reconstructed via the recovery conjugate mirror at the other end of the transmission. The image transmission is performed by the Fourier integral in MATLAB and compares to the Opti-wave program results. The Fourier convolution is also included for the large volume image transmission. The simulation is used for the manipulation, where the array of a micro-conjugate mirror system is designed and simulated for the MIMO system. The naked-eye 3D imaging is confirmed by the concept of the conjugate mirror in both the input and output images, in terms of the four-wave mixing (FWM), which is discussed and interpreted.
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- 2018
66. A design multifunctional plasmonic optical device by micro ring system
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J. Ali, P. P. Yupapin, Nithiroth Pornsuwancharoen, Phichai Youplao, and I. S. Amiri
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Fabrication ,Materials science ,business.industry ,Amplifier ,Physics::Optics ,law.invention ,Rectifier ,Resonator ,law ,Filter (video) ,Optoelectronics ,Electronics ,business ,Waveguide ,Plasmon - Abstract
A multi-function electronic device based on the plasmonic circuit is designed and simulated by using the micro-ring system. From which a nonlinear micro-ring resonator is employed and the selected electronic devices such as rectifier, amplifier, regulator and filter are investigated. A system consists of a nonlinear micro-ring resonator, which is known as a modified add-drop filter and made of an InGaAsP/InP material. The stacked waveguide of an InGaAsP/InP - graphene -gold/silver is formed as a part of the device, the required output signals are formed by the specific control of input signals via the input and add ports. The material and device aspects are reviewed. The simulation results are obtained using the Opti-wave and MATLAB software programs, all device parameters are based on the fabrication technology capability.
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- 2018
67. In-situ 3D Micro-sensor Model using Embedded Plasmonic Island for Biosensors
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Jalil Ali, Muhammad Safwan Abd Aziz, Nithiroth Pornsuwancharoen, I. S. Amiri, Phichai Youplao, Suphanchai Punthawanunt, Kenneth T. V. Grattan, and Preecha P. Yupapin
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010302 applied physics ,Electron mobility ,Materials science ,Silicon ,business.industry ,Phase (waves) ,chemistry.chemical_element ,02 engineering and technology ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,01 natural sciences ,Electronic, Optical and Magnetic Materials ,Light intensity ,chemistry ,Hardware and Architecture ,0103 physical sciences ,Optoelectronics ,Transient (oscillation) ,Electrical and Electronic Engineering ,0210 nano-technology ,business ,Biosensor ,Intensity (heat transfer) ,Plasmon - Abstract
The design of the microsensor system for biosensors using the plasmonic island is proposed. The sensor head is formed by the stacked layers of silicon-graphene-gold materials. The dual-mode operations of the sensor can be performed using the relationship of the changes between the electron mobility and optical phase, where the exciting environment can be light intensity (phase), electrical transient, heat, pressure, flavour and smoke, The change in light phase (intensity) in silicon and conductivity (mobility) in gold layers cause change in the output measurands. The design and simulation interpretation of the sensor is presented. The sensor manipulation using the MCM arrangement is simulated and interpreted for biosensor applications 3D imaging can also be applied to the MCM function, where the 3D in situ sensor function is possible. The sensor sensitivity of 2.0 × 10−21 cm2 V−1 s−1 (mW)−1 via simulation is obtained.
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- 2018
68. Multi-Wavelength Bits Generation by Mesh Ring Resonator System for Optical Communication Security Application
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Preecha P. Yupapin, Nithiroth Pornsuwancharoen, and Phichai Youplao
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Engineering ,Ring (mathematics) ,business.industry ,Acoustics ,General Engineering ,Chaotic ,Optical communication ,Nonlinear system ,Resonator ,Packet switching ,Electronic engineering ,business ,Intensity (heat transfer) ,Coupling coefficient of resonators - Abstract
We propose a new design of the mesh ring resonator system device using the nonlinear behaviors of optical pulse propagation in the ring resonator system, where the disadvantages of nonlinearity of light pulses propagating in the propose system becomes beneficial. The simulation results obtained have shown the chaotic output signals that can be generated by Kerr effects in the ring resonator system, where the bits logic decision signals can be controlled by using the specify system parameters, the ring radii, the coupling coefficient and the threshold outputs intensity, of the proposed simulation system. The potential of using such the mesh ring resonator system device for optical communication security application is performed and discussed.
