Journal
OPTICS EXPRESS
Volume 21, Issue 22, Pages 26620-26630Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.21.026620
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Funding
- Army Research Office [W911NF-09-1-0539]
- Multidisciplinary University Research Initiative
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This paper presents an optical element capable of multiplexing two diffraction patterns for two orthogonal linear polarizations, based on the use of non-resonant metamaterial cross elements. The metamaterial cross elements provide unique building blocks for engineering arbitrary birefringence. As a proof-of-concept demonstration, we present the design and experimental characterization of a polarization multiplexed blazed diffraction grating and a polarization multiplexed computer-generated hologram, for the telecommunication wavelength of lambda = 1.55 mu m. A quantitative study of the polarization multiplexed grating reveals that this approach yields a very large polarization contrast ratio. The results show that metamaterials can form the basis for a versatile and compact platform useful in the design of multi-functional photonic devices. (C) 2013 Optical Society of America
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