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Proceedings Paper

Coherent perfect absorption in nonlinear optics
Author(s): Yuanlin Zheng; Wenjie Wan; Xianfeng Chen
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Paper Abstract

Recently, a concept of time reversed lasing or coherent perfect absorber (CPA) has been proposed by A. D. Stone and co-workers, and was shortly experimentally demonstrated by them. The CPA system is illuminated coherently and monochromatically by the time reverse of the output of a lasing mode and the incident radiation is perfectly absorbed. Shortly afterwards, Stefano Longhi extended the idea to realize a CPA for colored incident light, and have theoretically shown that the time reversal of optical parametric oscillation (OPO) in a nonlinear medium could also realize a colored CPA for incident signal and idler fields which can be seemed as a kind of nonlinear CPA. Here we present the realization of such time-reversed processes in nonlinear optics regime, including time-reversed second harmonic generation (SHG) for coherent absorption at harmonic frequency of the pump and time-reversed optical parametric amplification (OPA) for coherent attenuation of colored travelling optical fields. Time reversed SHG is carried out at both phase matching and mismatching conditions, which shows parametric near perfect absorption at the harmonic frequency of the pump. The time reversal of OPA is demonstrated experimentally in a nonlinear medium to form a coherent absorber for perpendicularly polarized signal and idler travelling waves, realizing in the condition of OPA by a type II phase matching scheme. The absorption of signal/idler pair occurs at some specific phase difference. This is the first experimental demonstration of coherent absorption processes in nonlinear optics regime.

Paper Details

Date Published: 22 February 2013
PDF: 8 pages
Proc. SPIE 8600, Laser Resonators, Microresonators, and Beam Control XV, 860014 (22 February 2013); doi: 10.1117/12.2007174
Show Author Affiliations
Yuanlin Zheng, Shanghai Jiao Tong Univ. (China)
Wenjie Wan, Shanghai Jiao Tong Univ. (China)
Univ. of Michigan-Shanghai Jiao Tong Univ. Joint Institute (China)
Xianfeng Chen, Shanghai Jiao Tong Univ. (China)

Published in SPIE Proceedings Vol. 8600:
Laser Resonators, Microresonators, and Beam Control XV
Alexis V. Kudryashov; Alan H. Paxton; Vladimir S. Ilchenko; Lutz Aschke; Kunihiko Washio, Editor(s)

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