Spatial state tomograph

Joel A. Carpenter; Nicolas K. Fontaine; Sergio G. Leon-Saval

doi:10.1117/12.2561830

13 December 2020 Spatial state tomograph

Joel A. Carpenter, Nicolas K. Fontaine, Sergio G. Leon-Saval

Proceedings Volume 11446, Optical and Infrared Interferometry and Imaging VII; 114462R (2020) https://doi.org/10.1117/12.2561830
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Conference Poster

Abstract

We describe the process of analysing a beam using spatial state tomography, a generalization of Stokes polarimetry to higher-dimensions. The process consists of measuring the intensity of spatial components in various spatial bases to construct a generalized Stokes vector and its corresponding density matrix. Just as for polarization, this matrix can describe coherent, partially coherent and completely incoherent states of light incoming from a telescope. As applied to the spatial properties of a beam, this density matrix quantifies the spatial amplitude and phase of each spatial state of which the beam is composed, giving the correlated wavefront phase information.

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Joel A. Carpenter, Nicolas K. Fontaine, and Sergio G. Leon-Saval "Spatial state tomograph", Proc. SPIE 11446, Optical and Infrared Interferometry and Imaging VII, 114462R (13 December 2020); https://doi.org/10.1117/12.2561830

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