We report on the third-harmonic generation of femtosecond laser pulses at interfaces. We measured slabs of different types of optical glasses and demonstrated that the asymmetric intensity profile observed for a tightly focused beam can be explained by self-focusing effects.
© 2013 Optical Society of America
Original Manuscript: September 25, 2013
Revised Manuscript: October 30, 2013
Manuscript Accepted: October 31, 2013
Published: November 27, 2013
E. C. Barbano, S. C. Zílio, and L. Misoguti, "Influence of self-focusing of ultrashort laser pulses on optical third-harmonic generation at interfaces," Opt. Lett. 38, 5165-5168 (2013)