Si-based GeSn photodetectors toward mid-infrared imaging applications

H Tran, T Pham, J Margetis, Y Zhou, W Dou… - ACS …, 2019 - ACS Publications
The GeSn detector offers high-performance Si-based infrared photodetectors with
complementary metal-oxide-semiconductor (CMOS) technique compatibility. In this work, we …

Emerging technologies in Si active photonics

X Wang, J Liu - Journal of Semiconductors, 2018 - iopscience.iop.org
Silicon photonics for synergistic electronic–photonic integration has achieved remarkable
progress in the past two decades. Active photonic devices, including lasers, modulators, and …

Si-based GeSn lasers with wavelength coverage of 2–3 μm and operating temperatures up to 180 K

J Margetis, S Al-Kabi, W Du, W Dou, Y Zhou… - ACs …, 2017 - ACS Publications
A Si-based monolithic laser is strongly desired for the full integration of Si-photonics. Lasing
from the direct bandgap group-IV GeSn alloy has opened a new avenue, different from the …

Room temperature lasing in GeSn microdisks enabled by strain engineering

D Buca, A Bjelajac, D Spirito… - Advanced Optical …, 2022 - Wiley Online Library
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 …

Advances in GeSn alloys for MIR applications

V Reboud, O Concepción, W Du, M El Kurdi… - Photonics and …, 2024 - Elsevier
Silicon photonics is widely used for near InfraRed (IR) applications up to 1.6 µm. It plays a
key role in short-range optical data communications. However, silicon photonics does not …

Investigation of GeSn strain relaxation and spontaneous composition gradient for low-defect and high-Sn alloy growth

W Dou, M Benamara, A Mosleh, J Margetis, P Grant… - Scientific reports, 2018 - nature.com
Recent development of group-IV alloy GeSn indicates its bright future for the application of
mid-infrared Si photonics. Relaxed GeSn with high material quality and high Sn composition …

Enhanced Sn incorporation in GeSn epitaxial semiconductors via strain relaxation

S Assali, J Nicolas, O Moutanabbir - Journal of Applied Physics, 2019 - pubs.aip.org
We investigate the effect of strain on the morphology and composition of GeSn layers grown
on Ge/Si virtual substrates. By using buffer layers with controlled thickness and Sn content …

Optically pumped lasing at 3 μm from compositionally graded GeSn with tin up to 22.3%

W Dou, Y Zhou, J Margetis, SA Ghetmiri, S Al-Kabi… - Optics letters, 2018 - opg.optica.org
The recent demonstration of the GeSn laser opened a promising route towards the
monolithic integration of light sources on the Si platform. A GeSn laser with higher Sn …

Progress on germanium–tin nanoscale alloys

J Doherty, S Biswas, E Galluccio… - Chemistry of …, 2020 - ACS Publications
Group IV alloys have attracted interest in the drive to create Si compatible, direct band gap
materials for implementation in complementary metal oxide semiconductor (CMOS) and …

Growth and strain modulation of GeSn alloys for photonic and electronic applications

Z Kong, G Wang, R Liang, J Su, M Xun, Y Miao, S Gu… - Nanomaterials, 2022 - mdpi.com
GeSn materials have attracted considerable attention for their tunable band structures and
high carrier mobilities, which serve well for future photonic and electronic applications. This …