论文信息 - Self-channeling of femtosecond visible laser pulse with microjoule energy and micromodification in transparent target

Self-channeling of femtosecond visible laser pulse with microjoule energy and micromodification in transparent target

We have observed self-guiding of a single femtosecond visible laser pulse in the bulk of fused silica. The filament length and diameter versus pulse energy have been measured. Velocity of ions flying out from the plasma channel was determined with the use of time-of-flight measurements. The laser-induced micromodification in the bulk of the fused silica has discrete structure and is close to the filament form.

[1] See Leang Chin,et al. The critical laser intensity of self-guided light filaments in air , 2000 .

[2] Jeffrey A. Squier,et al. Third-harmonic generation imaging of laser-induced breakdown in glass , 1999 .

[3] E. Mazur,et al. Ultrafast-laser driven micro-explosions in transparent materials , 1997 .

[4] S. Chin,et al. Supercontinuum generation versus optical breakdown in CO(2) gas. , 1993, Optics letters.

[5] A. Becker,et al. Intensity clamping of a femtosecond laser pulse in condensed matter , 2002 .

[6] K. Miura,et al. Writing waveguides in glass with a femtosecond laser. , 1996, Optics letters.

[7] S Tzortzakis,et al. Self-guided propagation of ultrashort IR laser pulses in fused silica. , 2001, Physical review letters.

[8] J. Nishii,et al. In situ observation of photoinduced refractive-index changes in filaments formed in glasses by femtosecond laser pulses. , 2001, Optics letters.