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Proceedings Paper

Third harmonic generation by volume Bragg grating in photo-thermo-refractive glass irradiated by IR femtosecond pulses
Author(s): Leo Siiman; Julien Lumeau; Lionel Canioni; Leonid B. Glebov
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Paper Abstract

Three conditions for non-collinear third harmonic generation by a PTR glass volume Bragg grating are demonstrated using infrared femtosecond pulse illumination. Each condition corresponds to a different angle of grating orientation. We identify the angles as corresponding to Bragg diffraction at ω, Bragg diffraction at 3ω, and a non resonant Bragg angle involving three ω photons interacting with a nonlinear grating vector. The generation of non-collinear third harmonic at each of these angles is modeled with wavevector interactions. Theoretical predictions from the wavevector equations are obtained and compared to experimental measurements. We discuss the nonlinear grating in the PTR glass grating as resulting from modulation in the nonlinear refractive index of PTR glass.

Paper Details

Date Published: 13 February 2008
PDF: 8 pages
Proc. SPIE 6875, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VII, 687510 (13 February 2008); doi: 10.1117/12.768210
Show Author Affiliations
Leo Siiman, College of Optics and Photonics, Univ. of Central Florida (United States)
Julien Lumeau, College of Optics and Photonics, Univ. of Central Florida (United States)
Lionel Canioni, Univ. of Bordeaux I (France)
Leonid B. Glebov, College of Optics and Photonics, Univ. of Central Florida (United States)


Published in SPIE Proceedings Vol. 6875:
Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VII
Peter E. Powers, Editor(s)

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