Abstract
We propose an iterative algorithm based on our scalar nonparaxial propagator for the design of Fourier diffractive optical elements (DOEs) having features on the order of the illumination wavelength. The simulation results show that our algorithm, using iterative Fourier transform and iterative projection, obtains higher-performance DOEs than a purely scalar paraxial design with the same order of calculation time. Upon verification with the experimental results, we find that our scalar-based design method is valid for DOEs with surprisingly small feature sizes (about half the wavelength) and diffraction angles up to about 37°.
© 2014 Optical Society of America
Full Article | PDF ArticleMore Like This
Stephen D. Mellin and Gregory P. Nordin
Opt. Express 8(13) 705-722 (2001)
Giang-Nam Nguyen, Kevin Heggarty, Philippe Gérard, Bruno Serio, and Patrick Meyrueis
Appl. Opt. 53(10) 2196-2205 (2014)
Hwi Kim, Byungchoon Yang, and Byoungho Lee
J. Opt. Soc. Am. A 21(12) 2353-2365 (2004)