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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 33, Iss. 15 — Aug. 1, 2008
  • pp: 1720–1722

Angular dependence of the thermal-lens effect on Li Sr Al F 6 and Li Sr Ga F 6 single crystals

Alysson Steimacher, Otavio Akira Sakai, Antonio Carlos Bento, Mauro Luciano Baesso, Antonio N. Medina, Sandro Marcio Lima, and Tomaz Catunda  »View Author Affiliations

Optics Letters, Vol. 33, Issue 15, pp. 1720-1722 (2008)

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We apply thermal-lens (TL) spectrometry to measure the angular dependence of the TL effect on colquiriite single crystals. The experiments were performed with Li Sr Al F 6 and Li Sr Ga F 6 using a two-beam mode-mismatched configuration. The results show that it is possible to minimize the TL effect by selecting the appropriate crystal orientation. Our data also show that the anisotropy of the linear thermal expansion coefficient drives the amplitude of the TL effect, including the inversion from focusing to defocusing as the crystal orientation angle tends to the c-axis direction. The results may be useful for those working to develop a high-power laser using Li Sr Al F 6 ( : Cr ) and Li Sr Ga F 6 ( : Cr ) single crystals, allowing for optimization of the designed laser cavity.

© 2008 Optical Society of America

OCIS Codes
(140.3380) Lasers and laser optics : Laser materials
(140.6810) Lasers and laser optics : Thermal effects
(160.4670) Materials : Optical materials
(260.5950) Physical optics : Self-focusing
(300.6500) Spectroscopy : Spectroscopy, time-resolved
(350.6830) Other areas of optics : Thermal lensing

ToC Category:
Lasers and Laser Optics

Original Manuscript: April 28, 2008
Manuscript Accepted: June 5, 2008
Published: July 29, 2008

Alysson Steimacher, Otavio Akira Sakai, Antonio Carlos Bento, Mauro Luciano Baesso, Antonio N. Medina, Sandro Marcio Lima, and Tomaz Catunda, "Angular dependence of the thermal-lens effect on LiSrAlF6 and LiSrGaF6 single crystals," Opt. Lett. 33, 1720-1722 (2008)

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