22 February 2018 Polarization analysis of diamond subwavelength gratings acting as space-variant birefringent elements
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Proceedings Volume 10539, Photonic Instrumentation Engineering V; 1053910 (2018) https://doi.org/10.1117/12.2289420
Event: SPIE OPTO, 2018, San Francisco, California, United States
Abstract
Subwavelength gratings are gratings with a period smaller than the incident wavelength. They only allow the zeroth order of diffraction, they possess form birefringence and they can be modeled as birefringent plates. In this paper, we present the first results of an experimental method designed to measure their polarization properties. The method consists in measuring the variation of the light transmitted through two linear polarizers with the subwavelength component between them for several orientations of the polarizers. In this paper, the basic principles of the method are introduced and the experimental setup is presented. Several types of components are numerically studied and the optical measurements of one component are presented.
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P. Piron, E. Vargas Catalan, M. Karlsson, "Polarization analysis of diamond subwavelength gratings acting as space-variant birefringent elements", Proc. SPIE 10539, Photonic Instrumentation Engineering V, 1053910 (22 February 2018); doi: 10.1117/12.2289420; https://doi.org/10.1117/12.2289420
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