A5061368897- Photonic and Optical Devices
- Photonic Crystals and Applications
- Optical Network Technologies
- Plasmonic and Surface Plasmon Research
- Photonic Crystal and Fiber Optics
- Advanced Fiber Laser Technologies
- Advanced Fiber Optic Sensors
- Semiconductor Lasers and Optical Devices
- Optical Coatings and Gratings
- Advanced Photonic Communication Systems
- Semiconductor Quantum Structures and Devices
- Fern and Epiphyte Biology
- Radio Frequency Integrated Circuit Design
- Silicon Nanostructures and Photoluminescence
- Magneto-Optical Properties and Applications
- Microwave Engineering and Waveguides
- Spectroscopy and Laser Applications
- Solid State Laser Technologies
- Silicone and Siloxane Chemistry
- Silicon and Solar Cell Technologies
- Neural Networks and Reservoir Computing
- Advanced Power Amplifier Design
- Muscle activation and electromyography studies
- Advanced MEMS and NEMS Technologies
- Integrated Circuits and Semiconductor Failure Analysis
Shahid Rajaee Teacher Training University
2016-2025
Brighton General Hospital
2003
Surface plasmon resonance (SPR) is a technique utilized for the label-free detection of cancer cells. In this analysis, we introduce photonic crystal fiber (PCF) designed with an open D-channel, featuring layer gold (Au) and titanium dioxide (TiO2) as plasmonic material. This effectively reduces gap between core layer, resulting in improved performance. Additionally, incorporating TiO2 silica substrate enhances their adhesion contributes to more robust structure. We conducted comprehensive...
Using a two-dimensional photonic crystal lattice, compact and simple structure has been introduced in the present study to construct an all-optical half adder. The designed operates under interference effect. phase difference created different states by putting point defects length of input waveguides. To do analyses, finite-difference time-domain method plane wave expansion have used. advantages this design include small dimensions, high possibility construction, compatibility with...
This paper describes the design and analysis of broadband transimpedance amplifiers (TIAs) based on Regulated Cascode (RGC) configuration. The focus is to deal with bandwidth restriction occurring in optical receivers coming from TIA input parasitic capacitances. Despite conventional method for RGC that a ladder matching network employed isolate capacitance photodiode capacitance, proposed eliminates effects these components by absorbing them T-matching network. analyzed disadvantages...
In this paper, a new topology is proposed for designing and analyzing transimpedance amplifier (TIA) based on active voltage-current feedback. The reduces the input output impedances by using common source transistor as instead of resistor to convert current voltage, we transconductance into transimpedance, then applying an electrical drain required voltage appears at gate terminal. Simulation designed TIA 1.8 V 0.18 µm CMOS technology shows that gain 59 dBΩ with 1 ripple bandwidth 7.9 GHz...
Detection of bio-alcohol is crucial in diverse industries, including forensics, medicine, and food production. This paper presents a novel biosensor for detection water, integrating three micro-cavities with two waveguides within hexagonal photonic crystal array. Employing wavelength interrogation approach finite-difference time-domain (FDTD) simulations, the proposed demonstrates high sensitivity 610 nm/RIU (nanometers per refractive index unit) low limit 7×10-3 RIU. Simulation results...
In this paper, we have proposed a metal-insulator-metal (MIM) pressure sensor which consists of two plasmonic waveguides and double square ring resonator. The rings are connected via rectangular patch located between the them. surface plasmon polaritons (SPPs) can be transferred from to other through patch. finite-difference time-domain method (FDTD) has been used simulate device. Applying on structure, it deforms, red shift 103 nm in resonance wavelength calculated. deformation is linearly...