Modulation of the second-order nonlinear tensor components in multiple-quantum-well structures

Aitchison, J.S., Street, M.W., Whitbread, N.D., Hutchings, D.C. , Marsh, J.H. , Kennedy, G.T. and Sibbett, W. (1998) Modulation of the second-order nonlinear tensor components in multiple-quantum-well structures. IEEE Journal of Selected Topics in Quantum Electronics, 4(4), pp. 695-700. (doi: 10.1109/2944.720481)

Abstract

In this paper, we present experimental results which demonstrate that quantum-well intermixing techniques can be used to modulate the magnitude of the second-order nonlinear coefficient /spl chi//sup (2)/. Impurity-free vacancy disordering with SiO/sub 2/ and Ga/sub 2/O/sub 3/ caps was used to modulate the position of the band edge and hence, the magnitude of /spl chi//sub eff//sup (2)/. Using a coupled quantum-well structure we were able to demonstrate modulation of the d/sub 33/ tensor components associated with the asymmetric structure and of the d/sub 14/ component associated with the bulk crystal structure.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Sibbett, Professor Wilson and Marsh, Professor John and Hutchings, Professor David
• Authors: Aitchison, J.S., Street, M.W., Whitbread, N.D., Hutchings, D.C., Marsh, J.H., Kennedy, G.T., and Sibbett, W.
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• Journal Name: IEEE Journal of Selected Topics in Quantum Electronics
• Publisher: Institute of Electrical and Electronics Engineers
• ISSN: 1077-260X
• ISSN (Online): 1558-4542