Dynamics of femtosecond laser induced voidlike structures in fused silica

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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https://hal-ujm.archives-ouvertes.fr/ujm-00357147
Contributor : Razvan Stoian <>
Submitted on : Thursday, January 29, 2009 - 4:05:00 PM
Last modification on : Wednesday, July 25, 2018 - 2:05:31 PM

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

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