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UV induced refractive index changes in lead germanate glass waveguides grown by pulsed laser deposition

UV induced refractive index changes in lead germanate glass waveguides grown by pulsed laser deposition
UV induced refractive index changes in lead germanate glass waveguides grown by pulsed laser deposition
We report very large photoinduced refractive index changes Δn, of order ~10-2, in lead germanate glass waveguides grown by pulsed laser deposition. The magnitude of Δn was derived from measurements of diffraction efficiency for gratings written by exposure with 244 nm light through a phase mask, while the sign of Δn was determined from ellipsometric data. Results are shown for films grown under oxygen pressures ranging from 1 x 10-2 to 6 x 10-2 mbar.
Barrington, S.J.
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Mailis, Sakellaris
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Anderson, A.A.
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Greef, Robert
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Brocklesby, W.S.
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Rutt, Harvey
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Eason, R.W.
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Vainos, N.A.
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Grivas, Christos
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Barrington, S.J.
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Mailis, Sakellaris
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Anderson, A.A.
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Greef, Robert
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Brocklesby, W.S.
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Rutt, Harvey
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Eason, R.W.
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Vainos, N.A.
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Grivas, Christos
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Barrington, S.J., Mailis, Sakellaris, Anderson, A.A., Greef, Robert, Brocklesby, W.S., Rutt, Harvey, Eason, R.W., Vainos, N.A. and Grivas, Christos (1998) UV induced refractive index changes in lead germanate glass waveguides grown by pulsed laser deposition. Photosensitivity in Optical Waveguides and Glasses, Lake Lucerne, Lucerne, Switzerland. 13 - 18 Jul 1998.

Record type: Conference or Workshop Item (Paper)

Abstract

We report very large photoinduced refractive index changes Δn, of order ~10-2, in lead germanate glass waveguides grown by pulsed laser deposition. The magnitude of Δn was derived from measurements of diffraction efficiency for gratings written by exposure with 244 nm light through a phase mask, while the sign of Δn was determined from ellipsometric data. Results are shown for films grown under oxygen pressures ranging from 1 x 10-2 to 6 x 10-2 mbar.

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e-pub ahead of print date: 1998
Venue - Dates: Photosensitivity in Optical Waveguides and Glasses, Lake Lucerne, Lucerne, Switzerland, 1998-07-13 - 1998-07-18
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 76627
URI: http://eprints.soton.ac.uk/id/eprint/76627
PURE UUID: 28df288b-54a2-4a45-a351-3925598300b6
ORCID for Sakellaris Mailis: ORCID iD orcid.org/0000-0001-8100-2670
ORCID for W.S. Brocklesby: ORCID iD orcid.org/0000-0002-2123-6712
ORCID for R.W. Eason: ORCID iD orcid.org/0000-0001-9704-2204

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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 02:34

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Contributors

Author: S.J. Barrington
Author: Sakellaris Mailis ORCID iD
Author: A.A. Anderson
Author: Robert Greef
Author: W.S. Brocklesby ORCID iD
Author: Harvey Rutt
Author: R.W. Eason ORCID iD
Author: N.A. Vainos
Author: Christos Grivas

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