collaborators

5 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

Study of electronic band alignment in SiGeSn/GeSn quantum well via internal photoemission effect

Justin Rudie, Huong Tran, Yang Zhang +10

SiGeSn-based optoelectronic devices, which operate across a broad infrared wavelength range, have attracted significant attention, particularly heterostructures utilizing quantum w…

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…