High diffraction efficiency from one- and two-dimensional Nyquist frequency binary-phase gratings.
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.
Davis
Jeffrey A
JA
San Diego State University, Department of Physics, San Diego, CA 92182, USA. jdavis@sciences.sdsu.edu
Slovick
Brian A
BA
Tuvey
C Stewart
CS
Cottrell
Don M
DM