Ultra-low-threshold continuous-wave and pulsed lasing in tensile-strained GeSn alloys

A Elbaz, D Buca, N von den Driesch, K Pantzas… - Nature …, 2020 - nature.com
Strained GeSn alloys are promising for realizing light emitters based entirely on group IV
elements. Here, we report GeSn microdisk lasers encapsulated with a SiN x stressor layer to …

Strain engineering and mechanical assembly of silicon/germanium nanomembranes

Q Guo, Z Di, MG Lagally, Y Mei - Materials Science and Engineering: R …, 2018 - Elsevier
Silicon (Si) and/or germanium (Ge) nanomembranes (NMs) play crucial roles in various
applications, including conventional microelectronics, as well as recently emerging high …

Optically pumped GeSn microdisk lasers on Si

D Stange, S Wirths, R Geiger, C Schulte-Braucks… - ACS …, 2016 - ACS Publications
The strong correlation between advancing the performance of Si microelectronics and their
demand of low power consumption requires new ways of data communication. Photonic …

Low-threshold optically pumped lasing in highly strained germanium nanowires

S Bao, D Kim, C Onwukaeme, S Gupta… - Nature …, 2017 - nature.com
The integration of efficient, miniaturized group IV lasers into CMOS architecture holds the
key to the realization of fully functional photonic-integrated circuits. Despite several years of …

GeSnOI mid-infrared laser technology

B Wang, E Sakat, E Herth, M Gromovyi… - Light: Science & …, 2021 - nature.com
GeSn alloys are promising materials for CMOS-compatible mid-infrared lasers
manufacturing. Indeed, Sn alloying and tensile strain can transform them into direct bandgap …

Direct bandgap light emission from strained germanium nanowires coupled with high-Q nanophotonic cavities

J Petykiewicz, D Nam, DS Sukhdeo, S Gupta… - Nano Letters, 2016 - ACS Publications
A silicon-compatible light source is the final missing piece for completing high-speed, low-
power on-chip optical interconnects. In this paper, we present a germanium nanowire light …

Impact of tensile strain on low Sn content GeSn lasing

D Rainko, Z Ikonic, A Elbaz, N von den Driesch… - Scientific reports, 2019 - nature.com
In recent years much effort has been made to increase the Sn content in GeSn alloys in
order to increase direct bandgap charge carrier recombination and, therefore, to reach room …

Analysis of Ge micro-cavities with in-plane tensile strains above 2%

RW Millar, K Gallacher, J Frigerio, A Ballabio… - Optics …, 2016 - opg.optica.org
Ge on Si micro-disk, ring and racetrack cavities are fabricated and strained using silicon
nitride stressor layers. Photoluminescence measurements demonstrate emission at …

Strain-induced enhancement of electroluminescence from highly strained germanium light-emitting diodes

J Jiang, M Xue, CY Lu, CS Fenrich, M Morea… - ACS …, 2019 - ACS Publications
The full exploration of Si-based photonic integrated circuits is limited by the lack of an
efficient light source that is compatible with the complementary metal–oxide–semiconductor …

Enhanced direct-gap light emission from Si-capped n+-Ge epitaxial layers on Si after post-growth rapid cyclic annealing: impact of non-radiative interface …

N Higashitarumizu, Y Ishikawa - Optics Express, 2017 - opg.optica.org
Enhanced direct-gap light emission is reported for Si-capped n^+-Ge layers on Si after post-
growth rapid cyclic annealing (RCA), and impact of non-radiative recombination (NRR) at …