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- 2014
69. Microring Circulator Embedded Plasmonic Island for Multi-probe Bio-cell Sensors
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N. Pornsuwanchaoren, Phichai Youplao, Preecha P. Yupapin, J. Ali, K. Chaiwong, and Iraj Sadegh Amiri
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Physics ,business.industry ,Circulator ,Optoelectronics ,business ,Plasmon - Abstract
Three different wavelength light sources are coupled to microring circulator via modified add-drop multiplexers, from which the multiplexed signals of them can be formed at the plasmonic islands and used as the distributed sensor nodes. The change in the wavelength due to the external environment will affect the refractive index of the sensing material and hence shift in each wavelength will be seen. Measurements are recorded as the shift in a spectrum (Δλ) by changing the input power and a relationship is obtained between the change in input power and shift in the output spectrum for 1.10, 1.30 and 1.55 μm wavelengths. This is the micro-scale device that can be used for bio-cell content distributed sensors, in which the three different aspects of sensor mechanism can be employed.
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- 2019
70. Impact Response Measurement of a Plastic Container Using a Spherical-body Drop-tester
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Akihiro Takita, Shogo Saito, Jakrapong Kaewkhao, Keerati Kirdsiri, Phichai Youplao, Yusaku Fujii, and Nithiroth Pornsuwancharoen
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Reproducibility ,Materials science ,business.industry ,Drop (liquid) ,Structural engineering ,Mechanics ,Impact test ,Collision ,symbols.namesake ,symbols ,Spherical body ,Levitation ,business ,Doppler effect - Abstract
In present work, the impact test between a spherical body and a plastic container using the adapted Levitation Mass Method (LMM) has been carried out for investigating the dynamic behaviors of clear plastic container on the collision of a spherical body. The precise value of time-varying parameters were investigated by using simple Doppler effect occurred between the slightly different of beat frequency and rest frequency. The five experiments are carried out with our proposed method, it was confirmed to have good reproducibility.
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- 2016
71. Privacy Amplification of QKD Protocol in a Quantum Router
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Preecha P. Yupapin, Phichai Youplao, S. Mitatha, and S. Chaiyasoonthorn
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Physics ,Wavelength router ,Dark soliton ,Quantum network ,QKD ,TheoryofComputation_GENERAL ,Data_CODINGANDINFORMATIONTHEORY ,General Medicine ,Quantum capacity ,Quantum channel ,Quantum key distribution ,Quantum cryptography ,Quantum error correction ,Electronic engineering ,Quantum protocol ,Quantum information ,Amplitude damping channel ,Engineering(all) ,Computer Science::Cryptography and Security - Abstract
We propose a new system of quantum cryptography for QKD protocol with privacy amplification for internet security using Gaussian pulse propagating within a nonlinear ring resonator system, quantum processor and a wavelength router. To increase the channel capacity and security, the multiplexer is operated incorporating a quantum processing unit via an optical multiplexer. The transmission part can be used to generate the high capacity quantum codes within the series of micro ring resonators and an add/drop filter. The receiver part can be communicated by using the quantum key (quantum bit, qubit) via a wavelength router and quantum processors. The reference states can be recognized by using the cloning unit, which is operated by the add/drop filter, where the communication between Alice and Bob can be performed. Results obtained have shown that the correlated photons can be generated and formed the entangled photon pair, which is allowed to form the secret key between Alice and Bob. In application, the embedded system within the computer processing unit is available for quantum computer.
- Published
- 2012
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72. New WDM bands using a Gaussian pulse within a nano-waveguide
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Phichai Youplao, Nithiroth Pornsuwancharoen, Preecha P. Yupapin, and S. Mitatha
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Physics ,Pulse (signal processing) ,business.industry ,Gaussian ,Optical communication ,Physics::Optics ,Laser ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,law.invention ,symbols.namesake ,Wavelength ,Resonator ,Nonlinear system ,Optics ,law ,Wavelength-division multiplexing ,symbols ,Optoelectronics ,Electrical and Electronic Engineering ,business ,Computer Science::Databases - Abstract
The new optical communication bandwidths (wavelength bands) using a Gaussian pulse propagating within a nonlinear microring resonator system is proposed. The Gaussian input pulses, for instance, when the input pulses of the common lasers with center wavelengths from 400 to 1500 nm are used, the required output wavelength bands can be obtained by controlling the coupling coefficients of the add/drop filter. Results obtained have shown that more available wavelength bands from the different center wavelengths can be generated, which can be used to form new dense wavelength division multiplexing bands. The novelty of the work is that the expansion of communication bands, especially, when the center wavelength is at 1300 nm can be obtained by using a common laser pulse, whereas the amplified and non-dispersive light source can be formed.
