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アクセス権	open access
URI	https://hdl.handle.net/2115/14883
タイトル	Photo-induced phenomena in GeO2 glass
著者	著者名 Terakado, Nobuaki
	e-Rad_Researcher 20002313 著者名 Tanaka, Keiji
言語	英語
キーワード	Raman-scattering
	X-ray diffraction
	Radiation effects
	Glasses
	Chalcogenides
	Laser-matter interactions
	Optical spectroscopy
	Defects
	Absorption
	Luminescence
	Photo-induced effects
	Raman spectroscopy
	Germania
	Silica
	Electron spin resonance
発行日	2006-10-01
出版者	Elsevier B.V.
収録物名	Journal of Non-Crystalline Solids
巻(号)	352(36-37)
ページ	3815-3822
抄録	Photo-induced changes in GeO2 glass have been studied in terms of its optical and structural properties. Band-gap excitation gives rise to modifications in mid-gap optical absorption and photo-luminescence spectra. It also produces electron-spin signals at g 1.995 and 2.008. Raman-scattering spectrum becomes sharper, X-ray diffraction patterns show a disappearance of a crystalline peak, and the illuminated surfaces expand. These observations can be accounted for by assuming bond transformations from rutile-like to defective quartz-like structures and/or from small to large rings. These photo-induced changes in GeO2 are discussed in comparison with those in SiO2 and GeS2.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
PISSN	0022-3093
関連情報	URI http://www.sciencedirect.com/science/journal/00223093
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1016/j.jnoncrysol.2006.06.018

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