Study of point defects created by high-intensity ultrashort pulse laser in YLF crystals

Lilia Coronato Courrol; Everson Braganca dos Santos; Ricardo Elgul Samad; Izilda Marcia Ranieri; Laercio Gomes; Anderson Zanardi de Freitas; Nilson Dias Vieira Jr.

doi:10.1117/12.588407

23 March 2005 Study of point defects created by high-intensity ultrashort pulse laser in YLF crystals

Lilia Coronato Courrol, Everson Braganca dos Santos, Ricardo Elgul Samad, Izilda Marcia Ranieri, Laercio Gomes, Anderson Zanardi de Freitas, Nilson Dias Vieira Jr.

Author Affiliations +

Proceedings Volume 5710, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications IV; (2005) https://doi.org/10.1117/12.588407
Event: Lasers and Applications in Science and Engineering, 2005, San Jose, California, United States

Abstract

In this work we report the creation of color centers in LiF and YLF crystals by high intensity, ultrashort laser pulses. We used pure and Tm³⁺ and Oxygen doped samples, all irradiated with a Ti:Sapphire CPA laser system and also with electron beam, at room temperature. In both kinds of irradiations the production of photochromic damages and color centers that have absorption bands in UV and visible range was observed. A comparison between the two kinds of irradiation was done and the involved processes are described in this paper. F₂⁺ stable centers were produced by the ultrashort laser pulses irradiation in contrast to the well-known, short lived centers produced by electron beams, and a mechanism was proposed to explain the observed stability.

Citation Download Citation

Lilia Coronato Courrol, Everson Braganca dos Santos, Ricardo Elgul Samad, Izilda Marcia Ranieri, Laercio Gomes, Anderson Zanardi de Freitas, and Nilson Dias Vieira Jr. "Study of point defects created by high-intensity ultrashort pulse laser in YLF crystals", Proc. SPIE 5710, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications IV, (23 March 2005); https://doi.org/10.1117/12.588407

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