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Structural Change in Au3+-Doped BK7 Glass Irradiated by Femtosecond Laser |
| DING Ting;WANG Li;ZHOU Shi-Feng;BAO Jia-Xing;QIU Jian-Rong |
| State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027 |
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| Cite this article: |
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DING Ting, WANG Li, ZHOU Shi-Feng et al 2007 Chin. Phys. Lett. 24 1372-1375 |
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Abstract We report on structural change in an Au 3+ -doped BK7 glass irradiated by an infrared femtosecond laser at 800nm. A grating structure is inscribed in the glass sample. The glass sample is then annealed at various temperatures. Structural change of the grating is observed by an optical microscope. Absorption spectra indicate that colour centres are induced after the laser irradiation, and they decrease with increasing annealing temperature. Au nanoparticles are precipitated at high temperatures (≥600°C). The mechanisms of the phenomena are discussed.
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| Keywords:
78.55.Qr
78.67.Bf
81.05.Pj
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Received: 20 November 2006
Published: 23 April 2007
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| PACS: |
78.55.Qr
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(Amorphous materials; glasses and other disordered solids)
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78.67.Bf
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(Nanocrystals, nanoparticles, and nanoclusters)
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81.05.Pj
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(Glass-based composites, vitroceramics)
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