Premium
Large Photoinduced Densification in Organically Modified Germanosilicate Glasses
Author(s) -
Jang Jae Hyeok,
Kang Dong Jun,
Bae ByeongSoo
Publication year - 2004
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2004.00155.x
Subject(s) - materials science , refractive index , ultraviolet , raman spectroscopy , irradiation , optics , ultraviolet light , ultraviolet irradiation , composite material , optoelectronics , physics , nuclear physics
Organically modified germanosilicate (ORMOGSIL) glasses prepared by a sol‐gel method showed a large refractive index change on ultraviolet exposure. The large photoinduced refractive index change in the ORMOGSIL glasses is mainly due to the structural densification caused by ultraviolet irradiation. The shifts in frequency of the Raman bands measured at room temperature reveal structural densification by reduction of the average intertetrahedral bonding angle θ in the ORMOGSIL glasses. Surface relief patterns by photoinduced densification were directly inscribed on the ORMOGSIL glasses.