High diffraction efficiency from one- and two-dimensional Nyquist frequency binary-phase gratings |
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Authors: | Davis Jeffrey A Slovick Brian A Tuvey C Stewart Cottrell Don M |
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Affiliation: | San Diego State University, Department of Physics, San Diego, CA 92182, USA. jdavis@sciences.sdsu.edu |
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Abstract: | We examine the diffraction properties of one- and two-dimensional binary-phase gratings encoded onto pixelated liquid crystal displays (LCDs). We find that the first-order diffracted intensity from these binary-phase patterns can reach 100% of the zero-order intensity when the period of the grating approaches the Nyquist limit of the LCD. Experimental results show excellent agreement with theoretical predictions. This is a surprising result that has a number of implications for the encoding of diffractive optical elements. |
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