activity
20242026
most citedMonolithic Germanium Tin on Si Avalanche Photodiodes

2 citations · 2 across the 6 of their papers we have counts for

collaborators

6 papers

physics.app-ph2026

Study of GeSn Selective Area Growth with Demonstration of SWIR Light Detection

Hryhorii Stanchu, Quang Minh Thai, Rajesh Kumar +16

As germanium-tin (GeSn) epitaxial growth quality continuously improves, the search for an efficient integration strategy of GeSn optoelectronics devices into complementary metal-ox…

physics.app-ph2026

Germanium-tin (GeSn) avalanche photodiode with up to 2.7 micro cutoff wavelength for extended SWIR detection

Quang Minh Thai, Rajesh Kumar, Justin Rudie +11

Separate absorption charge multiplication germanium tin on silicon avalanche photodiode offers a viable solution to achieve CMOS compatible, high sensitivity detection technology i…

physics.ins-det2026

Systematic study of high performance GeSn photodiodes with thick absorber for SWIR and extended SWIR detection

Quang Minh Thai, Rajesh Kumar, Abdulla Said Ali +13

Germanium-tin (GeSn) photodiodes potentiate a viable solution to integrate SWIR and extended SWIR detection technology into CMOS processing line. However, challenges in the growth…

physics.app-ph2025

Ge0.95Sn0.05 on Si avalanche photodiode with Spectral Response Cutoff at 2.14 micrometer

Justin Rudie, Xiaoxin Wang, Rajesh Kumar +9

GeSn-based avalanche photodiode (APD) operating in shortwave infrared (SWIR) wavelength was demonstrated in this work. A separate absorption and charge multiplication (SACM) struct…

cond-mat.mtrl-sci2024★ 2 cited

Monolithic Germanium Tin on Si Avalanche Photodiodes

Justin Rudie, Sylvester Amoah, Xiaoxin Wang +8

We demonstrate monolithically grown germanium-tin (GeSn) on silicon avalanche photodiodes (APDs) for infrared light detection. A relatively thinner Ge buffer design was adopted to…

physics.optics2024

Electrically Injected mid-infrared GeSn laser on Si operating at 140 K

Sudip Acharya, Hryhorii Stanchu, Rajesh Kumar +6

Owing to its true direct bandgap and tunable bandgap energies,GeSn alloys are increasingly attractive as gain media for mid-IR lasers that can be monolithically integrated on Si. D…