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Tracking spatial modes in nearly hemispherical microcavities

Tracking spatial modes in nearly hemispherical microcavities
Tracking spatial modes in nearly hemispherical microcavities
We measure experimentally the spatial intensity profiles and resonant frequencies of the transverse modes of nearly hemispherical microcavities with cavity length and mirror curvatures below 10 ?m. These resonators possess axially symmetric Gauss-Laguerre-like modes, but do not display the frequency degeneracies typical of large-scale optical cavities. It is possible to interpret these results using a paraxial model of cavity propagation that includes nonparabolic optical elements.
optical resonators, microstructure fabrication, micro-optical devices, metal optics
0146-9592
3131-3133
Pennington, R.C.
0ef662cb-2d98-4c01-b352-84afc182aec9
D'Alessandro, G.
bad097e1-9506-4b6e-aa56-3e67a526e83b
Baumberg, J.J.
78e1ea7e-8c70-404c-bf84-59aafe75cd07
Kaczmarek, M.
408ec59b-8dba-41c1-89d0-af846d1bf327
Pennington, R.C.
0ef662cb-2d98-4c01-b352-84afc182aec9
D'Alessandro, G.
bad097e1-9506-4b6e-aa56-3e67a526e83b
Baumberg, J.J.
78e1ea7e-8c70-404c-bf84-59aafe75cd07
Kaczmarek, M.
408ec59b-8dba-41c1-89d0-af846d1bf327

Pennington, R.C., D'Alessandro, G., Baumberg, J.J. and Kaczmarek, M. (2007) Tracking spatial modes in nearly hemispherical microcavities. Optics Letters, 32 (21), 3131-3133. (doi:10.1364/OL.32.003131).

Record type: Article

Abstract

We measure experimentally the spatial intensity profiles and resonant frequencies of the transverse modes of nearly hemispherical microcavities with cavity length and mirror curvatures below 10 ?m. These resonators possess axially symmetric Gauss-Laguerre-like modes, but do not display the frequency degeneracies typical of large-scale optical cavities. It is possible to interpret these results using a paraxial model of cavity propagation that includes nonparabolic optical elements.

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More information

Published date: 22 October 2007
Keywords: optical resonators, microstructure fabrication, micro-optical devices, metal optics

Identifiers

Local EPrints ID: 49646
URI: https://eprints.soton.ac.uk/id/eprint/49646
ISSN: 0146-9592
PURE UUID: e971559f-329d-4639-b920-adeba020c52b
ORCID for G. D'Alessandro: ORCID iD orcid.org/0000-0001-9166-9356

Catalogue record

Date deposited: 19 Nov 2007
Last modified: 20 Jul 2019 01:19

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