Modal beam splitter: determination of the transversal components of an electromagnetic light field

Michael Mazilu; Tom Vettenburg; Martin Ploschner; Ewan Malcolm Wright; Kishan Dholakia

doi:10.1038/s41598-017-08657-9

Modal beam splitter: determination of the transversal components of an electromagnetic light field

Michael Mazilu, Tom Vettenburg, Martin Ploschner, Ewan Malcolm Wright, Kishan Dholakia

Research output: Contribution to journal › Article › peer-review

Abstract

The transversal profile of beams can always be defined as a superposition of orthogonal fields, such as optical eigenmodes.
Here, we describe a generic method to separate the individual components in a laser beam and map each mode onto its designated detector with low crosstalk. We demonstrate this with the decomposition into Laguerre-Gaussian beams and introduce a distribution over the integer numbers corresponding to the discrete orbital and radial momentum components of the light field. The method is based on determining an eigenmask filter transforming the incident optical eigenmodes to position eigenmodes enabling the detection of the state of the light field using single detectors while minimizing cross talk with respect to the set of filter masks considered.

Original language	English
Article number	9139
Number of pages	9
Journal	Scientific Reports
Volume	7
DOIs	https://doi.org/10.1038/s41598-017-08657-9
Publication status	Published - 22 Aug 2017

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Mazilu-2017-Model-beam-splitter-SciRep-9139-CC
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Final published version, 2.68 MBLicence: CC BY

Challening the Limits of Photonics: stru: Challenging the Limits of Photonics: Structured Light
Dholakia, K. (PI), Krauss, T. F. (CoI) & Samuel, I. D. W. (CoI)
EPSRC
1/06/12 → 31/05/17
Project: Standard

Code underpinning - Modal beam splitter: determination of the transversal components of an electromagnetic light field
Mazilu, M. (Creator), Vettenburg, T. (Creator), Ploschner, M. (Creator), Wright, E. M. (Creator) & Dholakia, K. (Creator), University of St Andrews, 2017
DOI: 10.17630/15d500b7-407f-4275-a0ff-07151ab5e613, https://doi.org/10.17630/15d500b7-407f-4275-a0ff-07151ab5e613
Dataset: Software

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abstract = "The transversal profile of beams can always be defined as a superposition of orthogonal fields, such as optical eigenmodes.Here, we describe a generic method to separate the individual components in a laser beam and map each mode onto its designated detector with low crosstalk. We demonstrate this with the decomposition into Laguerre-Gaussian beams and introduce a distribution over the integer numbers corresponding to the discrete orbital and radial momentum components of the light field. The method is based on determining an eigenmask filter transforming the incident optical eigenmodes to position eigenmodes enabling the detection of the state of the light field using single detectors while minimizing cross talk with respect to the set of filter masks considered. ",

author = "Michael Mazilu and Tom Vettenburg and Martin Ploschner and Wright, {Ewan Malcolm} and Kishan Dholakia",

note = "The authors acknowledge funding from the UK Engineering and Physical Sciences Research Council through grant EP/J01771X/1",

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AU - Mazilu, Michael

AU - Vettenburg, Tom

AU - Ploschner, Martin

AU - Wright, Ewan Malcolm

AU - Dholakia, Kishan

N1 - The authors acknowledge funding from the UK Engineering and Physical Sciences Research Council through grant EP/J01771X/1

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AB - The transversal profile of beams can always be defined as a superposition of orthogonal fields, such as optical eigenmodes.Here, we describe a generic method to separate the individual components in a laser beam and map each mode onto its designated detector with low crosstalk. We demonstrate this with the decomposition into Laguerre-Gaussian beams and introduce a distribution over the integer numbers corresponding to the discrete orbital and radial momentum components of the light field. The method is based on determining an eigenmask filter transforming the incident optical eigenmodes to position eigenmodes enabling the detection of the state of the light field using single detectors while minimizing cross talk with respect to the set of filter masks considered.

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ER -

Modal beam splitter: determination of the transversal components of an electromagnetic light field

Abstract

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Challening the Limits of Photonics: stru: Challenging the Limits of Photonics: Structured Light

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Code underpinning - Modal beam splitter: determination of the transversal components of an electromagnetic light field

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