Optical processing deep inside optical materials using counterpropagating pulse-shaped spatial solitons

Masaki Hisaka

doi:10.1117/12.2245582

31 October 2016 Optical processing deep inside optical materials using counterpropagating pulse-shaped spatial solitons

Masaki Hisaka

Proceedings Volume 10021, Optical Design and Testing VII; 100210G (2016) https://doi.org/10.1117/12.2245582
Event: SPIE/COS Photonics Asia, 2016, Beijing, China

Abstract

Optical processing using a pair of counterpropagating pulse-shaped spatial solitons to control the molecular structure deep inside an optical material is investigated. A femtosecond pulsed laser focused at the surface of a strontium barium niobate single crystal induces a pulse-shaped self-focusing second-harmonic beam. The two counterpropagating beams are involved in a head-on collision. Locally reversed crystal domains are formed at the collision point, assisted by external threshold controls such as crystal temperature and an electric dc field. The nonlinear interaction between the soliton collision and the approximate nonperiodic reversed domains induces a change in the second-harmonic intensity of the scattered and transmitted beams, thereby enabling the detection of locally reversed crystal domains.

Citation Download Citation

Masaki Hisaka "Optical processing deep inside optical materials using counterpropagating pulse-shaped spatial solitons", Proc. SPIE 10021, Optical Design and Testing VII, 100210G (31 October 2016); https://doi.org/10.1117/12.2245582

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