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Interference-free superposition of nonzero order light modes : Functionalized optical landscapes

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Date
02/2011
Author
Cizmar, Tomas
Dalgarno, Heather Isla Campbell
Ashok, Praveen Cheriyan
Gunn-Moore, Frank J
Dholakia, Kishan
Keywords
Rotating flows
Optical tweezers
Photonics
Angular momentum
Coherence
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Abstract
In this paper, we utilize the incoherent superposition of nonzero order light modes. We show that this approach brings an additional degree of freedom to the generation of optical fields and notably the formation of superpositions that are otherwise unattainable through the use of refractive or diffractive optical elements and coherent or incoherent light sources. We employ this technique in two exemplary cases: first to create a field with tunable orbital angular momentum whose spatial intensity distribution remains unchanged and second to form an unusual type of "nondiffracting" light beam.
Citation
Cizmar , T , Dalgarno , H I C , Ashok , P C , Gunn-Moore , F J & Dholakia , K 2011 , ' Interference-free superposition of nonzero order light modes : Functionalized optical landscapes ' , Applied Physics Letters , vol. 98 , no. 8 , 081114 . https://doi.org/10.1063/1.3552202
Publication
Applied Physics Letters
Status
Peer reviewed
DOI
https://doi.org/10.1063/1.3552202
ISSN
0003-6951
Type
Journal article
Rights
Copyright 2011, American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters, Vol 98, Issue 8, and may be found at: http://scitation.aip.org/content/aip/journal/apl/98/8/10.1063/1.3552202
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/4345

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