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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 22 — Oct. 27, 2008
  • pp: 18109–18117

Non-collinear sum-frequency generation of femtosecond pulses in a micro-structured β-BaB2O4 crystal

Carolina Romero, Javier R. Vázquez de Aldana, Cruz Méndez, and Luis Roso  »View Author Affiliations

Optics Express, Vol. 16, Issue 22, pp. 18109-18117 (2008)

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Sum-frequency generation of femtosecond pulses by noncollinear phase matching in a micro-structured β-BaB2O4 crystal has been investigated. A 1D relief grating was recorded in the surface of a β-BaB2O4 crystal by direct irradiation with femtosecond pulses. Groove dimensions of 1 µm width and 200 nm depth were obtained for the recording parameters. This micro-structured crystal was used for generating ultraviolet pulses (265 nm) by noncollinear sum-frequency generation of the fundamental and the second harmonic of a Ti:Sapphire femtosecond laser system. Effective group-velocity matching between the incident pulses can be achieved for certain noncollinear processes in a compact way. The application of such device to intensity cross-correlation measurements of the second-harmonic pulse was shown.

© 2008 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(130.4310) Integrated optics : Nonlinear
(190.7220) Nonlinear optics : Upconversion
(230.4320) Optical devices : Nonlinear optical devices
(320.7110) Ultrafast optics : Ultrafast nonlinear optics

ToC Category:
Nonlinear Optics

Original Manuscript: July 7, 2008
Revised Manuscript: July 29, 2008
Manuscript Accepted: August 1, 2008
Published: October 22, 2008

Carolina Romero, Javier R. Vázquez de Aldana, Cruz Méndez, and Luis Roso, "Non-collinear sum-frequency generation of femtosecond pulses in a micro-structured β-BaB2O4 crystal," Opt. Express 16, 18109-18117 (2008)

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