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Quantum ratchet effects induced by terahertz radiation in GaN-based two-dimensional structures

Weber, W., Golub, L. E., Danilov, S. N., Karch, J., Reitmaier, C., Wittmann, B., Bel'kov, V. V., Ivchenko, E. L., Kvon, Z. D., Vinh, N. Q., van der Meer, A. F. G., Murdin, B. N. and Ganichev, S. D. (2008) Quantum ratchet effects induced by terahertz radiation in GaN-based two-dimensional structures Physical Review B, 77 (245304). ISSN 1098-0121

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Abstract

Photogalvanic effects are observed and investigated in wurtzite (0001)-oriented GaN/AlGaN low-dimensional structures excited by terahertz radiation. The structures are shown to represent linear quantum ratchets. Experimental and theoretical analysis exhibits that the observed photocurrents are related to the lack of an inversion center in the GaN-based heterojunctions.

Item Type: Article
Additional Information: Published in Physical Review B, 77, 245304 (2008). © 2008 The American Physical Society.
Divisions: Faculty of Engineering and Physical Sciences > Electronic Engineering > Advanced Technology Institute > Photonics
Faculty of Engineering and Physical Sciences > Physics
Depositing User: Mr Adam Field
Date Deposited: 27 May 2010 14:44
Last Modified: 23 Sep 2013 18:35
URI: http://epubs.surrey.ac.uk/id/eprint/1799

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