Chinese Optics Letters, 2007, 5 (8): 490, Published Online: Aug. 8, 2007
Pulse compression and supercontinuum at different powers of femtosecond pulses in water Download: 701次
脉冲压缩 超连续谱 飞秒脉冲 320.2250 Femtosecond phenomena 320.5520 Pulse compression 190.7110 Ultrafast nonlinear optics 140.0140 Lasers and laser optics
Abstract
Propagation of femtosecond light pulses in water is investigated. By changing input power from slightly above to highly above threshold for self-focusing, it is shown that either group velocity dispersion (GVD) or multi-photon ionization (MPI) and multi-photon absorption (MPA) may arrest the collapse. When MPI and MPA dominate the propagation, the pulse can be self-compressed to a few optical cycles. In spectral domain, MPI alone induces a strong blue shift. MPA can restrain this strong blue shift.
Feng Xu, Jiansheng Liu, Ruxin Li, Zhizhan Xu. Pulse compression and supercontinuum at different powers of femtosecond pulses in water[J]. Chinese Optics Letters, 2007, 5(8): 490.