3 papers
physics.optics2024
Grafted AlGaAs/GeSn Optical Pumping Laser Operating up to 130 K
Jie Zhou, Daniel Vincent, Sudip Acharya +16
Group IV GeSn double-heterostructure (DHS) lasers offer unique advantages of a direct bandgap and CMOS compatibility. However, further improvements in laser performance have been b…
physics.app-ph2024
Characterization of AlGaAs/GeSn heterojunction band alignment via X-ray photoelectron spectroscopy
Yang Liu, Jiarui Gong, Sudip Acharya +12
GeSn-based SWIR lasers featuring imaging, sensing, and communications has gained dynamic development recently. However, the existing SiGeSn/GeSn double heterostructure lacks adequa…
physics.app-ph2024
AlGaAs/GeSn p-i-n diode interfaced with ultrathin AlO
Yang Liu, Yiran Li, Sudip Acharya +9
This study presents the fabrication and characterizations of an AlGaAs/GeSn/GeSn p-i-n double heterostructure (DHS) diode following the grafting a…