Share Email Print

Proceedings Paper

Multi-functional diffractive optical elements
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Diffractive optics has traditionally been used to transform a parallel beam of light into a pattern with a desired phase and intensity distribution. One of the advantages of using diffractive optics is the fact that multiple functions can be integrated into one element. Although, in theory several functions can be combined, the efficiency reduces with each added function. Also, depending on the nature of each function, feature sizes could get finer. Optical lithography with its 1 μm limit becomes inadequate for fabrication and sophisticated tools such as e-beam lithography and focused ion beam milling are required. In this paper, two different techniques of fabrication of composite elements are studied. A comparison of the beams generated in both cases is presented.

Paper Details

Date Published: 25 September 2014
PDF: 9 pages
Proc. SPIE 9194, Laser Beam Shaping XV, 91940Q (25 September 2014); doi: 10.1117/12.2067929
Show Author Affiliations
A. Vijayakumar, Indian Institute of Technology Madras (India)
Shanti Bhattacharya, Indian Institute of Technology Madras (India)

Published in SPIE Proceedings Vol. 9194:
Laser Beam Shaping XV
Andrew Forbes; Todd E. Lizotte, Editor(s)

© SPIE. Terms of Use
Back to Top