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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 14 — Jul. 9, 2007
  • pp: 8938–8942

Color center conversion by femtosecond pulse laser irradiation in LiF:F2 crystals

Guanghua Cheng, Yishan Wang, JunFang He, Guofu Chen, and Wei Zhao  »View Author Affiliations


Optics Express, Vol. 15, Issue 14, pp. 8938-8942 (2007)
http://dx.doi.org/10.1364/OE.15.008938


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Abstract

We report the observation of intense spontaneous emission of green light from LiF:F2:F3+ centers in active channel waveguides generated in lithium fluoride crystals by near-infrared femtosecond laser radiation. While irradiating the crystal at room temperature with 405 nm light from a laser diode, yellow and green emission was seen by the naked eye. Stripe waveguides were fabricated by translating the crystal along the irradiated laser pulse, and their guiding properties and fluorescence spectra at 540 nm demonstrated. This single-step process inducing a waveguide structure offers a good prospect for the development of a waveguide laser in bulk LiF crystals.

© 2007 Optical Society of America

OCIS Codes
(140.3330) Lasers and laser optics : Laser damage
(140.3380) Lasers and laser optics : Laser materials
(230.7370) Optical devices : Waveguides
(320.2250) Ultrafast optics : Femtosecond phenomena

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: April 17, 2007
Revised Manuscript: June 14, 2007
Manuscript Accepted: June 14, 2007
Published: July 3, 2007

Citation
Guanghua Cheng, Yishan Wang, Junfang He, Guofu Chen, and Wei Zhao, "Color center conversion by femtosecond pulse laser irradiation in LiF:F2 crystals," Opt. Express 15, 8938-8942 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-14-8938


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References

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