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Photosensitivity of lead germanate glass waveguides grown by pulsed laser deposition

Photosensitivity of lead germanate glass waveguides grown by pulsed laser deposition
Photosensitivity of 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 mbars (1.33 mbars = 1 Torr).
0146-9592
1751-1753
Mailis, Sakellaris
233e0768-3f8d-430e-8fdf-92e6f4f6a0c4
Anderson, Andrew A.
b7ad6a3d-3b13-4ae6-80a2-1f5052868810
Barrington, Stephen J.
8798bac0-839f-4cf3-8d85-d172fe819f2e
Brocklesby, William S.
c53ca2f6-db65-4e19-ad00-eebeb2e6de67
Greef, Robert
91063544-ed89-4738-b5f4-28a984bf5866
Rutt, Harvey N.
e09fa327-0c01-467a-9898-4e7f0cd715fc
Eason, Robert W.
e38684c3-d18c-41b9-a4aa-def67283b020
Vainos, Nikolaos A.
3288f903-d80b-4b39-9042-26106eb3f064
Grivas, Christos
7f564818-0ac0-4127-82a7-22e87ac35f1a
Mailis, Sakellaris
233e0768-3f8d-430e-8fdf-92e6f4f6a0c4
Anderson, Andrew A.
b7ad6a3d-3b13-4ae6-80a2-1f5052868810
Barrington, Stephen J.
8798bac0-839f-4cf3-8d85-d172fe819f2e
Brocklesby, William S.
c53ca2f6-db65-4e19-ad00-eebeb2e6de67
Greef, Robert
91063544-ed89-4738-b5f4-28a984bf5866
Rutt, Harvey N.
e09fa327-0c01-467a-9898-4e7f0cd715fc
Eason, Robert W.
e38684c3-d18c-41b9-a4aa-def67283b020
Vainos, Nikolaos A.
3288f903-d80b-4b39-9042-26106eb3f064
Grivas, Christos
7f564818-0ac0-4127-82a7-22e87ac35f1a

Mailis, Sakellaris, Anderson, Andrew A., Barrington, Stephen J., Brocklesby, William S., Greef, Robert, Rutt, Harvey N., Eason, Robert W., Vainos, Nikolaos A. and Grivas, Christos (1998) Photosensitivity of lead germanate glass waveguides grown by pulsed laser deposition. Optics Letters, 23 (22), 1751-1753. (doi:10.1364/OL.23.001751).

Record type: Article

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 mbars (1.33 mbars = 1 Torr).

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Published date: 1998

Identifiers

Local EPrints ID: 77853
URI: https://eprints.soton.ac.uk/id/eprint/77853
ISSN: 0146-9592
PURE UUID: 9aa9788f-8648-42bd-9e0b-30856b987dfa
ORCID for Sakellaris Mailis: ORCID iD orcid.org/0000-0001-8100-2670
ORCID for William S. Brocklesby: ORCID iD orcid.org/0000-0002-2123-6712
ORCID for Robert W. Eason: ORCID iD orcid.org/0000-0001-9704-2204

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Date deposited: 11 Mar 2010
Last modified: 26 Jul 2018 00:36

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