Space-selective precipitation of silver nanoparticles in AG2O-doped silicate glass by irradiation of femtosecond laser

Xiongwei Jiang; Huidan Zeng; Congshan Zhu; Jianrong Qiu

doi:10.1117/12.517337

16 July 2003 Space-selective precipitation of silver nanoparticles in AG₂O doped silicate glass by irradiation of femtosecond laser

Xiongwei Jiang, Huidan Zeng, Congshan Zhu, Jianrong Qiu

Author Affiliations +

Proceedings Volume 5061, International Symposium on Photonic Glass (ISPG 2002); (2003) https://doi.org/10.1117/12.517337
Event: International Symposium on Photonic Glass, 2002, Shanghai, China

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.

Citation Download Citation

Xiongwei Jiang, Huidan Zeng, Congshan Zhu, and Jianrong Qiu "Space-selective precipitation of silver nanoparticles in AG₂O doped silicate glass by irradiation of femtosecond laser", Proc. SPIE 5061, International Symposium on Photonic Glass (ISPG 2002), (16 July 2003); https://doi.org/10.1117/12.517337

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