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Optical Materials Express

Optical Materials Express

  • Editor: David J. Hagan
  • Vol. 1, Iss. 4 — Aug. 1, 2011
  • pp: 724–731

Different refractive index change behavior in borosilicate glasses induced by 1 kHz and 250 kHz femtosecond lasers

Geng Lin, Fangfang Luo, Fei He, Qingxi Chen, Danping Chen, Ya Cheng, Long Zhang, Jianrong Qiu, and Quanzhong Zhao  »View Author Affiliations

Optical Materials Express, Vol. 1, Issue 4, pp. 724-731 (2011)

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We report on different refractive index change (RIC) behavior in borosilicate glasses induced by focused 1 kHz and 250 kHz femtosecond (fs) laser irradiation. The influence of fs laser irradiation condition and annealing temperature on RIC was examined. Absorption, electron spin resonance and Raman spectra, and transmission electron microscope were used to clarify the mechanisms of the RIC. Smaller RIC (up to 10−4) was observed after 1 kHz fs laser irradiation, while larger RIC (up to 10−1) was detected after 250 kHz fs laser irradiation, which were ascribed to the formation of color centers and precipitation of nanocrystals, respectively. The result highlights that the mechanisms of RIC induced by fs laser can be very different depending on the irradiation conditions.

© 2011 OSA

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(160.2750) Materials : Glass and other amorphous materials
(350.3390) Other areas of optics : Laser materials processing

ToC Category:
Laser Materials Processing

Original Manuscript: May 24, 2011
Revised Manuscript: July 12, 2011
Manuscript Accepted: July 17, 2011
Published: July 27, 2011

Virtual Issues
Femtosecond Direct Laser Writing and Structuring of Materials (2011) Optical Materials Express

Geng Lin, Fangfang Luo, Fei He, Qingxi Chen, Danping Chen, Ya Cheng, Long Zhang, Jianrong Qiu, and Quanzhong Zhao, "Different refractive index change behavior in borosilicate glasses induced by 1 kHz and 250 kHz femtosecond lasers," Opt. Mater. Express 1, 724-731 (2011)

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