Applied Physics B

, Volume 80, Issue 2, pp 267–275

Towards a control of multiple filamentation by spatial regularization of a high-power femtosecond laser pulse

  • V.P. Kandidov
  • N. Akozbek
  • M. Scalora
  • O.G. Kosareva
  • A.V. Nyakk
  • Q. Luo
  • S.A. Hosseini
  • S.L. Chin
Article

DOI: 10.1007/s00340-004-1677-1

Cite this article as:
Kandidov, V., Akozbek, N., Scalora, M. et al. Appl. Phys. B (2005) 80: 267. doi:10.1007/s00340-004-1677-1

Abstract

We propose a new method for controlling randomly generated multiple filaments during the propagation of femtosecond laser pulses in optical media. The method is based on introducing a periodic amplitude modulation of the transverse beam profile. It is shown both experimentally and numerically that the introduction of a periodic mesh into a propagation path of a femtosecond near-infrared laser pulse leads to a deterministic spatial distribution of multiple filaments in the presence of initial random fluctuations. As a result, the number of filaments is increased as compared to the random case.

Copyright information

© Springer-Verlag 2004

Authors and Affiliations

  • V.P. Kandidov
    • 1
  • N. Akozbek
    • 2
  • M. Scalora
    • 3
  • O.G. Kosareva
    • 1
  • A.V. Nyakk
    • 1
  • Q. Luo
    • 4
  • S.A. Hosseini
    • 4
  • S.L. Chin
    • 4
  1. 1.International Laser Center, Physics DepartmentMoscow State UniversityMoscowRussia
  2. 2.Time Domain CorporationCummings Research ParkHuntsvilleUSA
  3. 3.AMSAM-WS-RD-STUS Army Aviation and Missile CommandHuntsvilleUSA
  4. 4.Departement de Physique, de Genie Physique et d’Optique and Centre d’Optique, Photonique et LaserUniversite LavalQuebecCanada

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