Display Settings:

Format

Send to:

Choose Destination
See comment in PubMed Commons below
Opt Lett. 2005 Jun 15;30(12):1479-81.

Programmable focal spot shaping of amplified femtosecond laser pulses.

Author information

  • 1Laboratoire Traitement du Signal et Instrumentation, Centre National de la Recherche Scientifique, Unité Mixte de Recherche 5516, 10 Rue Barrouin, Bât. F, 42000 Saint-Etienne, France. nicolas.sanner@univ-st-etienne.fr

Abstract

We describe the programmable spatial beam shaping of 100-kHz, 4-microJ amplified femtosecond pulses in a focal plane by wave-front modulation. Phase distributions are determined by a numerical iterative procedure. A nonpixelated optically addressed liquid-crystal light valve is used as a programmable wave-front tailoring device. Top-hat, doughnut, square, and triangle shapes of 20-microm size are obtained in a focal plane. Their suitability for femtosecond laser machining is demonstrated.

PMID:
16007780
[PubMed]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Icon for Optical Society of America
    Loading ...
    Write to the Help Desk