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

Research output: Contribution to journal › Article › peer-review

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
Externally published	Yes

ASJC Scopus subject areas

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

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10.1088/0022-3727/39/1/009

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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.",

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AU - Juodkazis, Saulius

AU - Gaižauskas, Eugenijus

AU - Jarutis, Vygandas

AU - Reif, Jürgen

AU - Matsuo, Shigeki

AU - Misawa, Hiroaki

PY - 2006/1/7

Y1 - 2006/1/7

N2 - 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.

AB - 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.

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

Abstract

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