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198 results on '"Daher, Malek G."'

13. Efficient Al-doped ZnO nanostructured synthesis by laser-assisted chemical bath: structural, optical, and photocatalytic activity using blue laser irradiation

Author

Zyoud, Samer H., Al Radi, Bayan M., Al Maamari, Bashayer M., Nasor, Mohamed, Zahran, H. Y., Yahia, I. S., Ahmad, Taimoor, Khan, Sohaib N., Zyoud, Ahed H., Shahwan, Moyad, Hassan, Nageeb, Ashames, Akram, Daher, Malek G., Makhadmeh, Ghaseb N., Qamhieh, Naser, Jairoun, Ammar Abdulrahman, and Abdel-wahab, Mohamed Sh.

Published
2024
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15. Design and Analysis of T-Shaped Defect-Based Photonic Crystal Waveguide for Application of Optical Interconnect

Author

Bhavana, A., Pukhrambam, Puspa Devi, Panda, Abinash, Daher, Malek G., Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Tan, Kay Chen, Series Editor, Lenka, Trupti Ranjan, editor, Saha, Samar K., editor, and Fu, Lan, editor

Published
2024
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39. Novel Investigation of a Surface Plasmon Resonance Nanostructure Employing 2D Antimonene Material for the Sensitive Detection of Foremost Human Blood Constituents.

Author

Daher, Malek G., Taya, Sofyan A., Faragallah, Osama S., Armghan, Ammar, Almawgani, Abdulkarem H. M., Alzahrani, Ahmad, and Patel, Shobhit K.

Subjects
*SURFACE plasmon resonance, *LEUCOCYTES, *ERYTHROCYTES, *TRANSFER matrix, *BLOOD plasma
Abstract

The foremost constituents of human blood are plasma, water, hemoglobin, red blood cells (RBCs), and white blood cells. The discovery of these constituents is a very imperative source to identify numerous sicknesses such as anemia, hemophilia, and myeloma. Due to its supporting real‐time explorations, great sensitivity, and simple fabrication with low cost, photonic surface plasmon resonance device (PSPRD) has a massive chance for identifying blood constituents. Kreschmann configuration is based on the projected PSPRD, and the transfer matrix technique is exhausted to analyze the reflectance of PSPRD. The thicknesses of the PSPRD layers have been adjusted to reach the best efficiency. The different constituents of blood have been inspected with their performance parameters. The topmost sensitivity 298 deg RIU−1 is triumphed for RBCs. As a result, it is anticipated that the projected PSPRD is a good candidate for the recognition and revealing of other biomolecules in the future. [ABSTRACT FROM AUTHOR]

Published
2024
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45. Narrow bandpass filter using Octonacci photonic quasicrystal.

Author

Abohassan, Khedr M., Daher, Malek G., Taya, Sofyan A., Panda, Abinash, and Prajapati, Yogendra K.

Abstract

In this paper, we propose structures for tunable narrow bandpass optical filters covering the visible range of 400–800 nm. The transmittance spectra of s-polarized (TE mode) light in one-dimensional photonic crystals are obtained by using a theoretical calculation based on the transfer matrix method. Here, photonic crystals and photonic quasicrystals composed of Si and SiO2 are organized according to some generations of the Octonacci sequence. The number of output channels and their central wavelengths are found to be dependent on the generation number and the angle of incidence. The results show an increase in the quality factor as the angle of incidence increased. Therefore, the proposed structures are believed to be suitable for efficient narrow bandpass filters operating in the visible range. [ABSTRACT FROM AUTHOR]

Published
2024
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46. Low loss flexibility and high efficiency of radio per fiber system for modern wireless communication system.

Author

Smirani, Lassaad K., Abd El-Aziz, Ismail A., Ahammad, SK Hasane, Hossain, Md. Amzad, Daher, Malek G., and Rashed, Ahmed Nabih Zaki

Abstract

This article outlined intermediate/radio frequencies over fiber system performance efficiency measurement for the designed circuit frequencies. Output power, max. Q factor, and optical and electrical signal per noise ratio are also reported against radio and intermediate frequencies for the suggested system with the previous system. The suggested system has reported better efficiency and low loss flexibility than the previous system in the mentioned performance parameters. This study has clarified the low loss flexibility and high efficiency of radio per fiber system for modern wireless optical systems. We have clarified intermediate/radio frequencies over fiber system performance efficiency measurement in the presence of s and z parameters for the designed circuit frequencies. The comparison of the performance simulation parameters based on the previous/proposed models is clarified in the range of radio frequency and intermediate frequency range. [ABSTRACT FROM AUTHOR]

Published
2024
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47. Various transmission codes for the control of bit error rate in both optical wired and wireless communication channels.

Author

Zaki Rashed, Ahmed Nabih, Ahammad, S.K. Hasane, Daher, Malek G., Zyoud, Samer H., Sorathiya, Vishal, Montalbo, Francis Jesmar P., Asaduzzaman, Sayed, Rehana, Hasin, and Zuhayer, Asif

Abstract

This study clarifies the data error rates optimization for OFC/OWC channels based on different transmission codes. These codes that are namely multi bits/symbol digital pulse interval modulation (DPIM), multi bits/symbol pulse position modulation (PPM), nonreturn to zero inverted (NRZI), 4 bit data symbol/5 bit code (4B5B), and Manchester for upgrading optical wired/wireless communication systems. The optical power through OFC/OWC channels, S/N ratio, the output power at the receiver side are stimulated with high bit transmission rates. The effects of coding complexity on the Q-factor, BER, optical power, and electrical received power are also stimulated using both DPIM and PPM coding. [ABSTRACT FROM AUTHOR]

Published
2024
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48. Optical Sensitive Detection of Cervical Cancer Based on Surface Plasmon Resonance Nanostructure.

Author

Daher, Malek G., Trabelsi, Youssef, Rashed, Ahmed Nabih Zaki, Yahia, Ibrahim S., Prajapati, Yogenra Kumar, Almawgani, Abdulkarem H. M., and Alzahrani, Ahmad

Subjects
*SURFACE plasmon resonance, *TRANSFER matrix, *CERVICAL cancer, *BARIUM titanate, *GRAPHENE
Abstract

Cervical cancer is a disease that affects a lot of people all over the world. The success of treatment is significantly increased by early detection. The new surface plasmon resonance sensor (SPRS) described in this article is constructed from layers of silver, BaTiO3, and graphene, as well as a coupling prism. The transfer matrix (TM) approach is used to evaluate the SPRS structure. To obtain the highest sensitivity of the suggested SPRS, the thicknesses of the Ag and BaTiO3 and the number of Gr sheets are evaluated. Investigations are done on all factors of performance of the proposed device. Exemplary efficiency is achieved using 4 nm (BaTiO3) and 60 nm (Ag) materials. Three layers are chosen as the optimal amount of graphene after investigation. When the optimal thicknesses are employed, the suggested SPRS's greatest sensitivity of 300° RIU−1 has been attained. The suggested SPRS displays better sensitivity when compared to SPRS structures that have already been published in the literature. This SPRS is promising to be used in different biosensing applications due to its high performance. [ABSTRACT FROM AUTHOR]

Published
2024
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