Dr. Sheikh Ziauddin Ahmed Profile

Dr. Sheikh Ziauddin Ahmed

at Univ of Virginia

SPIE Involvement:

Author

Publications (5)

Proceedings Article | 11 March 2024 Presentation + Paper

Optical constants of digital alloy InGaAs

Bingtian Guo, Baolai Liang, Sheikh Ahmed, Sanjay Krishna, Joe Campbell

Proceedings Volume 12880, 128800C (2024) https://doi.org/10.1117/12.3001599

KEYWORDS: Indium gallium arsenide, Refractive index, Absorption, Alloys, Spectroscopic ellipsometry, Short wave infrared radiation, Photodetectors, Ellipsometry, Optoelectronic devices, Monolayers

Read Abstract +

Proceedings Article | 31 May 2022 Presentation + Paper

Development of high-performance graphene-HgCdTe detector technology for mid-wave infrared applications

Ashok Sood, John Zeller, Parminder Ghuman, Sachidananda Babu, Nibir Dhar, Randy Jacobs, Samiran Ganguly, Sheikh Ahmed, Farjana Tonni, Avik Ghosh, Latika Chaudhary, Harry Efstathiadis

Proceedings Volume 12091, 1209108 (2022) https://doi.org/10.1117/12.2622239

KEYWORDS: Graphene, Sensors, Mercury cadmium telluride, Mid-IR, Photodetectors, Infrared sensors, Doping, Boron

Read Abstract +

Proceedings Article | 5 March 2021 Presentation

Design methodology of high-gain III-V digital alloy avalanche photodiodes

Sheikh Ahmed, Jiyuan Zheng, Yaohua Tan, Joe Campbell, Avik Ghosh

Proceedings Volume 11680, 116800V (2021) https://doi.org/10.1117/12.2578959

KEYWORDS: Avalanche photodetectors, Avalanche photodiodes, Digital photography, Silicon, Signal detection, Scattering, Photodetectors, Phonons, Optical instrument design, Fiber optic communications

Read Abstract +

Proceedings Article | 27 April 2020 Presentation

Density functional theory based bandstructure analysis of graphene-HgCdTe heterostructure mid-wave infrared detector for Earth science applications (Conference Presentation)

Samiran Ganguly, Sheikh Ahmed, Avik Ghosh, Ashok Sood, John Zeller, Parminder Ghuman, Sachidananda Babu, Nibir Dhar

Proceedings Volume 11388, 1138803 (2020) https://doi.org/10.1117/12.2559001

KEYWORDS: Mid-IR, Sensors, Infrared sensors, Earth sciences, Heterojunctions, Mercury cadmium telluride, Sensor performance, Graphene, Photodetectors, Physics

Read Abstract +

Proceedings Article | 23 April 2020 Presentation

A multiscale compact model of low noise p-i-n avalanche photodiodes (Conference Presentation)

Sheikh Ahmed, Samiran Ganguly, Yuan Yuan, Jiyuan Zheng, Joe Campbell, Avik Ghosh

Proceedings Volume 11386, 1138607 (2020) https://doi.org/10.1117/12.2556202

KEYWORDS: Systems modeling, Avalanche photodetectors, Avalanche photodiodes, Telecommunications, Monte Carlo methods, Instrument modeling, Internet, Photonic devices, Electronic components, Sensing systems

Read Abstract +

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Keywords/Phrases

Search In:

Publication Years