University of Surrey

Test tubes in the lab Research in the ATI Dance Research

Modulation of the absorption coefficient at 1.3 mu m in Ge/SiGe multiple quantum well heterostructures on silicon

Lever, L, Hu, Y, Myronov, M, Liu, X, Owens, N, Gardes, FY, Marko, IP, Sweeney, SJ, Ikonic, Z, Leadley, DR, Reed, GT and Kelsall, RW (2011) Modulation of the absorption coefficient at 1.3 mu m in Ge/SiGe multiple quantum well heterostructures on silicon OPTICS LETTERS, 36 (21). 4158 - 4160. ISSN 0146-9592

[img]
Preview
PDF
optics letters v36 n21 Lever 2011.pdf
Available under License : See the attached licence file.

Download (204Kb)
[img]
Preview
PDF (licence)
SRI_deposit_agreement.pdf

Download (32Kb)

Abstract

We report modulation of the absorption coefficient at 1.3 μm in Ge/SiGe multiple quantum well heterostructures on silicon via the quantum-confined Stark effect. Strain engineering was exploited to increase the direct optical bandgap in the Ge quantum wells. We grew 9 nm-thick Ge quantum wells on a relaxed Si0.22Ge0.78 buffer and a contrast in the absorption coefficient of a factor of greater than 3.2 was achieved in the spectral range 1290–1315 nm.

Item Type: Article
Additional Information: This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/OL.36.004158. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
Related URLs:
Divisions: Faculty of Engineering and Physical Sciences > Electronic Engineering > Advanced Technology Institute > Photonics
Depositing User: Symplectic Elements
Date Deposited: 21 Jun 2012 14:27
Last Modified: 23 Sep 2013 19:25
URI: http://epubs.surrey.ac.uk/id/eprint/531961

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year


Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800