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Combined effects of polarization and non-paraxial propagation on pattern formation

Combined effects of polarization and non-paraxial propagation on pattern formation
Combined effects of polarization and non-paraxial propagation on pattern formation
We show analytically that the presence inside an optical cavity of a polarizer and a hard diffracting object, for example, a circular aperture or waveguide, reduces the symmetry of the system from cylindrical to rectangular. As a consequence, patterns with concentric rings of bright or dark spots made up by modes whose azimuthal indexes are not multiples of one another, appear when the zero-field solution becomes unstable. These types of bifurcations are anomalous if the symmetry is cylindrical and therefore indicate the presence of polarization effects induced by diffraction. As an example of this type of system, we investigate numerically the bifurcations of a ring laser with a metallic duct and a polarizer inside the optical cavity.
1050-2947
648-662
Papoff, F.
1c4e9e0a-8210-49b3-86e2-1d0323b21268
D’Alessandro, G.
bad097e1-9506-4b6e-aa56-3e67a526e83b
Oppo, G.-L.
2ea5ad15-e5f5-453b-94ad-2a2101b22144
Papoff, F.
1c4e9e0a-8210-49b3-86e2-1d0323b21268
D’Alessandro, G.
bad097e1-9506-4b6e-aa56-3e67a526e83b
Oppo, G.-L.
2ea5ad15-e5f5-453b-94ad-2a2101b22144

Papoff, F., D’Alessandro, G. and Oppo, G.-L. (1999) Combined effects of polarization and non-paraxial propagation on pattern formation. Physical Review A, 60 (1), 648-662. (doi:10.1103/PhysRevA.60.648).

Record type: Article

Abstract

We show analytically that the presence inside an optical cavity of a polarizer and a hard diffracting object, for example, a circular aperture or waveguide, reduces the symmetry of the system from cylindrical to rectangular. As a consequence, patterns with concentric rings of bright or dark spots made up by modes whose azimuthal indexes are not multiples of one another, appear when the zero-field solution becomes unstable. These types of bifurcations are anomalous if the symmetry is cylindrical and therefore indicate the presence of polarization effects induced by diffraction. As an example of this type of system, we investigate numerically the bifurcations of a ring laser with a metallic duct and a polarizer inside the optical cavity.

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Published date: 1999

Identifiers

Local EPrints ID: 29300
URI: http://eprints.soton.ac.uk/id/eprint/29300
ISSN: 1050-2947
PURE UUID: 4858dc3d-be29-42e2-b1bb-bfd1294a94c8
ORCID for G. D’Alessandro: ORCID iD orcid.org/0000-0001-9166-9356

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Date deposited: 03 Jan 2007
Last modified: 08 Jan 2022 02:41

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Contributors

Author: F. Papoff
Author: G.-L. Oppo

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