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Optical gain in conjugated polymer hybrid structures based on porous silicon waveguides

Optical gain in conjugated polymer hybrid structures based on porous silicon waveguides
Optical gain in conjugated polymer hybrid structures based on porous silicon waveguides
The fabrication and optical characterization of a hybrid waveguide formed by a MDMO-PPV semiconductor layer deposited on a porous silicon cladding is reported. Evidence of amplified spontaneous emission is observed when the intensity of the excitation pump pulses is higher than a certain threshold. A net gain coefficient of about 50 ± 8 cm-1 is estimated, which is similar to those reported for other PPV derivate conjugated polymers. The demonstration of positive optical gain in these hetero-structures is very promising because new photonic structures could be envisaged due to the versatility of the porous silicon cladding.
0009-2614
387-390
Lahoz, F.
9852a047-43a2-4649-a3a0-eb0322d565b3
Capuj, N.
23256f1e-f146-4a1e-923a-4e95c74e32f1
Oton, C.J.
cc559bbe-1b21-4aa7-81fc-63ba4a5a94c9
Cheylan, S.
2aaed901-8488-4a12-9d03-5f451e8381dc
Lahoz, F.
9852a047-43a2-4649-a3a0-eb0322d565b3
Capuj, N.
23256f1e-f146-4a1e-923a-4e95c74e32f1
Oton, C.J.
cc559bbe-1b21-4aa7-81fc-63ba4a5a94c9
Cheylan, S.
2aaed901-8488-4a12-9d03-5f451e8381dc

Lahoz, F., Capuj, N., Oton, C.J. and Cheylan, S. (2008) Optical gain in conjugated polymer hybrid structures based on porous silicon waveguides. Chemical Physics Letters, 463 (4-6), 387-390. (doi:10.1016/j.cplett.2008.08.084).

Record type: Article

Abstract

The fabrication and optical characterization of a hybrid waveguide formed by a MDMO-PPV semiconductor layer deposited on a porous silicon cladding is reported. Evidence of amplified spontaneous emission is observed when the intensity of the excitation pump pulses is higher than a certain threshold. A net gain coefficient of about 50 ± 8 cm-1 is estimated, which is similar to those reported for other PPV derivate conjugated polymers. The demonstration of positive optical gain in these hetero-structures is very promising because new photonic structures could be envisaged due to the versatility of the porous silicon cladding.

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Published date: 2008
Organisations: Optoelectronics Research Centre

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Local EPrints ID: 356521
URI: http://eprints.soton.ac.uk/id/eprint/356521
ISSN: 0009-2614
PURE UUID: 9dd076c9-f052-428b-a2da-3024b16ea88b

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Date deposited: 16 Sep 2013 13:40
Last modified: 08 Jan 2022 12:09

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Contributors

Author: F. Lahoz
Author: N. Capuj
Author: C.J. Oton
Author: S. Cheylan

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