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Proceedings Paper

Measuring the non-separability of optical fields
Author(s): B. Ndagano; H. Sroor; M. McLaren; C. Rosales-Guzmán; A. Forbes
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Paper Abstract

Across various areas in the optical world, there has been a growing interest in exploiting the properties of non-separable optical fields. A class of non-separable fields, known as vector modes, exhibit a coupling between the spatial and polarisation degrees of freedom that is akin of entanglement in quantum mechanics. These vector modes, however, are typically characterized using qualitative measurements which are inadequate in determining to what extent an optical field is non-separable. Here, we present tools to characterize the degree of non-separability of an arbitrary optical field, exploiting the similarities between vector modes and quantum entangled states. As an example, we use vector modes carrying orbital angular momentum to demonstrate the effectiveness of our scheme, and note that the approach can be generalized to vector modes as a whole.

Paper Details

Date Published: 27 February 2017
PDF: 4 pages
Proc. SPIE 10120, Complex Light and Optical Forces XI, 101200W (27 February 2017); doi: 10.1117/12.2254028
Show Author Affiliations
B. Ndagano, Univ. of the Witwatersrand (South Africa)
H. Sroor, Univ. of the Witwatersrand (South Africa)
M. McLaren, Univ. of the Witwatersrand (South Africa)
C. Rosales-Guzmán, Univ. of the Witwatersrand (South Africa)
A. Forbes, Univ. of the Witwatersrand (South Africa)


Published in SPIE Proceedings Vol. 10120:
Complex Light and Optical Forces XI
David L. Andrews; Enrique J. Galvez; Jesper Glückstad, Editor(s)

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