Odd-symmetry phase gratings produce optical nulls uniquely insensitive to wavelength and depth.
This Letter presents the analysis of a new class of diffractive optical element, the odd-symmetry phase grating, which creates wavelength- and depth-robust features in its near-field diffraction pattern.
Rambus Labs, Sunnyvale, California 94089, USA. pgill@rambus.com
Patrick R
PR
Gill