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Compact plasmonic modulator based on adiabatic coupled waveguides obtains insertion loss as low as

We demonstrate monolithic integration of quantum cascade laser and detector and slotted photonic crystal waveguide on a single epitaxial heterostructure for on-chip slow light enhanced absorption sensing. Designs can cover λ=3-15μm wavelengths without wafer bonding.

We demonstrate polarization rotators in low index contrast InGaAs-InP material system to enable monolithic integration of quantum cascade lasers and detectors with slotted photonic crystal waveguide gas sensors in the molecular fingerprint region from λ=3-15μm.

We experimentally detect 3 ppm carbon monoxide via optical absorbance in a 1mm long slotted photonic crystal waveguide in silicon-on-sapphire at wavelength λ= 4.55μm. Feasibility of low ppb sensing will be shown by design modifications.

An ultra-compact on-chip optical true-time-delay line features the slow light enhanced fishbone-like one-dimensional photonic crystal waveguide is proposed. A delay time of 65 ps/mm which corresponds to group index of 19.47 is observed experimentally.

We experimentally demonstrate a two-bit thermal-optic ripple-carry full adder based on microdisk resonators in silicon photonics with the advantages of large bandwidth, low power consumption, and high scalability, paving the way to future optical computing.

We design and experimentally demonstrated an ultra-compact modulator using transparent conductive oxide as the gate on 1-D silicon photonic crystal cavity. The device offers an ultra-small active volume (

Integrated photonic waveguides on Al 2 O 3 /SiO 2 platform are proposed to cover the 220∼320nm wavelength-range, which is of paramount significance in protein and nuclei acid quantification. The proposed system requires 500× less volume of solutions compared with NanoDrop™.

Microring resonator based on subwavelength grating waveguides was studied and demonstrated in biosensing experiment to show its thickness-independent high sensitivity, which breaks the limitation in conventional evanescent wave sensors.

Silicon nanophotonic waveguides and microcavities are experimentally investigated. High density lab on chip sensor integration and high sensitivity sensors enabled by engineering slow light and analyte overlap integrals are demonstrated for chemical and biosensing applications.

An ultrasensitive transverse magnetic mode subwavelength grating racetrack resonator with a sensitivity of 429.7nm/RIU and a detection of limit of 3.71×10-4 RIU is demonstrated experimentally.

We propose a ripple-carry electro-optic full adder using microring resonators, taking advantage of unique properties of light on chip. This proposed design with larger bandwidth and lower power consumption paves the way to future optical computing.

Low-loss photonic platform that can span the entire mid-infrared spectral region is reported based on the Ge-on-GaAs wafers. Optical loss of approximately 4.2 dB/cm is measured in ridge-waveguides at 10 μm wavelength.

A silicon-organic hybrid electro-optic (EO) modulator based on one-dimensional photonic crystal slot waveguides is proposed and demonstrated. Effective EO coefficient up to 490 pm/V is observed as a result of the slow group velocity in the proposed structure.

We report the design, simulation and experimental demonstration of low loss subwavelength grating waveguide (SWG) bends. With trapezoidal shape silicon pillars, the average insertion loss of a 5μm SWG waveguide bend is reduced drastically from 5.43 dB to 1.10 dB per 90° bend for quasi-TE polarization.

We demonstrated a flexible crystalline silicon nanomembrane photonic crystal microcavity with a quality factor of 22,000 and experimentally studied its bending behavior.

We demonstrate an efficient adiabatic mode converter for coupling light into a silicon slot photonic crystal waveguide with slot width as large as 320nm. The loss of the mode converter is measured to be 0.08dB.

We experimentally demonstrate the first holey and slotted photonic crystal waveguides in silicon-on-sapphire at mid-infrared wavelength of 3.43μm. Chemical warfare simulant triethylphosphate was detected in gas phase at 10ppm concentration via optical absorbance signature.

High sensitivity L13-type two-dimensional photonic crystal microcavities with nanoholes were fabricated by 193nm photolithography. 0.03 picomolar concentration pancreatic cancer biomarker in patient serum samples was experimentally detected to 10× lower dilution than ELISA.

We present a high-performance silicon-polymer hybrid integrated slot photonic crystal waveguide modulator. A record-high effective in-device r 33 of 1230pm/V, V π ×L of 0.282V×mm, 3-dB bandwidth of 15GHz, and energy consumption of 94.4fJ/bit are experimentally demonstrated.

Six orders of magnitude wide dynamic range (0.1ng/ml to over 100μg/ml), label-free detection of gentamicin small molecules with silicon photonic crystal microcavity biosensors multiplexed by multimode interference power splitters was experimentally demonstrated. Detection specificity was confirmed.

We provide the first experimental demonstration of propagation characteristics of holey and slotted two dimensional photonic crystal waveguides in silicon-on-sapphire at mid-infrared wavelength of 3.43 μm.

We demonstrate a thermo-optic switch comprising a 3.78μm-long coupled photonic crystal resonators coupled to a photonic crystal waveguide. The device has 6nm optical bandwidth, 20dB optical extinction ratio, 18.2mW switching power, and 14.8μsec rise time.

On chip devices for intra-chip and inter-chip optical interconnects with clock-rate 0.88 THz at 1.55-micron are demonstrated. Utilization of slow light on photonic-crystal-waveguide for early breast and lung cancer detection and drug screening are presented. Article not available.

We for the first time demonstrated a flexible crystalline silicon nanomembrane photonic crystal microcavity, which shows a quality factor of 22000 and could be bent to a radius of 5 mm.

Silicon nanomembrane based nanophotonic devices are presented. Further applications using defect engineered photonic crystal waveguide (PCW) based slow light devices provide us with an ultra-sensitive biosensing platform.

Reconfigurable true-time-delay lines, comprising of 2x2 thermo-optic polymer switches and rib waveguides are fabricated utilizing a combination of roll-to-roll (R2R) compatible UV imprinting and ink-jet printing, which promises high throughput and low cost photonic devices.

Typical L-type photonic crystal (PC) microcavities have a dynamic range of approximately 3-4 orders of magnitude in biosensing. We experimentally demonstrated that multiplexing of PC sensors with different geometry can achieve a wide dynamic range covering 6 orders of magnitude with potential for 8 or more orders with suitable optimization.