Optical Phenomena and Processes Induced by Ultrashort Light Pulses in Chalcogenide and Chalcohalide Glassy Semiconductors - Université de Rennes Accéder directement au contenu
Article Dans Une Revue Journal of Nano and Electronic Physics Année : 2017

Optical Phenomena and Processes Induced by Ultrashort Light Pulses in Chalcogenide and Chalcohalide Glassy Semiconductors

Résumé

Time-resolved microscopy study of ablation with femtosecond laser pulses in chalcohalide glass and crystal silicon is presented. The laser pulse energy is deposited into the near-surface layer due to two-photon absorption. The superheated liquid is ejected from the ablation spot under the action of supersonic blast wave. Glass-forming process in chalcohalide glass creates optically smooth spherical surface of the crater due to the action of surface tension forces. As a result, single laser pulse produces microlens, which can be transformed into micromirrors after metal sputtering. The fabricated microoptical elements demonstrate diffraction-limited performance.

Domaines

Chimie
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Dates et versions

hal-01671250 , version 1 (22-12-2017)

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Citer

I. Blonskyi, V. Kadan, A. Rybak, S. Pavlova, Laurent Calvez, et al.. Optical Phenomena and Processes Induced by Ultrashort Light Pulses in Chalcogenide and Chalcohalide Glassy Semiconductors. Journal of Nano and Electronic Physics, 2017, 9 (5), pp.05033. ⟨10.21272/jnep.9(5).05033⟩. ⟨hal-01671250⟩
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