Direct volume variation measurements in fused silica specimens exposed to femtosecond laser

We introduce a new method to investigate localized volume variations resulting from laser exposure. Our method is based on the measurement of fused silica cantilevers deflection from which we calculate the effective stress and density variation in laser-affected zones. Specifically, we investigate density variations in fused silica exposed to femtosecond laser exposure in the regime where nanogratings are found. We demonstrate that a volume expansion is taking place in that particular regime.


Published in:
Optical Materials Express, 2, 6, 789-798
Year:
2012
Publisher:
Optical Society of America
ISSN:
2159-3930
Laboratories:




 Record created 2015-07-20, last modified 2018-03-17


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