Strong coupling in metal-semiconductor microcavities featuring Ge quantum wells: a perspective study

Nanophotonics. 2024 Jan 24;13(10):1693-1700. doi: 10.1515/nanoph-2023-0730. eCollection 2024 Apr.

Abstract

In this work we theoretically investigate the possibility of observing strong coupling at mid-infrared frequencies within the group-IV semiconductor material platform. Our results show that the strong coupling condition is attainable in Ge/SiGe quantum wells integrated in hybrid metal-semiconductor microcavities, featuring a highly n-doped SiGe layer as one of the mirrors.

Keywords: germanium; quantum wells; strong coupling.