Paper Title:
Residual Strain Measurement of Femtosecond Laser Microexploded Glass by Nanoindentation
  Abstract

By focusing femtosecond laser pulses in the bulk of a quartz wafer, sub-surface waveguides were microexploded. The material around the femtosecond laser induced microexplosive zone was densified, which altered local refractive index. Changes in material density can take corresponding variations in nanomechanical properties, which were proved by the depth dependent modulus and hardness variations tested by nanoindentation in the area around the microexplosive zone. Changes in refractive index were correlated with residual strains along radial direction of the waveguide cross section. An equation of residual strain in such area that based on nanoindentation data was set up, so as to discover density and refractive index variations in the adjacent areas of femtosecond laser microexplosive zone indirectly.

  Info
Periodical
Key Engineering Materials (Volumes 364-366)
Edited by
Guo Fan JIN, Wing Bun LEE, Chi Fai CHEUNG and Suet TO
Pages
205-209
DOI
10.4028/www.scientific.net/KEM.364-366.205
Citation
S. Dong, Y. S. Wang, Y. Q. Yang, Y. C. Liang, T. Sun, Y. H. Wang, Z. R. Zheng, "Residual Strain Measurement of Femtosecond Laser Microexploded Glass by Nanoindentation", Key Engineering Materials, Vols. 364-366, pp. 205-209, 2008
Online since
December 2007
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Price
$32.00
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