Applied Physics A

, Volume 95, Issue 2, pp 453–456

Atypical behaviour of the surface hardness and the elastic modulus of a phosphate glass matrix under 193 nm laser irradiation



The effect of 193 nm excimer laser radiation on the Knoop hardness and the elastic modulus of an ultra-phosphate glass is presented here. The experimental results reveal that the glass matrix undergoes a significant softening and volume dilation process for highly accumulated energy doses, where the Knoop hardness reduces by more than 15%, while following a single photon absorption rule. Further, during the early stages of the exposure a slight hardening process is observed. Finally, the elastic modulus is correlated with respect to the measured Knoop hardness.


61.80.Ba 61.82.Ms 62.20.mj 42.70.Ce 


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Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  1. 1.Institute of Electronic Structure and Laser, Foundation for Research and Technology-HellasHeraklionGreece

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