Designing diffractive optical elements with subwavelength features as a uniform beam shaper

Di Feng; Yingbai Yan; Haitao Liu; Guofan Jin

doi:10.1117/12.505190

3 November 2003 Designing diffractive optical elements with subwavelength features as an uniform beam shaper

Di Feng, Yingbai Yan, Haitao Liu, Guofan Jin

Proceedings Volume 5175, Laser Beam Shaping IV; (2003) https://doi.org/10.1117/12.505190
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

An aperiodic two-dimensional diffractive optical element (DOE) with subwavelength features as an uniform beam shaper which shapes an input laser beam into an uniform intensity distribution in an observation plane has been designed. A rigorous design method combined an iterative optimization algorithm with a rigorous electromagnetic computation -- the finite-difference time-domain (FDTD) method has been proposed. The design method and the FDTD method have been discussed in detail. The simulated results have shown that the DOE designed by this rigorous method can produce an uniform field distribution with flat-top, steep edge and low profile error in an observation plane.

Citation Download Citation

Di Feng, Yingbai Yan, Haitao Liu, and Guofan Jin "Designing diffractive optical elements with subwavelength features as an uniform beam shaper", Proc. SPIE 5175, Laser Beam Shaping IV, (3 November 2003); https://doi.org/10.1117/12.505190

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available