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

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

doi:10.1088/0022-3727/39/1/009

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

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

Department of Mechanical Engineering

Research output: Contribution to journal › Article

14 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 language	English
Pages (from-to)	50-53
Number of pages	4
Journal	Journal of Physics D: Applied Physics
Volume	39
Issue number	1
DOIs	https://doi.org/10.1088/0022-3727/39/1/009
Publication status	Published - 2006 Jan 7

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ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Acoustics and Ultrasonics
Surfaces, Coatings and Films

Cite this

Juodkazis, S., Gaižauskas, E., Jarutis, V., Reif, J., Matsuo, S., & Misawa, H. (2006). Optical third harmonic generation during femtosecond pulse diffraction in a Bragg grating. Journal of Physics D: Applied Physics, 39(1), 50-53. https://doi.org/10.1088/0022-3727/39/1/009

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AU - Misawa, Hiroaki

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10.1088/0022-3727/39/1/009