- Published
- 2011
73. Novel Multi Optical Trapping Tool Generation within Add/Drop Filter System Controlled by Light
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Phichai Youplao, Preecha P. Yupapin, and Somsak Mitatha
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Materials science ,Optical trapping tool ,business.industry ,Drop (liquid) ,Soliton (optics) ,General Medicine ,Signal ,Multiplexing ,Atom trapping tool ,Wavelength ,Optics ,Optical tweezers ,Tweezers ,business ,Optical filter ,Engineering(all) - Abstract
We propose a novel system of multi optical trapping tool using a bright soliton pulses propagating within the add/drop optical filter system. The multiplexing signals with different wavelengths of the bright solition are controlled and amplified within the system. The dynamic behavior of bright soliton interaction is analyzed and described. The signal is controlled and tuned to be an optical probe which can be configured as the multi optical tweezers. By using some suitable parameters, we found that the tweezers widths in add/drop at the drop ports are about 18 nm is achieved. Therefore, the generated multi optical tweezers can be amplified within the design system. In application, the optical tweezers train can be trapped light/atom, which can be transmitted and recovered by using the proposed system.
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- 2011
74. Multi-wavelength generation of an extremely narrow pulse using a ring resonator system for bio-cells microscopy
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Nithiroth Pornsuwancharoen, N. Sangwara, Phichai Youplao, and Preecha P. Yupapin
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Physics ,medicine.diagnostic_test ,business.industry ,Nonlinear optics ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,Pulse (physics) ,Resonator ,Wavelength ,Optics ,Spectral width ,medicine ,Electrical and Electronic Engineering ,Optical tomography ,business ,Ultrashort pulse ,Bandwidth-limited pulse - Abstract
We propose a new system of an extremely narrow light pulse generation for optical microscopy applications using a nonlinear ring resonator system. The system consists of one nano and three micro-optical ring resonators, which can be used to generate the 50 fm (10 −15 m) optical spectral width at the broad wavelength spectrum. By using a soliton pulse with a pulse width of 50 ps, peak power of 1 W, center wavelength at 550 nm, and after the soliton pulse is launched into the first ring device, the chaotic pulses are generated within the first ring. The chaotic filtering behaviors are performed by using the second and the third ring devices, whereas the extremely short pulse, i.e. narrow spectral width, can be generated by using the extended nano-ring device. The broad spectrum of the harmonic waves is generated and filtered, which is of use in optical tomography. Results obtained have shown that the generation of the broad spectrum of short pulse with width 100 fm and peak power 60 mW is achieved. The possibility of using such a system for nondestructive bio-cells microscopy, for visualizing bio-cells and for bio-cells tomography is also discussed in detail.
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- 2010
75. One and two spin$-1/2$ particles systems under Lorentz transformations
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Hooman Moradpour, Preecha Promphan Yupapin, A. Ghasemi, Phichai Youplao, and Mahdi Bahadoran
- Subjects
Physics ,Particle system ,Quantum Physics ,Multidisciplinary ,Inertial frame of reference ,Lorentz transformation ,FOS: Physical sciences ,State (functional analysis) ,01 natural sciences ,010305 fluids & plasmas ,symbols.namesake ,Theoretical physics ,Quantum nonlocality ,Operator (computer programming) ,Pauli exclusion principle ,0103 physical sciences ,symbols ,Condensed Matter::Strongly Correlated Electrons ,Quantum Physics (quant-ph) ,lcsh:Science (General) ,010306 general physics ,Spin (physics) ,lcsh:Q1-390 - Abstract
Lorentz transformation (LT) is used to connect two inertia frames, including the lab and moving frames, and the effect of LT on the states of one spin-1/2 particle system is studied. Moreover, we address the predictions made by Czachor's and the Pauli spin operators about the spin behavior and compare our results with the behavior of system's state under Lorentz transformation. This investigation shows that the predictions made by considering the Pauli spin operator about the spin of system are in better agreement with the system's state in comparison with that of made by considering Czachor's spin operator. In continue, we focus on two-particle pure entangled systems including two spin$-1/2$ particles which moves away from each other. Once again, the behavior of this system's states under Lorentz transformation are investigated. We also point to the behavior of Bell's inequality, as a witness for non-locality, under Lorentz transformation. Our study shows that the Bell operator made by the Pauli operator has better consistency with the behavior of spin state of system under Lorentz transformation compared with the Bell operator made by Czachor's operator. Our approach can be used to study the relation between the various spin operators and the effect of LT on system, which provides the basement to predict the outcome of a Stern-Gerlach type experiment in the relativistic situations., The text have been revised and one figure was added
- Published
- 2015
76. Approaching to Genuine Monochromatic Light Filters Employing A Serially Coupled Triple Ring Resonator System
- Author
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Phichai Youplao
- Subjects
Physics ,History ,Resonator ,Optics ,business.industry ,Monochromatic color ,business ,Ring (chemistry) ,Computer Science Applications ,Education - Published
