Title :
Uncollapsed self-focusing of femtosecond pulses in dielectric media due to the saturation of nonlinear refractive index
Author :
Tai-Wei Yau ; Chau-Hwang Lee ; Jyhpyng Wang
Author_Institution :
Inst. of Electro-Opt. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
Summary form only given. We analyze the spatiotemporal waveform evolution of self-focused high power femtosecond pulses with a three dimensional phase-retrieval cross-correlation technique. The FWHM beam diameter evolution for 8l0-nm, 270-fs pulses propagating in sapphire due to self-focusing. Within the experimental power range, the beams shrink on propagation, and no catastrophic beam collapse was observed.
Keywords :
high-speed optical techniques; optical correlation; optical saturation; optical self-focusing; refractive index; 3D phase-retrieval cross-correlation technique; FWHM beam diameter evolution; catastrophic beam collapse; dielectric media; nonlinear refractive index saturation; sapphire; self-focused high power femtosecond pulses; self-focusing; spatiotemporal waveform evolution; uncollapsed fs pulse self-focusing; Dielectrics; Optical pulses; Optical pumping; Optical saturation; Optical scattering; Optical solitons; Optimized production technology; Pulse amplifiers; Stimulated emission; Ultrafast optics;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 2000. (QELS 2000). Technical Digest
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
1-55752-608-7
