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Large photoinduced refractive index changes in pulsed laser deposited lead germanate glass waveguides with controllable refractive index sign change

Large photoinduced refractive index changes in pulsed laser deposited lead germanate glass waveguides with controllable refractive index sign change
Large photoinduced refractive index changes in pulsed laser deposited lead germanate glass waveguides with controllable refractive index sign change
A study of the photosensitivity of lead germanate glasses grown by pulsed laser deposition is presented. Lead germanate films were grown from stoichiometric bulk targets, on borosilicate glass substrates in an oxygen atmosphere, to form optical waveguides. The films grown exhibited high absorption in the ultra violet spectral area (around 240 nm) which indicated the possibility of high photosensitivity. The photosensitivity of the materials was examined by phase mask and interferometric grating recording over a wide ultra violet spectral region (325nm-193nm) using various continuous and pulsed laser sources. Very high refractive index changes (up to 1%) have been observed along with variable sign of the refractive index change depending on the oxygen background pressure used during growth and recording intensity
Mailis, S.
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Reekie, L.
ec314137-6924-44ad-86a4-ff3f9a67c1b5
Pissadakis, S.
a91c54e0-3b8d-479f-b44e-e678bc34a277
Barrington, S.J.
bf10bec5-2c40-4470-a0ef-5bcc69282d1a
Eason, R.W.
e38684c3-d18c-41b9-a4aa-def67283b020
Mailis, S.
233e0768-3f8d-430e-8fdf-92e6f4f6a0c4
Reekie, L.
ec314137-6924-44ad-86a4-ff3f9a67c1b5
Pissadakis, S.
a91c54e0-3b8d-479f-b44e-e678bc34a277
Barrington, S.J.
bf10bec5-2c40-4470-a0ef-5bcc69282d1a
Eason, R.W.
e38684c3-d18c-41b9-a4aa-def67283b020

Mailis, S., Reekie, L., Pissadakis, S., Barrington, S.J. and Eason, R.W. (1999) Large photoinduced refractive index changes in pulsed laser deposited lead germanate glass waveguides with controllable refractive index sign change. 5th International Conference on Laser Ablation (COLA 99), Germany. 19 - 23 Jul 1999.

Record type: Conference or Workshop Item (Paper)

Abstract

A study of the photosensitivity of lead germanate glasses grown by pulsed laser deposition is presented. Lead germanate films were grown from stoichiometric bulk targets, on borosilicate glass substrates in an oxygen atmosphere, to form optical waveguides. The films grown exhibited high absorption in the ultra violet spectral area (around 240 nm) which indicated the possibility of high photosensitivity. The photosensitivity of the materials was examined by phase mask and interferometric grating recording over a wide ultra violet spectral region (325nm-193nm) using various continuous and pulsed laser sources. Very high refractive index changes (up to 1%) have been observed along with variable sign of the refractive index change depending on the oxygen background pressure used during growth and recording intensity

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More information

Published date: July 1999
Venue - Dates: 5th International Conference on Laser Ablation (COLA 99), Germany, 1999-07-19 - 1999-07-23

Identifiers

Local EPrints ID: 76544
URI: https://eprints.soton.ac.uk/id/eprint/76544
PURE UUID: 3858daf8-3d83-452f-9164-0649aeb44088
ORCID for S. Mailis: ORCID iD orcid.org/0000-0001-8100-2670
ORCID for R.W. Eason: ORCID iD orcid.org/0000-0001-9704-2204

Catalogue record

Date deposited: 11 Mar 2010
Last modified: 20 Jul 2019 01:25

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