- 2017
77. Manual control of optical tweezer switching for particle trapping and injection.
- Author
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Nithiroth Pornsuwancharoen, Phichai Youplao, Khomyuth Chaiwong, Prateep Phatharacorn, Surasak Chiangga, Koledov, Victor, Ali, Jalil, Aziz, Muhammad Safwan, Senee Suwandee, and Preecha Yupapin
- Subjects
PARTICLES ,OPTICAL switches ,OPTICAL tweezers ,ELECTROOPTICS ,ELECTROMAGNETISM - Abstract
This work presents an optical switching model that the tweezer probe uses for manually switching the controlled by an external switch, in which the upward and downward switching can be operated and simultaneously switched. By using the microring resonator incorporated with the two non-linear phase modulators, the optical tweezer can be generated and the switching probes controlled. The switching time with the table force of ~2 fs is obtained. The tweezer force and torque are calculated and interpreted for molecule trapping and injecting from and to the trapping and the target surfaces. The relative forces and torques are calculated and plotted. In applications, the specific forces and torques can be controlled to perform the appropriate trapping and injecting. The switching time depends on the external switching module, which may be electronically controlled. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
78. Enhanced WDM using a Gaussian pulse within a nano-waveguide
- Author
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Somsak Mitatha, Charoen Vongchumyen, Preecha P. Yupapin, and Phichai Youplao
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Materials science ,Optical fiber ,business.industry ,Optical communication ,Physics::Optics ,Optical ring resonators ,Laser ,Waveguide (optics) ,law.invention ,Wavelength ,Optics ,law ,Wavelength-division multiplexing ,Optoelectronics ,business ,Optical filter ,Computer Science::Databases - Abstract
The new optical communication bandwidths (wavelength bands) using a Gaussian pulse propagating within a nonlinear microring resonator system is proposed. The Results obtained have shown that more available wavelength bands from the different center wavelengths can be generated, which can be used to form new dense wavelength division multiplexing bands. The novelty of the work is that the expansion of communication bands, especially, when the center wavelengths at 400 and 1,400 nm can be obtained by using a common laser pulse, whereas the amplified and non-dispersive light source can be formed.
- Published
- 2010
79. High capacity terahertz frequency combs generated by small scale optical mesh network
- Author
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Preecha P. Yupapin, Nithiroth Pornsuwancharoen, and Phichai Youplao
- Subjects
Materials science ,Physics and Astronomy (miscellaneous) ,business.industry ,Vernier scale ,Frequency band ,Communications system ,Optical mesh network ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,law.invention ,Frequency comb ,Resonator ,Optics ,law ,Electronic engineering ,Redundancy (engineering) ,Power dividers and directional couplers ,business - Abstract
A novel design of mesh ring resonator system is proposed and simulated to obtain the multi frequency comb bands, in which the frequency band less than 10 GHz (about 0.084 nm) of comb lines spacing with commercialized ring parameters is achieved. The proposed system is used to enhance the capacity of optical frequency comb for redundancy networks against the network element failures and to increase the survivability of the communication systems. The dependence of the mesh ring transmission characteristics with coupling coefficients of directional couplers is analyzed and studied. In application, such a system can be employed as an on-chip optical device for redundancy networks against the network element failures and to increase the survivability of the communication systems. The potential for improving the reliability and availability of the optical networks is discussed. Moreover, the proposed system can also be employed as multi sensing devices, where the microscale, for instance, as an atom/molecule force sensor can be measured by the shifted parameters of the Vernier filters.
- Published
- 2014
80. The Simulation of a Force in Micro-scale Sensing Employing an Optical Double Ring Resonator System
- Author
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Phichai Youplao, Tasakorn, M., and Phattaraworamet, T.
81. Novel nanoscale signal processing and networking via a wavelength router
- Author
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Phichai Youplao, Mitatha, S., and Yupapin, P. P.
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