Parallel aligned liquid crystal on silicon display based optical set-up for the generation of polarization spatial distributions

Irene Estévez; Angel Lizana; Xuejie Zheng; Alba Peinado; Claudio Ramírez; Jose Luis Martínez; Andrés Márquez; Ignacio Moreno; Juan Campos

doi:10.1117/12.2184800

21 June 2015 Parallel aligned liquid crystal on silicon display based optical set-up for the generation of polarization spatial distributions

Irene Estévez, Angel Lizana, Xuejie Zheng, Alba Peinado, Claudio Ramírez, Jose Luis Martínez, Andrés Márquez, Ignacio Moreno, Juan Campos

Author Affiliations +

Proceedings Volume 9526, Modeling Aspects in Optical Metrology V; 95261A (2015) https://doi.org/10.1117/12.2184800
Event: SPIE Optical Metrology, 2015, Munich, Germany

Abstract

Liquid Crystals on Silicon (LCOS) displays are a type of LCDs that work in reflection. Such devices, due to the double pass that the light beam performs through the LC cells, lead to larger phase modulation than transmissive LCDs with the same thickness. By taking advantage of this modulation capability exhibited by LCOS displays, we propose a new experimental set-up which is able to provide customized state of polarization spatial distributions just by means of a single LCOS display. To this aim, a double reflection on different halves of the display is properly performed. This fact is achieved by including a compact optical system that steers the light and performs a proper polarization plane rotation.

The set-up has been experimentally implemented and some experimental concerns are discussed. The suitability of the system is provided by generating different experimental spatial distributions of polarization. In this regard, well-known polarization distributions, as axial, azimuthal or spiral linear polarization patterns are here provided. Based on the excellent results obtained, the suitability of the system to generate different spatially variant distributions of polarization is validated.

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Irene Estévez, Angel Lizana, Xuejie Zheng, Alba Peinado, Claudio Ramírez, Jose Luis Martínez, Andrés Márquez, Ignacio Moreno, and Juan Campos "Parallel aligned liquid crystal on silicon display based optical set-up for the generation of polarization spatial distributions", Proc. SPIE 9526, Modeling Aspects in Optical Metrology V, 95261A (21 June 2015); https://doi.org/10.1117/12.2184800

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