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Title: Spatially addressable design of gradient index structures through spatial light modulator based holographic lithography

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.
Authors:
;  [1] ; ;  [2] ;  [1] ;  [3]
  1. Department of Physics, University of North Texas, Denton, Texas 76203 (United States)
  2. Department of Electrical Engineering, University of North Texas, Denton, Texas 76203 (United States)
  3. (United States)
Publication Date:
OSTI Identifier:
22258697
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 114; Journal Issue: 21; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BEAMS; DESIGN; ENGINEERING; HOLOGRAPHY; LENSES; PROGRAMMING; REFRACTIVE INDEX; SIMULATION; VISIBLE RADIATION