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Optics Letters

Optics Letters


  • Vol. 36, Iss. 2 — Jan. 15, 2011
  • pp: 262–264

Space-selective precipitation of Ge crystalline patterns in glasses by femtosecond laser irradiation

Geng Lin, Fangfang Luo, Fei He, Yu Teng, Wenjiang Tan, Jinhai Si, Danping Chen, Jianrong Qiu, Quanzhong Zhao, and Zhizhan Xu  »View Author Affiliations

Optics Letters, Vol. 36, Issue 2, pp. 262-264 (2011)

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Crystalline Ge was induced space selectively inside a borosilicate glass by 800 nm , 250 kHz femtosecond laser irradiation. Micro-Raman spectra and x-ray diffraction analysis confirmed that the laser-induced crystals were cubic Ge. A periodic structure consisting of Ge crystalline lines was inscribed in the glass sample by continuously moving the focal point of the laser beam. Large third-order nonlinear optical properties and ultrafast response time were observed from the crystallization region owing to highly optical nonlinearity of Ge crystals. These results may find some applications in fabrication of functional optical and photonic devices, such as optical circuits.

© 2011 Optical Society of America

OCIS Codes
(160.2750) Materials : Glass and other amorphous materials
(350.3390) Other areas of optics : Laser materials processing

ToC Category:

Original Manuscript: August 19, 2010
Manuscript Accepted: November 29, 2010
Published: January 13, 2011

Geng Lin, Fangfang Luo, Fei He, Yu Teng, Wenjiang Tan, Jinhai Si, Danping Chen, Jianrong Qiu, Quanzhong Zhao, and Zhizhan Xu, "Space-selective precipitation of Ge crystalline patterns in glasses by femtosecond laser irradiation," Opt. Lett. 36, 262-264 (2011)

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