Structural, dielectric, and optical properties of yttrium calcium borate glasses | INSTITUT DE PHYSIQUE DU GLOBE DE PARIS

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

Type de publication:

Journal Article

Source:

Applied Physics Letters, Volume 94, Ticket 15 (2009)

ISBN:

0003-6951

Numéro d'accès:

WOS:000265285200018

URL:

http://apl.aip.org/resource/1/applab/v94/i15/p151901_s1?isAuthorized=no

Mots-clés:

boron compounds, calcium compounds, glass, infrared spectra, Raman spectra, refractive index, UMR 7154 ; Géochimie et Cosmochimie ; borate glasses, yttrium compounds

Résumé:

Structural and optical properties of stable glasses in the Y2O3-CaO-B2O3 system, containing the same Y/Ca ratio as the YCa4O(BO3)(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.