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Nonlinear optical phenomena
Laser-induced order–disorder phase transition and second harmonic generation with a threshold in fiber waveguides
V. I. Emel'yanov, A. B. Taeshnikov
Abstract:
A mechanism is proposed of optical second harmonic generation in centrosymmetric media, which has a threshold and is an efficient process. It is assumed that a light-induced phase transition occurs in a system of centers with constant dipole moments interacting via a strong effective Lorentz field and a lattice displacement field, as well as a field representing reemission at the second harmonic frequency. The proposed mechanism accounts for the main results of experimental investigations of second harmonic generation in centrosymmetric fiber waveguides.
Received: 13.04.1990
Citation:
V. I. Emel'yanov, A. B. Taeshnikov, “Laser-induced order–disorder phase transition and second harmonic generation with a threshold in fiber waveguides”, Kvantovaya Elektronika, 18:2 (1991), 266–268 [Sov J Quantum Electron, 21:2 (1991), 236–238]
Linking options:
https://www.mathnet.ru/eng/qe3765 https://www.mathnet.ru/eng/qe/v18/i2/p266
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Abstract page: | 156 | Full-text PDF : | 73 |
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