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Journal Articles Applied Physics Letters Year : 2009

Dynamics of femtosecond laser induced voidlike structures in fused silica

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Abstract

Focused ultrafast laser irradiation of fused silica usually induces a spatially modulated refractive index variation in the bulk material. Strong energy concentration leads to the localized formation of a lower-density cavitylike depressed structure surrounded by compacted matter. We report on applying time-resolved phase contrast microscopy to investigate the timescale of the void formation. We indicate a temporal behavior consistent with shock wave generation and subsequent rarefaction.
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Dates and versions

ujm-00357147 , version 1 (29-01-2009)

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Alexandre Mermillod-Blondin, Jörn Bonse, Arkadi Rosenfeld, Ingolf V. Hertel, Yuri P. Meshcheryakov, et al.. Dynamics of femtosecond laser induced voidlike structures in fused silica. Applied Physics Letters, 2009, 94 (4), pp.041911. ⟨10.1063/1.3070522⟩. ⟨ujm-00357147⟩
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