On-chip infrared photonics with Si-Ge-heterostructures: what is next?

Fischer, I. A., Brehm, M., De Seta, M., Isella, G., Paul, D. J. , Virgilio, M. and Capellini, G. (2022) On-chip infrared photonics with Si-Ge-heterostructures: what is next? APL Photonics, 7(5), 050901. (doi: 10.1063/5.0078608)

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Abstract

The integration of Ge on Si for photonics applications has reached a high level of maturity: Ge photodetectors are available on the Si platform in foundry processes, and Si/Ge heterostructure multiple quantum-well photodiodes are rapidly progressing towards applications in light modulation. These successes result from decades of development of high-quality material growth and integration, which, more recently, has sparked an increasingly broad field of photonic device research based on Si/Ge heterostructures that extends from quantum cascade lasers to sensors. Here, we highlight selected recent structure and device developments as well as possible future trends that are enabled by the maturity of the SiGe material platform.

Item Type:Articles
Additional Information:IAF acknowledges funding by the Federal Ministry of Education and Research of Germany (BMBF) within the iCampus Cottbus project, grant number 16ES1128K. MB acknowledges funding by the Austrian Science Fund (FWF), Grants No. Y1238- N36, and the Linz Institute of Technology (LIT): Grant No. LIT-2019-7-SEE-114. DJP acknowledges the support of the Royal Academy of Engineering Chair CiET2021\123.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Paul, Professor Douglas
Authors: Fischer, I. A., Brehm, M., De Seta, M., Isella, G., Paul, D. J., Virgilio, M., and Capellini, G.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:APL Photonics
Publisher:American Institute of Physics
ISSN:2378-0967
ISSN (Online):2378-0967
Published Online:05 April 2022
Copyright Holders:Copyright © The Author(s) 2022
First Published:First published in APL Photonics 7(5):050901
Publisher Policy:Reproduced in accordance with the publisher copyright policy

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