COURROL, LILIA C.MESSADDEQ, YOUNESMESSADDEQ, SANDRA H.RIBEIRO, SIDNEY J.L.SAMAD, RICARDO E.FREITAS, ANDERSON Z. deVIEIRA JUNIOR, NILSON D.2014-07-152014-07-302014-07-152014-07-302008COURROL, LILIA C.; MESSADDEQ, YOUNES; MESSADDEQ, SANDRA H.; RIBEIRO, SIDNEY J.L.; SAMAD, RICARDO E.; FREITAS, ANDERSON Z. de; VIEIRA JUNIOR, NILSON D. Production of defects in ZBLAN, ZBLAN:Tm3+ and ZBLAN:Cr3+ glasses by ultra-short pulses laser interaction. <b>Journal of Physics and Chemistry of Solids</b>, v. 69, p. 55-59, 2008. DOI: <a href="https://dx.doi.org/10.1016/j.jpcs.2007.07.125">10.1016/j.jpcs.2007.07.125</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/5099.0022-3697http://repositorio.ipen.br/handle/123456789/5099In 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 μJ of energy and 50 fs of duration (FWHM). The beam was focused by a 20 mm lens, producing a converging beam with a waist of 12 μm. 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 T W/cm2 was determined for ZBLAN.55-59openAccessglassfluoridescolor centerschromiumthuliumoptical propertiesradiation effectsArtigo de periódico6910.1016/j.jpcs.2007.07.125https://orcid.org/0000-0003-0092-9357https://orcid.org/0000-0002-5018-9126https://orcid.org/0000-0001-7762-8961