Journal
OPTICAL MATERIALS EXPRESS
Volume 2, Issue 6, Pages 789-798Publisher
OPTICAL SOC AMER
DOI: 10.1364/OME.2.000789
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- European Commission [260103]
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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. (C)2012 Optical Society of America
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