Nonlinear optical absorption in laser modified regions of fused silica substrates

Nonlinear optical absorption in laser modified regions of fused silica substrates

The presence of strong nonlinear absorption has been observed in laser modified fused silica. Intensity-dependent transmission measurements using 355-nm, 532-nm and 1,064-nm laser pulses were performed in pristine polished regions in fused silica substrates and in locations that were exposed to diel...

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Veröffentlicht in:Optics communications 2004-03, Vol.122 (1)
Hauptverfasser: Walser, A D, Demos, S, Etienne, M, Dorsinville, R
Format: Artikel
Sprache:eng
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ABSORPTION
BREAKDOWN
ENGINEERING
EXCITATION
LASERS
SILICA
SUBSTRATES
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creator Walser, A D
Demos, S
Etienne, M
Dorsinville, R
description The presence of strong nonlinear absorption has been observed in laser modified fused silica. Intensity-dependent transmission measurements using 355-nm, 532-nm and 1,064-nm laser pulses were performed in pristine polished regions in fused silica substrates and in locations that were exposed to dielectric breakdown. The experimental results suggest that multi-photon absorption is considerably stronger in the modified regions compared to pristine sites and is strongly dependent on the excitation wavelength.
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subjects ABSORPTION
BREAKDOWN
ENGINEERING
EXCITATION
LASERS
SILICA
SUBSTRATES
title Nonlinear optical absorption in laser modified regions of fused silica substrates
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