Optically pumped GeSn micro-disks with 16% Sn lasing at 3.1 μm up to 180 K

V Reboud, A Gassenq, N Pauc, J Aubin… - Applied Physics …, 2017 - pubs.aip.org
Recent demonstrations of optically pumped lasers based on GeSn alloys put forward the
prospect of efficient laser sources monolithically integrated on a Si photonic platform. For …

Raman spectral shift versus strain and composition in GeSn layers with 6%–15% Sn content

A Gassenq, L Milord, J Aubin, N Pauc, K Guilloy… - Applied Physics …, 2017 - pubs.aip.org
GeSn alloys are the subject of intense research activities as these group IV semiconductors
present direct bandgap behaviors for high Sn contents. Today, the control of strain becomes …

Modulation of light absorption in flexible GeSn metal–semiconductor–metal photodetectors by mechanical bending

S An, S Wu, CS Tan, GE Chang, X Gong… - Journal of Materials …, 2020 - pubs.rsc.org
We have demonstrated flexible GeSn metal–semiconductor–metal (MSM) photodetectors
(PDs) by exploring the effect of mechanical strain on their optoelectronic properties. The PDs …

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 …

Strain Engineering of the Electronic States of Silicon‐Based Quantum Emitters

A Ristori, M Khoury, M Salvalaglio… - Advanced Optical …, 2024 - Wiley Online Library
Light‐emitting complex defects in silicon have been considered a potential platform for
quantum technologies based on spin and photon degrees of freedom working at telecom …

Laser crystallization of amorphous Ge thin films via a nanosecond pulsed infrared laser

C Korkut, K Çınar, I Kabacelik, R Turan… - Crystal Growth & …, 2021 - ACS Publications
Understanding the dynamics of the laser crystallization (LC) process of Ge thin films by
nanosecond (ns) pulsed infrared (IR) lasers is important for producing homogeneous, crack …

Temperature dependence of strain–phonon coefficient in epitaxial Ge/Si (001): A comprehensive analysis

CL Manganelli, M Virgilio, O Skibitzki… - Journal of Raman …, 2020 - Wiley Online Library
We investigate the temperature dependence of the Ge Raman mode strain–phonon
coefficient in Ge/Si heteroepitaxial layers. By analyzing the temperature‐dependent …

Direct bandgap control by narrowing the germanium strip structure on silicon for C+ L band photonic devices

S Sonoi, R Katamawari, M Shimokawa… - IEEE Journal of …, 2022 - ieeexplore.ieee.org
This study reports the bandgap engineering of a Ge epitaxial layer on Si to tune the
operating wavelength of optical intensity modulators and photodetectors in the C (1.530 …

Raman strain–shift measurements and prediction from first-principles in highly strained silicon

N Roisin, MS Colla, JP Raskin, D Flandre - Journal of Materials Science …, 2023 - Springer
This work presents how first-principles simulations validated through experimental
measurements lead to a new accurate prediction of the expected Raman shift as a function …

Strain and stress relationships for optical phonon modes in monoclinic crystals with as an example

R Korlacki, M Stokey, A Mock, S Knight, A Papamichail… - Physical Review B, 2020 - APS
Strain-stress relationships for physical properties are of interest for heteroepitaxial material
systems, where strain and stress are inherent due to thermal expansion and lattice …