State Key Laboratory for Advanced Materials and Devices, Department of Optical Science and Engineering, Advanced Materials Laboratory, Fudan University, Shanghai 200433
State Key Laboratory for Advanced Materials and Devices, Department of Optical Science and Engineering, Advanced Materials Laboratory, Fudan University, Shanghai 200433
摘要Scattering-enhanced femtosecond optical parametric generation (OPG) has been observed and studied in detail, which may decrease the pump threshold of OPGs dramatically and may make OPGs reliable. The experimental demonstration in a LiNbO3 crystal shows that strong enough OPG can be obtained at pump intensity of only about 30GW/cm2 which is well below the crystal damage threshold. Either a synchronized pulsed laser or a cw laser has been used as the scattering source, of which the wavelength, spectral shape and irradiating angle are not strictly required.
Abstract：Scattering-enhanced femtosecond optical parametric generation (OPG) has been observed and studied in detail, which may decrease the pump threshold of OPGs dramatically and may make OPGs reliable. The experimental demonstration in a LiNbO3 crystal shows that strong enough OPG can be obtained at pump intensity of only about 30GW/cm2 which is well below the crystal damage threshold. Either a synchronized pulsed laser or a cw laser has been used as the scattering source, of which the wavelength, spectral shape and irradiating angle are not strictly required.
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2007, Vol. 24 
