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Proceedings Paper

ZnO based optical modulator in the visible wavelengths
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Paper Abstract

In order to demonstrate tunable absorption characteristics of ZnO, photodetection properties of ZnO based thin-film transistors are investigated. By controlling the occupancy of the trap states, the optical absorption coefficient of ZnO in the visible light spectrum is actively tuned with gate bias. An order of magnitude change of absorption coefficient is achieved. An optical modulator is proposed exploiting such tunable absorption mechanism.

Paper Details

Date Published: 18 March 2013
PDF: 6 pages
Proc. SPIE 8626, Oxide-based Materials and Devices IV, 86261T (18 March 2013); doi: 10.1117/12.2005558
Show Author Affiliations
Ali K. Okyay, Bilkent Univ. (Turkey)
Levent E. Aygün, Bilkent Univ. (Turkey)
Feyza B. Oruç, Bilkent Univ. (Turkey)

Published in SPIE Proceedings Vol. 8626:
Oxide-based Materials and Devices IV
Ferechteh Hosseini Teherani; David C. Look; David J. Rogers, Editor(s)

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