A5010532705- Optical Network Technologies
- Antenna Design and Analysis
- graph theory and CDMA systems
- Advanced Semiconductor Detectors and Materials
- Advanced Optical Network Technologies
- Metamaterials and Metasurfaces Applications
- Advanced Antenna and Metasurface Technologies
- Nanowire Synthesis and Applications
- Ga2O3 and related materials
- Energy Harvesting in Wireless Networks
- 2D Materials and Applications
- Wireless Body Area Networks
- ZnO doping and properties
- Graphene research and applications
- Microwave Engineering and Waveguides
- Advanced MEMS and NEMS Technologies
- Gas Sensing Nanomaterials and Sensors
- Spectroscopy and Laser Applications
- Acoustic Wave Resonator Technologies
- Semiconductor Quantum Structures and Devices
- Semiconductor Lasers and Optical Devices
- Advanced Photonic Communication Systems
- Dietary Effects on Health
- Multiferroics and related materials
- Kidney Stones and Urolithiasis Treatments
Chandigarh University
2018-2025
Manipal Hospital
2025
Punjab Engineering College
2015-2022
Post Graduate Institute of Medical Education and Research
1994
This paper presents three self-powered photodetectors namely, p+-bilayer graphene (BLG)/n+-ZnO nanowires (NWs), p+-BLG/n+-Si NWs/p--Si and p+-BLG/n+-ZnO NWs/p--Si. The Silvaco Atlas TCAD software is utilized to characterize the optoelectronic properties of all devices validated by analytical modeling. proposed dual-junction cover broadband spectral response varying from ultraviolet near-infrared wavelengths. dual-heterojunction photodetector exhibits photocurrent switching with rise fall...
In this study, the authors present three different metamaterial absorbers (MMAs) namely, T, split‐I (SI) and split‐Jerusalem cross (SJC) with dimensions geometrical configurations. The absorption rates of T‐, SI‐ SJC‐shaped are studied at microwave frequencies. T‐shaped absorber demonstrates perfect 10.19 GHz, making it suitable for single band operation, whereas SI‐shaped exhibits two peaks 9.32 10.75 GHz finding its application in dual operation. However, novel multiple 9.92, 10.42, 10.93,...
This paper presents a compact 5G wideband antenna designed for body-centric networks (BCN. The single element design includes simple T-shaped radiator patch with ring shaped ground plane and transformer impedance feedline. First, the was simulated in free-space, its resonant frequency is found to be 27 GHz, falling within 5G’s n261 band. proposed has size of 23.375 mm 3 , it offers wide bandwidth 2.0 GHz (26–28 GHz). Parametric studies demonstrated that by increasing length slots patch, can...
We present novel p <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">+</sup> -bilayer graphene (BLG) and mercury cadmium telluride (MCT)-based single- dual-junction photodetectors, namely, -BLG/n xmlns:xlink="http://www.w3.org/1999/xlink">-</sup> -MCT -MCT/n -MCT, operating in long infrared regime. The optoelectronic characterizations utilizing Silvaco Atlas TCAD are validated by analytical modeling. All the devices demonstrate self-powered mode...
Type-II superlattice (T2SL) material is used to design highly efficient next-generation infrared (IR) detectors. The flexibility of the allows integration unipolar barrier IR detector architecture suppress generation-recombination currents by blocking majority charge carriers and improve device performance. This paper presents a self-powered T2SL that operates in long-wave regime. It comprises contact layer made p+-bilayer graphene (G) p–-Hg1–xCdx=0.41Te (B) placed over p+-Hg1–xCdx=0.2217Te...
This study aims to design a compact antenna structure suitable for implantable devices, with broad frequency range covering various bands such as the Industrial Scientific and Medical band (868–868.6 MHz, 902–928 5.725–5.875 GHz), Wireless Telemetry Service (WMTS) band, subset of unlicensed 3.5–4.5 GHz ultra-wideband (UWB) that is free interference, Wi-Fi spectra (3.6 GHz, 4.9 5 5.9 6 GHz). The supports both low high frequencies efficient data transfer compatible communication technologies....
Semantic segmentation of high-resolution images from remote sensing is crucial across various sectors. However, due to limitations in computational resources and the complexity network architectures, many sophisticated semantic models struggle with efficiency real-world applications, leading an interest developing lightweight model like borders. These often employ a dual-branch structure, which balances processing speed performance effectively. Yet, this design typically falls short...
It is important in the rising demands to have efficient anomaly detection camera surveillance systems for improving public safety a complex environment. Most of available methods usually fail capture long-term temporal dependencies and spatial correlations, especially dynamic multi-camera settings. Also, many traditional rely heavily on large labeled datasets, generalizing poorly when encountering unseen anomalies process. We introduce new framework address such challenges by incorporating...
Graphene and zinc oxide (ZnO) nanowires (NWs)-based photodetectors demonstrate excellent photodetection performance in the ultraviolet (UV) spectrum regime. This paper presents design analysis of a heterostructure model p+-few-layer graphene (p+-FLG)/n--ZnO NWs-based UV photodetector. The utilizes unique properties few-layer to enhance light absorption improve photodetector performance. under both self-biasing conductive modes operation reveals that integrated electric field photovoltaic...
Hybrid electric vehicles (HEVs) represent a significant advancement in automotive technology, bridging the gap between conventional and pure by combining two distinct power sources. This integration enhances car efficiency addresses concerns about high fuel consumption emissions traditional vehicles. The transition to hybrid models reduces harmful petrol emissions, contributing positively environmental sustainability mitigating impacts of global warming. Machine learning (ML) algorithms play...
We present a high-performance bilayer graphene (BLG) and mercury cadmium telluride (Hg
Abstract This research explores the design of an infrared (IR) photodetector using mercury cadmium telluride (Hg 1– x Cd Te). It proposes two- and three-dimensional homojunction models based on p + -Hg 0.7783 0.2217 Te/n – Te, focusing applications in long-wavelength range. The photodetector’s performance is analyzed Silvaco ATLAS TCAD software compared with analytical calculations drift-diffusion, tunneling, Chu’s approximation techniques. Optimized for operation at 10.6 μm wavelength under...
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Abstract Nowadays, nature–inspired metaheuristic algorithms are most powerful optimizing for solving the NP–complete problems. This paper proposes three approaches to find near–optimal Golomb ruler sequences based on in a reasonable time. The optimal (OGR) found their application channel–allocation method that allows suppression of crosstalk due four–wave mixing optical wavelength division multiplexing systems. simulation results conclude proposed optimization superior existing conventional...