期刊
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
卷 79, 期 4-6, 页码 1075-1077出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s00339-004-2634-x
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Color center generation by femtosecond laser pulses (30 fs) is observed in a fluence range below the damage threshold in an alkali-free barium borosilicate (BBS) glass, and in a thin layer of SiO2 on a fused silica substrate. The color centers are characterized spectroscopically. The optical density of the color centers in BBS glass is by two orders of magnitude higher than that in silica. A healing process with a time constant of about 30 h can be found.
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