论文信息 - Pulse contrast enhancement of high-energy pulses by use of a gas-filled hollow waveguide.

Pulse contrast enhancement of high-energy pulses by use of a gas-filled hollow waveguide.

Using nonlinear ellipse rotation in a gas-filled hollow waveguide, we have increased the pulse contrast of a microjoule femtosecond laser pulse by several orders of magnitude. This scheme offers a number of advantages over competing techniques, including a high degree of tunability that allows for a broad range of input pulse parameters, higher throughput, greater stability, and an output pulse with high spatial quality that is compressible to a quarter of the original temporal width.

[1] Marvin J. Weber,et al. CRC HANDBOOK of LASER SCIENCE and TECHNOLOGY , 1999 .

[2] O. Svelto,et al. A novel-high energy pulse compression system: generation of multigigawatt sub-5-fs pulses , 1997 .

[3] T. Brabec,et al. Theory of self-focusing in a hollow waveguide. , 1998, Optics letters.

[4] T. Brabec,et al. Nonlinear source for the generation of high-energy few-cycle optical pulses. , 1998, Optics letters.

[5] Gerard Mourou,et al. Temporal contrast in Ti:sapphire lasers, characterization and control , 1998 .

[6] O. Svelto,et al. Generation of high-energy 10-fs pulses by a new pulse compression technique , 1996, Summaries of papers presented at the Conference on Lasers and Electro-Optics.

[7] S. Silvestri,et al. Compression of high-energy laser pulses below 5 fs. , 1997, Optics letters.

[8] Nonlinear propagation dynamics of an ultrashort pulse in a hollow waveguide. , 2000, Optics letters.

[9] G Fibich,et al. Critical power for self-focusing in bulk media and in hollow waveguides. , 2000, Optics letters.

[10] M. Richardson,et al. A passive nonresonant technique for pulse contrast enhancement and gain isolation , 1978 .

[11] G. Mourou,et al. Shaping of clean, femtosecond pulses at 1.053 μm for chirped-pulse amplification , 1992 .