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.
© 2013 Optical Society of America
Diffraction and Gratings
Original Manuscript: March 20, 2013
Manuscript Accepted: April 26, 2013
Published: June 7, 2013
Patrick R. Gill, "Odd-symmetry phase gratings produce optical nulls uniquely insensitive to wavelength and depth," Opt. Lett. 38, 2074-2076 (2013)