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Comparison between the Performance in Si,Ge and GaAs Photodetector
Hagar Marouf;El-Sayed M. El-Rabaie;Ahmed Nabih Zaki Rashed;Khalil ElKhamisy
2023 3rd International Conference on Electronic Engineering (ICEEM)
Year: 2023 | Conference Paper |
In theory, the groove surface plasmon polaritons (SPPs) launcher that surrounds an unusual Silicon: Si, Germanium, or Gallium Arsenide: GaAs Pin photodetector can be exploited to increase the photocurrent of the detector. Constructive interference is created because of the alteration between the incident light that is Sili from above and the SPPs that are propagating towards the photodetector. The...Show More
Highly Sensitive Triple-Band THz Metamaterial Biosensor for Cancer Cell Detection
Ahmed Refaat Elhelw;Mahmoud Salman S. Ibrahim;Ahmed Nabih Zaki Rashed;Abd El-Naser A. Mohamed;Mohamed Farhat O. Hameed;Salah Sabry Ahmed Obayya
Highly sensitive triple-band metamaterial-based biosensor for different cancer cells detection is suggested and numerically analyzed. The reported sensor has a polyimide dielectric layer which is sandwiched between gold bottom plane and top metallic patches. The analyte sample covers the metallic patch where multiple resonances occur with high absorption. The resonance frequencies depend on the op...Show More
Deeply Trained Real-Time Body Sensor Networks for Analyzing the Symptoms of Parkinson’s Disease
Rajasoundaran Soundararajan;A. V. Prabu;Sidheswar Routray;Prince Priya Malla;Arun Kumar Ray;Gopinath Palai;Osama S. Faragallah;Mohammed Baz;Matokah M. Abualnaja;Mohamoud M. A. Eid;Ahmed Nabih Zaki Rashed
Parkinson’s Disease (PD) is a neural system disorder that disturbs the mental activities and physical activities of human beings. Analyzing the symptoms and biosignal data of PD is crucially focused in medical research fields. The existing PD diagnosis models are limited to real-time issues, insufficient deep data extraction, and early monitoring problems. On the scope, the proposed Optimal Health...Show More
Execution Time Management for Crosstalk Free Routing in Networks Based on Optical Switches
2018 International Japan-Africa Conference on Electronics, Communications and Computations (JAC-ECC)
Year: 2018 | Conference Paper |
Implementing optics to computer interconnection networks is a general orientation nowadays. Optical multistage interconnection networks (OMINs) are a trending solution for communication applications. However, optical crosstalk occurs when two signals are coupled into one switching element at a time. Under the need of dodging crosstalk, this paper deals with the application of proposed fast Zero He...Show More
Performance enhancement of free space optical (FSO) systems using polarized DWDM-OFDM technique under atmospheric disturbances
Abd El-Naser A. Mohamed;Ahmed Nabih Zaki Rashed;Mohamed S. F. Tabbour;Amira M. Ismail
2017 13th International Computer Engineering Conference (ICENCO)
Year: 2017 | Conference Paper |
Cited by: Papers (4)
For future wireless networks, radio over free space optics (Ro-FSO) is a promising technology. 20 channels Dense Wavelength Division Multiplexing (DWDM) over FSO Communication system successfully has been demonstrated with bit rate 10Gbps. FSO communication is an optical communication technology where optical data wirelessly transmitted from one place to another. The major advantages of FSO are fr...Show More
Optimization of FBG performance parameters under gamma radiation and temperature effects
Abd El-Naser A. Mohamed;Ahmed Nabih Zaki Rashed;Ahmed I. Elsaket;M. M. Zaky;Mohamed A. Gaheen
2017 13th International Computer Engineering Conference (ICENCO)
Year: 2017 | Conference Paper |
Cited by: Papers (2)
In this paper, the effect of grating length for different apodization and chirped functions on the overall performance of an optical communication system has been studied. The system layout was performed by utilizing Optisystem software, where 5 Gb/s non return to zero signal was attacked into single mode fiber and fiber Bragg grating. The values of system performance parameters like maximum quali...Show More
Modeling of radiation induced luminescence and how to reduce Cherenkov effect in optical fibers
Imbaby I. Mahmoud;Abd El-Naser A. Mohamed;Ahmed Nabih Zaki Rashed;Mohamed S. El Tokhy;Osama H. Elgzar
2013 5th International Conference on Modelling, Identification and Control (ICMIC)
Year: 2013 | Conference Paper |
Radiation-induced luminescence of fibers was shown to result from the Cherenkov process occurring within the fibers. In this paper we use A ‘two-photon-flows’ model to reveals the relation between the effect of light emission and the optical fiber parameters by using Vissim environment. This formulated treatment provides a mean to control the optical properties of fibers in radiation environments....Show More
An accurate model for chromatic dispersion in optical fibers under radiation and thermal effects
Imbaby I. Mahmoud;Abd El-Naser A. Mohamed;Ahmed Nabih Zaki Rashed;Mohamed S. El Tokhy;Osama H. Elgzar
2013 5th International Conference on Modelling, Identification and Control (ICMIC)
Year: 2013 | Conference Paper |
Radiation and temperature influence the optical fiber characteristics. These influences such as increasing the chromatic dispersion were studied and shown to result from the refractive index changes occurring within the fibers induced by radiation and thermal effects. In this paper we present a model and a simulation results to reveals the effect of radiation and temperature on the optical fiber c...Show More
Optical Image Encryption Based on Chaotic Baker Map and Double Random Phase Encoding
Ahmed M. Elshamy;Ahmed N. Z. Rashed;Abd El-Naser A. Mohamed;Osama S. Faragalla;Yi Mu;Saleh A. Alshebeili;F. E. Abd El-Samie
Journal of Lightwave Technology
Cited by: Papers (86)
This paper presents a new technique for optical image encryption based on chaotic Baker map and Double Random Phase Encoding (DRPE). This technique is implemented in two layers to enhance the security level of the classical DRPE. The first layer is a pre-processing layer, which is performed with the chaotic Baker map on the original image. In the second layer, the classical DRPE is utilized. Matla...Show More
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