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27 February 2015 Highly efficient polarization control using subwavelength high contrast transmitarrays
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Proceedings Volume 9372, High Contrast Metastructures IV; 93720H (2015)
Event: SPIE OPTO, 2015, San Francisco, California, United States
We report efficient wave plates with different retardations and orientations of fast axes realized using transmitarrays composed of a periodic arrangement of amorphous silicon elliptical cylinders on glass. We show that novel polarization devices which locally rotate the polarization by different angles while preserving the wavefront can be demonstrated using such a high contrast transmitarray. We present design, fabrication and experimental characterization results for near infrared transmissive wave retarders with efficiencies in excess of 90%, and discuss the potential applications of atwill local polarization control enabled by this technology.
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Amir Arbabi, Yu Horie, Mahmood Bagheri, and Andrei Faraon "Highly efficient polarization control using subwavelength high contrast transmitarrays", Proc. SPIE 9372, High Contrast Metastructures IV, 93720H (27 February 2015);

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