Otro
Production of defects in ZBLAN, ZBLAN : Tm3+ and ZBLAN : Cr3+ glasses by ultra-short pulses laser interaction
Registro en:
Journal of Physics and Chemistry of Solids. Oxford: Pergamon-Elsevier B.V. Ltd, v. 69, n. 1, p. 55-59, 2008.
0022-3697
10.1016/j.jpcs.2007.07.125
WOS:000253181000009
Autor
Courrol, Lilia C.
Messaddeq, Younes
Messaddeq, Sandra H.
Ribeiro, Sidney José Lima
Samad, Ricardo E.
de Freitas, Anderson Z.
Vieira, Nilson D.
Resumen
In this work we have studied pure and thulium- and chromium-doped ZBLAN glasses irradiated by ultra-short laser pulses. A Ti:sapphire CPA system was used, producing a 500 Hz train of pulses, centered at 830 nm, with 375 mu J of energy and 50 fs of duration (FWHM). The beam was focused by a 20 Him lens, producing a converging beam with a waist of 12 pin. The absorption spectra before and after laser irradiation were obtained showing production of color centers in pure, thulium-doped and chromium-doped ZBLAN glasses. A damage threshold of 9.56 TW/cm(2) was determined for ZBLAN. (C) 2007 Elsevier Ltd. All rights reserved.