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Composition dependence of the OH-stretch-mode spectrum in lithium tantalate

✍ Scribed by B�umer, C. ;David, C. ;Betzler, K. ;Hesse, H. ;Lengyel, K. ;Kov�cs, L. ;W�hlecke, M.


Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
97 KB
Volume
201
Category
Article
ISSN
0031-8965

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We have investigated the vibrational relaxation of the OH impurity stretch mode in amorphous SiO 2. At low temperatures, a short relaxation time of ~-10-l0 s is found that varies strongly across the inhomogeneously broadened absorption line. The inhomogeneous broadening is caused by a site-dependent