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. © 2013 AIP Publishing LLC.
CITATION STYLE
Ohlinger, K., Lutkenhaus, J., Arigong, B., Zhang, H., & Lin, Y. (2013). Spatially addressable design of gradient index structures through spatial light modulator based holographic lithography. Journal of Applied Physics, 114(21). https://doi.org/10.1063/1.4837635
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