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Proceedings Paper

Space-selective precipitation of silver nanoparticles in AG2O doped silicate glass by irradiation of femtosecond laser
Author(s): Xiongwei Jiang; Huidan Zeng; Congshan Zhu; Jianrong Qiu
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Paper Abstract

We report on the observation of space-selective precipitation of silver nanoparticles in the Ag2O doped silicate glass in a method of irradiation with an 800nm femtosecond laser and then heat-treatment. The irradiated portion of the glass first became gray in color after irradiation of the femtosecond laser and then turned into yellow after further heat-treatment at around 400 °C. An absorption peak at 402 nm observed in the absorption spectra of the irradiated and heat-treated glass indicates that silver nanoparticles have precipitated in the irradiated region of the glass. A possible mechanism has been suggested that the Ag+ ions in the region irradiated are first reduced to Ag atoms by femtosecond laser through multiphoton absorption and then accumulate to form silver nanoparticles when glass sample was heat-treated. The observed phenomenon should have potential applications in fabrication of ultrafast all-optical switch.

Paper Details

Date Published: 16 July 2003
PDF: 5 pages
Proc. SPIE 5061, International Symposium on Photonic Glass (ISPG 2002), (16 July 2003); doi: 10.1117/12.517337
Show Author Affiliations
Xiongwei Jiang, Shanghai Institute of Optics and Fine Mechanics (China)
Japan Science and Technology Corp. (Japan)
Huidan Zeng, Shanghai Institute of Optics and Fine Mechanics (China)
Japan Science and Technology Corp. (Japan)
Congshan Zhu, Shanghai Institute of Optics and Fine Mechanics (China)
Japan Science and Technology Corp. (Japan)
Jianrong Qiu, Shanghai Institute of Optics and Fine Mechanics (China)
Japan Science and Technology Corp. (Japan)


Published in SPIE Proceedings Vol. 5061:
International Symposium on Photonic Glass (ISPG 2002)
Congshan Zhu, Editor(s)

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