Broadband Asymmetric Conical Emission via Cascaded Second-Order Nonlinear Polarization during the Propagation of Femtosecond Laser Pulses in a BBO Crystal
WEN Jing, JIANG Hong-Bing**, YU Jing, YANG Hong, GONG Qi-Huang**
Department of Physics & State Key Laboratory for Mesoscopic Physics, Peking University, Beijing, 100871
Broadband Asymmetric Conical Emission via Cascaded Second-Order Nonlinear Polarization during the Propagation of Femtosecond Laser Pulses in a BBO Crystal
WEN Jing, JIANG Hong-Bing**, YU Jing, YANG Hong, GONG Qi-Huang**
Department of Physics & State Key Laboratory for Mesoscopic Physics, Peking University, Beijing, 100871
摘要We investigate the propagation of femtosecond laser pulses in a 5-mm-thick BBO crystal along the direction of type-I phase-matched second-harmonic generation. An intensity-asymmetric broadband conical emission (500–2000 nm) is demonstrated when a suitable chirp is introduced. It is generated by optical parametric amplification pumped by the second-harmonic light and seeded by the fundamental light which is broadened by cascaded nonlinear processes during second-harmonic generation.
Abstract：We investigate the propagation of femtosecond laser pulses in a 5-mm-thick BBO crystal along the direction of type-I phase-matched second-harmonic generation. An intensity-asymmetric broadband conical emission (500–2000 nm) is demonstrated when a suitable chirp is introduced. It is generated by optical parametric amplification pumped by the second-harmonic light and seeded by the fundamental light which is broadened by cascaded nonlinear processes during second-harmonic generation.
WEN Jing;JIANG Hong-Bing**;YU Jing;YANG Hong;GONG Qi-Huang**
. Broadband Asymmetric Conical Emission via Cascaded Second-Order Nonlinear Polarization during the Propagation of Femtosecond Laser Pulses in a BBO Crystal[J]. 中国物理快报, 2011, 28(6): 64207-064207.
WEN Jing, JIANG Hong-Bing**, YU Jing, YANG Hong, GONG Qi-Huang**
. Broadband Asymmetric Conical Emission via Cascaded Second-Order Nonlinear Polarization during the Propagation of Femtosecond Laser Pulses in a BBO Crystal. Chin. Phys. Lett., 2011, 28(6): 64207-064207.
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2011, Vol. 28 
