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Proceedings Paper

Observation of strong and broadband terahertz induced electroabsorption in multiple quantum wells
Author(s): Chia-Yeh Li; Denis V. Seletskiy; Jeffrey G. Cederberg; Mansoor Sheik-Bahae
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Paper Abstract

We report the observation of strong terahertz-induced electroabsoption (EA) modulation in in multiple double quantum well (MDQW) structures Broadband terahertz generated by two-color laser induced plasma is focused (~1MV/cm) onto the MQW and spectro-temporal response is probed in transmission geometry, where up to 60% modulation signals are observed. EAS signal is attributed to several mechanisms, including observed qualitative agreement with the two-dimensional Franz-Keldysh response. Utilizing strong EA signals, we present a simple THz imaging scheme using conventional imagers.

Paper Details

Date Published: 14 March 2013
PDF: 8 pages
Proc. SPIE 8623, Ultrafast Phenomena and Nanophotonics XVII, 86230O (14 March 2013); doi: 10.1117/12.2004633
Show Author Affiliations
Chia-Yeh Li, The Univ. of New Mexico (United States)
Denis V. Seletskiy, The Univ. of New Mexico (United States)
Univ. Konstanz (Germany)
Jeffrey G. Cederberg, Sandia National Labs. (United States)
Mansoor Sheik-Bahae, The Univ. of New Mexico (United States)

Published in SPIE Proceedings Vol. 8623:
Ultrafast Phenomena and Nanophotonics XVII
Markus Betz; Abdulhakem Y. Elezzabi; Jin-Joo Song; Kong-Thon Tsen, Editor(s)

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