Phase-matched third-harmonic generation in anisotropically nanostructured silicon |
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| Authors: | S V Zabotnov S O Konorov L A Golovan’ A B Fedotov A M Zheltikov V Yu Timoshenko P K Kashkarov H Zhang |
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| Institution: | (1) Moscow State University, Vorob’evy gory, Moscow, 119992, Russia;(2) Department of Physics, Peking University, 100871 Beijing, China |
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| Abstract: | A frequency-tunable laser system based on an optical parametric oscillator is used to implement phase-matched third-harmonic generation in porous silicon films with a strong form birefringence. Phase matching, orientation dependences, and the behavior of the third harmonic as a function of the thickness of an absorbing film are confirmed by calculations and linear-optical measurements. |
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