Structural, dielectric, and optical properties of yttrium calcium borate glasses

Autor(es)

Santos, Cristiane N. ^{[1, 2, 3]} ; Meneses, Domingos De Sousa ^{[4, 5]} ; Echegut, Patrick ^{[4, 5]} ; Neuville, Daniel R. ^[6] ; Hernandes, Antonio C. ^[3] ; Ibanez, Alain ^{[1, 2]}

Afiliação do(s) autor(es)

^[1] CNRS, Inst Neel, F-38042 Grenoble 9 - France

^[2] Univ Grenoble 1, F-38042 Grenoble 9 - France

^[3] Univ Sao Paulo, Inst Fis Sao Carlos, Grp Crescimento Cristais & Mat Ceram, BR-13560970 Sao Carlos, SP - Brazil

^[4] CNRS, CEMHTI UPR3079, F-45071 Orleans 2 - France

^[5] Univ Orleans, F-45067 Orleans 2 - France

^[6] CNRS, IPGP, F-75005 Paris - France

• Tipo de documento: Artigo Científico
• Fonte: Applied Physics Letters; v. 94, n. 15 APR 13 2009.
• Citações Web of Science: 29

Resumo

Structural and optical properties of stable glasses in the Y(2)O(3)-CaO-B(2)O(3) system, containing the same Y/Ca ratio as the YCa(4)O(BO(3))(3) (YCOB) crystal, were determined from Raman and reflectance infrared spectroscopy. Changes in optical functions with composition are associated with an increase in the number of non-bridging oxygen and to calcium/yttrium oxides content. Refractive indexes values (from 1.597 to 1.627 at lambda=2 mu m) are in good agreement with those of the YCOB crystal, an indication that these glasses are potential candidates for optical applications due to their ease of shaping as large bulk samples or fibers. (AU)

• Processo FAPESP: 04/00093-0 - Síntese e caracterização de componentes micro-ópticos bifuncionais e filmes amorfos dos sistemas RE: Y2O3 - Al2O3 - B2O3 e RE: Y2O3 - CaO - B2O3 (RE = Nd, Er, Sm) para aplicação em micro-óptica e luminescência
• Beneficiário: Cristiane Nascimento Santos
• Modalidade de apoio: Bolsas no Brasil - Doutorado