Abstract

A method of ray tracing for an aspherical lens with subwavelength periodic structured surfaces has been developed. The ray tracing in the antireflective subwavelength structure is based on the group velocity of the Bloch wave. Transmittance and phase delay for the surface structure are determined with rigorous coupled wave analysis. Calculated wavefront aberration was smaller than $20\mathrm{m}\lambda$ for an aspherical lens with numerical aperture of 0.6. For a lens with a higher numerical aperture, the wavefront aberrations increase drastically.

© 2009 Optical Society of America

Antireflective subwavelength-structured surfaces with enhanced color properties

Birgit Päivänranta, Noora Heikkilä, and Markku Kuittinen
J. Opt. Soc. Am. A 24(6) 1680-1686 (2007)

Design of highly transparent glasses with broadband antireflective subwavelength structures

Young Min Song, Hee Ju Choi, Jae Su Yu, and Yong Tak Lee
Opt. Express 18(12) 13063-13071 (2010)

Comparison between continuous and discrete subwavelength grating structures for antireflection surfaces

Eric B. Grann and M. G. Moharam
J. Opt. Soc. Am. A 13(5) 988-992 (1996)

Ray tracing kinoform lens surfaces

William H. Southwell
Appl. Opt. 31(13) 2244-2247 (1992)

Light-extraction enhancement of red AlGaInP light-emitting diodes with antireflective subwavelength structures

Y. M. Song, E. S. Choi, J. S. Yu, and Y. T. Lee
Opt. Express 17(23) 20991-20997 (2009)