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Microcavity lasing of optically excited cadmium sulfide thin films at room temperature

Microcavity lasing of optically excited cadmium sulfide thin films at room temperature
Microcavity lasing of optically excited cadmium sulfide thin films at room temperature
We report what is believed to be the first observation of lasing of an optically pumped thin CdS film formed by laser ablation on glass. Laser action is observed at room temperature, and the emission peak is at 501 nm. X-ray diffraction shows that the polycrystalline films are of wurtzite structure and have (002) preferred orientation. Fabry–Perot laser modes are spaced 16 nm apart, indicating a cavity length of 2.9 µm. The cavity is formed by consistently self-formed microcavities within the hexagonal lattice.
0146-9592
1278-1280
Bagnall, D.M.
5d84abc8-77e5-43f7-97cb-e28533f25ef1
Ullrich, B.
d2403443-1cbb-4a67-b557-20703b28c081
Qui, X.G.
4be55f67-0344-4fcd-84eb-787af6ede7b6
Segawa, Y.
e2ad02d9-7b70-4608-86bb-1744e6ad98f3
Sakai, H.
73280558-78b2-479b-8309-d34150e8925c
Bagnall, D.M.
5d84abc8-77e5-43f7-97cb-e28533f25ef1
Ullrich, B.
d2403443-1cbb-4a67-b557-20703b28c081
Qui, X.G.
4be55f67-0344-4fcd-84eb-787af6ede7b6
Segawa, Y.
e2ad02d9-7b70-4608-86bb-1744e6ad98f3
Sakai, H.
73280558-78b2-479b-8309-d34150e8925c

Bagnall, D.M., Ullrich, B., Qui, X.G., Segawa, Y. and Sakai, H. (1999) Microcavity lasing of optically excited cadmium sulfide thin films at room temperature. Optics Letters, 24 (18), 1278-1280. (doi:10.1364/OL.24.001278).

Record type: Article

Abstract

We report what is believed to be the first observation of lasing of an optically pumped thin CdS film formed by laser ablation on glass. Laser action is observed at room temperature, and the emission peak is at 501 nm. X-ray diffraction shows that the polycrystalline films are of wurtzite structure and have (002) preferred orientation. Fabry–Perot laser modes are spaced 16 nm apart, indicating a cavity length of 2.9 µm. The cavity is formed by consistently self-formed microcavities within the hexagonal lattice.

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More information

Published date: September 1999
Organisations: Nanoelectronics and Nanotechnology

Identifiers

Local EPrints ID: 252614
URI: http://eprints.soton.ac.uk/id/eprint/252614
ISSN: 0146-9592
PURE UUID: 0be86805-5dc9-466d-9d1f-2c2e9f60fa1c

Catalogue record

Date deposited: 23 Feb 2000
Last modified: 23 Nov 2018 17:30

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