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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 12, Iss. 2 — Jan. 26, 2004
  • pp: 288–293

Color center production by femtosecond pulse laser irradiation in LiF crystals

Lilia Coronato Courrol, Ricardo Elgul Samad, Laércio Gomes, Izilda Márcia Ranieri, Sonia Licia Baldochi, Anderson Zanardi de Freitas, and Nilson Dias Vieira Junior  »View Author Affiliations

Optics Express, Vol. 12, Issue 2, pp. 288-293 (2004)

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We report the production of color centers in LiF single crystals by ultrashort high intensity laser pulses (60fs, 10 GW). An intensity threshold for color centers creation of 2 TW/cm2 was determined, which is slightly smaller than the continuum generation threshold. We could identify a large amount of F centers that gave rise to aggregates such as F2, F2+ and F3+. The proposed mechanism of formation is based on multiphoton excitation that also produce short lived F2+ centers. It is also shown that it is possible to write tracks in the LiF crystals with dimensional control.

© 2004 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:
Research Papers

Original Manuscript: December 17, 2003
Revised Manuscript: January 9, 2004
Published: January 26, 2004

Lilia Courrol, Ricardo Samad, Laércio Gomez, Izilda Ranieri, Sonia Baldochi, Anderson Zanardi de Freitas, and Nilson Vieira, "Color center production by femtosecond pulse laser irradiation in LiF crystals," Opt. Express 12, 288-293 (2004)

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