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SnO2 nanoparticles in silica: nanosized tools for femtosecond-laser machining of refractive index patterns

SnO2 nanoparticles in silica: nanosized tools for femtosecond-laser machining of refractive index patterns
SnO2 nanoparticles in silica: nanosized tools for femtosecond-laser machining of refractive index patterns
We show that SnO2 nanoclusters in silica interact with ultrashort infrared laser pulses focused inside the material generating a hydrostatic compression and photoelastic response of the surrounding glass. This effect, together with the laser-induced nanocluster amorphization, gives rise to positive or negative refractive-index changes, up to 10–2, depending on the beam-power density. This result points out a wide tuning of the refractive index patterns obtainable in silica-based optical technology.
0003-6951
1-3
Paleari, A.
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Franchina, E.
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Chiodini, N.
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Lauria, A.
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Bricchi, E.
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Kazansky, P.G.
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Paleari, A.
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Franchina, E.
290a197e-150f-4228-acda-e60063fed258
Chiodini, N.
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Lauria, A.
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Bricchi, E.
90e6f0e4-b25b-4b7e-8bb2-9d3c9f9f74b6
Kazansky, P.G.
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Paleari, A., Franchina, E., Chiodini, N., Lauria, A., Bricchi, E. and Kazansky, P.G. (2006) SnO2 nanoparticles in silica: nanosized tools for femtosecond-laser machining of refractive index patterns. Applied Physics Letters, 88 (131912), 1-3. (doi:10.1063/1.2192579).

Record type: Article

Abstract

We show that SnO2 nanoclusters in silica interact with ultrashort infrared laser pulses focused inside the material generating a hydrostatic compression and photoelastic response of the surrounding glass. This effect, together with the laser-induced nanocluster amorphization, gives rise to positive or negative refractive-index changes, up to 10–2, depending on the beam-power density. This result points out a wide tuning of the refractive index patterns obtainable in silica-based optical technology.

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Published date: 27 March 2006

Identifiers

Local EPrints ID: 46928
URI: http://eprints.soton.ac.uk/id/eprint/46928
ISSN: 0003-6951
PURE UUID: 047813cf-1789-4af2-a42a-8141825c01c1

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Date deposited: 24 Jul 2007
Last modified: 25 Jun 2021 16:32

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Contributors

Author: A. Paleari
Author: E. Franchina
Author: N. Chiodini
Author: A. Lauria
Author: E. Bricchi
Author: P.G. Kazansky

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