Planar second-harmonic generation with noncollinear pumps in disordered media
We study experimentally the process of the second harmonic generation by two noncollinear beams in quadratic nonlinear crystals with a disordered structure of ferroelectric domains. We show that the second-harmonic radiation is emitted in the form of two cones as well as in a plane representing the...
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| Veröffentlicht in: | Optics express 2008-09, Vol.16 (18), p.14192-14199 |
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| container_title | Optics express |
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| creator | Roppo, Vito Dumay, David Trull, Jose Cojocaru, Crina Saltiel, Solomon M Staliunas, Kestutis Vilaseca, Ramon Neshev, Dragomir N Krolikowski, Wieslaw Kivshar, Yuri S |
| description | We study experimentally the process of the second harmonic generation by two noncollinear beams in quadratic nonlinear crystals with a disordered structure of ferroelectric domains. We show that the second-harmonic radiation is emitted in the form of two cones as well as in a plane representing the cross-correlation of the two fundamental pulses. We demonstrate the implementation of this parametric process for characterisation of femtosecond pulses, enabling the estimation of pulse width, chirp, and front tilt. This is achieved through monitoring the evolution of the autocorrelation trace inside the nonlinear crystal. |
| doi_str_mv | 10.1364/OE.16.014192 |
| format | Article |
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| source | MEDLINE; DOAJ Directory of Open Access Journals; EZB Electronic Journals Library |
| subjects | Computer Simulation Lasers Light Models, Theoretical Refractometry - methods Scattering, Radiation |
| title | Planar second-harmonic generation with noncollinear pumps in disordered media |
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