Journal Article

FZJ-2022-04215

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Room Temperature Lasing in GeSn Microdisks Enabled by Strain Engineering

Buca, D. (Corresponding author)FZJ* ; Bjelajac, A. ; Spirito, D. ; Concepción, O.FZJ* ; Gromovyi, M. ; Sakat, E. ; Lafosse, X. ; Ferlazzo, L. ; von den Driesch, N.FZJ* ; Ikonic, Z. ; Grützmacher, D.FZJ* ; Capellini, G. ; El Kurdi, M.

2022
Wiley-VCH Weinheim

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Please use a persistent id in citations: http://hdl.handle.net/2128/32872  doi:10.1002/adom.202201024

Abstract: The success of GeSn alloys as active material for infrared lasers could pave the way toward a monolithic technology that can be manufactured within mainstream silicon photonics. Nonetheless, for operation on chip, lasing should occur at room temperature or beyond. Unfortunately, despite the intense research in recent years, many hurdles have yet to be overcome. An approach exploiting strain engineering to induce large tensile strain in micro-disk made of GeSn alloy with Sn content of 14 at% is presented here. This method enables robust multimode laser emission at room temperature. Furthermore, tensile strain enables proper valence band engineering; as a result, over a large range of operating temperatures, lower lasing thresholds are observed compared to high Sn content GeSn lasers operating at similar wavelength.

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Contributing Institute(s):

1. Halbleiter-Nanoelektronik (PGI-9)
2. JARA-FIT (JARA-FIT)

Research Program(s):

1. 5234 - Emerging NC Architectures (POF4-523) (POF4-523)

Appears in the scientific report 2022

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; DEAL Wiley ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 10 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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