Applied Physics B

, Volume 99, Issue 1, pp 235–239

Multiple refocusing characterization and critical power measurement using third harmonic generation at interface

Article

DOI: 10.1007/s00340-009-3822-3

Cite this article as:
Liang, F., Sun, Q., Vallée, R. et al. Appl. Phys. B (2010) 99: 235. doi:10.1007/s00340-009-3822-3

Abstract

We have studied multiple refocusing in fused silica and measured the critical power for self-focusing using third harmonic generation at an air/glass interface. The third harmonic energy as a function of geometrical focal position obtained at different input energies provides much information, such as the critical power for self-focusing, intensity clamping during filamentation, and evolution of multiple refocusing filaments.

PACS

42.65.Ky42.70.Ce52.38.Hb

Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  1. 1.Centre d’Optique, Photonique et Laser (COPL) and Département de Physique, de Génie Physique et d’OptiqueUniversité LavalVille de QuébecCanada