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Extraordinary stability of anisotropic femtosecond direct-written structures embedded in silica glass

Extraordinary stability of anisotropic femtosecond direct-written structures embedded in silica glass
Extraordinary stability of anisotropic femtosecond direct-written structures embedded in silica glass
In this letter we report the different response to temperature displayed by isotropic femtosecond written structures (type I_fs), and anisotropic ones (type II_fs), which are characterized by the presence of a self-assembled sub-wavelength periodic structure within the irradiated volume. We observe that the anisotropic structures display an extraordinary annealing behavior, namely, their photo induced change in refractive index increases with the annealing temperature. We explain our experimental results with a theoretical model.
0003-6951
111119-[3pp]
Bricchi, Erica
d7b5197d-d574-4276-b2a9-74e7b2427970
Kazansky, Peter G.
a5d123ec-8ea8-408c-8963-4a6d921fd76c
Bricchi, Erica
d7b5197d-d574-4276-b2a9-74e7b2427970
Kazansky, Peter G.
a5d123ec-8ea8-408c-8963-4a6d921fd76c

Bricchi, Erica and Kazansky, Peter G. (2006) Extraordinary stability of anisotropic femtosecond direct-written structures embedded in silica glass. Applied Physics Letters, 88, 111119-[3pp]. (doi:10.1063/1.2185587).

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Abstract

In this letter we report the different response to temperature displayed by isotropic femtosecond written structures (type I_fs), and anisotropic ones (type II_fs), which are characterized by the presence of a self-assembled sub-wavelength periodic structure within the irradiated volume. We observe that the anisotropic structures display an extraordinary annealing behavior, namely, their photo induced change in refractive index increases with the annealing temperature. We explain our experimental results with a theoretical model.

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Published date: 2006

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Local EPrints ID: 38968
URI: http://eprints.soton.ac.uk/id/eprint/38968
ISSN: 0003-6951
PURE UUID: d27088f8-9f5b-4afb-9150-5f09e6263582

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Date deposited: 14 Jun 2006
Last modified: 25 Nov 2019 19:23

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Author: Erica Bricchi

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