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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/6344

Title: Intra-cavity generation of superpositions of Laguerre-Gaussian beams
Authors: Naidoo, D
Aït-Ameur, K
Brunel, M
Forbes, A
Keywords: Physics
Laguerre–Gaussian modes
Laguerre–Gaussian beams
Lasers
Issue Date: 2012
Publisher: Springer Verlag
Citation: Naidoo, D, Aït-Ameur, K, Brunel, M, and Forbes, A. 2012. Intra-cavity generation of superpositions of Laguerre-Gaussian beams. Applied Physics B: Lasers and Optics, Vol. 106(3), pp 683-690
Series/Report no.: Workflow;9615
Abstract: In this paper we demonstrate experimentally the intra-cavity generation of a coherent superposition of Laguerre–Gaussian modes of zero radial order but opposite azimuthal order. The superposition is created with a simple intra-cavity stop that creates equal losses for the two azimuthal modes, and we show that by adjustment of the stop we can produce modes up to azimuthal order 8. The fact that we have a coherent superposition rather than an incoherent superposition is verified by intensity measurements, propagation measurements and a decomposition of the field by an inner product executed on a phase-only spatial light modulator. Such fields have relevance in quantum information and optical trapping.
Description: Copyright: 2011 Springer Verlag. This is the ABSTRACT ONLY. The definitive version is published in Applied Physics B: Lasers and Optics, Vol. 106(3), pp 683-690
URI: http://link.springer.com/article/10.1007%2Fs00340-011-4775-x?LI=true#page-1
http://link.springer.com/article/10.1007/s00340-011-4775-x?null#page-1
http://hdl.handle.net/10204/6344
ISSN: 0946-2171
Appears in Collections:Laser physics and technology
General science, engineering & technology

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