1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Help & advice need on how fs laser beam propergate in glass

  1. Apr 26, 2010 #1
    Hi all,

    can someone kindly advice on how to model a femtosecond laser beam profile when it is focus on/into a transparent material.


  2. jcsd
  3. Apr 26, 2010 #2

    Andy Resnick

    User Avatar
    Science Advisor
    Education Advisor

    This problem has been analyzed in excruciating detail. What have you found out so far?
  4. Apr 27, 2010 #3
    Hi Andy,

    i did some experiment & found that the laser machined profile varies with polarziation.

    Thus i want to verify my observation with some modelling, but i was unsure what are the equations & approach to this.

    any suggestion or recommendation. Tks.
  5. Apr 28, 2010 #4

    Andy Resnick

    User Avatar
    Science Advisor
    Education Advisor

    Then the first step is to see what other people have tried:


    C. W. Hee, B. K. A. Ngoi, L. E. N. Lim, K. Venkatakrishnan, W. L. Liang, Effect of polarization on femtosecond pulsed laser ablation of surface relief gratings using a novel interferometer, Optics & Laser Technology, Volume 37, Issue 2, March 2005, Pages 93-98, ISSN 0030-3992, DOI: 10.1016/j.optlastec.2004.02.016.

    The effect of polarization on ultrashort pulsed laser ablation of thin metal films
    Venkatakrishnan, K. Tan, B. Stanley, P. Sivakumar, N. R.

    This paper appears in: Journal of Applied Physics
    Publication Date: Aug 2002
    Volume: 92 Issue: 3
    On page(s): 1604 - 1607
    ISSN: 0021-8979
    Digital Object Identifier: 10.1063/1.1487453
    Date of Current Version: 18 June 2009
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook