Optical third harmonic generation during femtosecond pulse diffraction in a Bragg grating

Saulius Juodkazis, Eugenijus Gaižauskas, Vygandas Jarutis, Jürgen Reif, Shigeki Matsuo, Hiroaki Misawa

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

We report on a novel phenomenon occurring when ultrashort laser pulses are diffracted in a Bragg grating recorded in a photo-thermo-refractive glass: two intense beams at the third harmonic of the incident laser frequency appear between the direct and the diffracted laser beams. A high conversion efficiency of about 0.04% at an incident intensity of 5 × 1011 W cm -2 in a 1 mm thick grating is attributed to self-phase matching for the third harmonic generation via Cherenkov radiation from the interfering third order polarization of the incident and diffracted beams. It is assumed that this is a general phenomenon for diffraction in a volume grating.

Original languageEnglish
Pages (from-to)50-53
Number of pages4
JournalJournal of Physics D: Applied Physics
Volume39
Issue number1
DOIs
Publication statusPublished - 2006 Jan 7
Externally publishedYes

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pulse diffraction
Phase matching
Bragg gratings
Diffraction gratings
Harmonic generation
Ultrashort pulses
Conversion efficiency
Laser beams
harmonic generations
Diffraction
gratings
Polarization
Radiation
Glass
Lasers
phase matching
lasers
laser beams
harmonics
glass

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Optical third harmonic generation during femtosecond pulse diffraction in a Bragg grating. / Juodkazis, Saulius; Gaižauskas, Eugenijus; Jarutis, Vygandas; Reif, Jürgen; Matsuo, Shigeki; Misawa, Hiroaki.

In: Journal of Physics D: Applied Physics, Vol. 39, No. 1, 07.01.2006, p. 50-53.

Research output: Contribution to journalArticle

Juodkazis, Saulius ; Gaižauskas, Eugenijus ; Jarutis, Vygandas ; Reif, Jürgen ; Matsuo, Shigeki ; Misawa, Hiroaki. / Optical third harmonic generation during femtosecond pulse diffraction in a Bragg grating. In: Journal of Physics D: Applied Physics. 2006 ; Vol. 39, No. 1. pp. 50-53.
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