期刊
JOURNAL OF APPLIED PHYSICS
卷 114, 期 21, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4837635
关键词
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资金
- U.S. National Science Foundation [DMR-0934157, CMMI-1109971, CMMI-1266251, ECCS-1128099]
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [1109971, 1266251] Funding Source: National Science Foundation
- Div Of Electrical, Commun & Cyber Sys
- Directorate For Engineering [1128099] Funding Source: National Science Foundation
In this paper, we present an achievable gradient refractive index in bi-continuous holographic structures that are formed through five-beam interference. We further present a theoretic approach for the realization of gradient index devices by engineering the phases of the interfering beams with a pixelated spatial light modulator. As an example, the design concept of a gradient index Luneburg lens is verified through full-wave electromagnetic simulations. These five beams with desired phases can be generated through programming gray level super-cells in a diffractive spatial light modulator. As a proof-of-concept, gradient index structures are demonstrated using synthesized and gradient phase patterns displayed in the spatial light modulator. (C) 2013 AIP Publishing LLC.
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