Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Zone-boundary optimization for direct laser writing of continuous-relief diffractive optical elements

Not Accessible

Your library or personal account may give you access

Abstract

Enhancing the diffraction efficiency of continuous-relief diffractive optical elements fabricated by direct laser writing is discussed. A new method of zone-boundary optimization is proposed to correct exposure data only in narrow areas along the boundaries of diffractive zones. The optimization decreases the loss of diffraction efficiency related to convolution of a desired phase profile with a writing-beam intensity distribution. A simplified stepped transition function that describes optimized exposure data near zone boundaries can be made universal for a wide range of zone periods. The approach permits a similar increase in the diffraction efficiency as an individual-pixel optimization but with fewer computation efforts. Computer simulations demonstrated that the zone-boundary optimization for a 6µm period grating increases the efficiency by 7% and 14.5% for 0.6µm and 1.65µm writing-spot diameters, respectively. The diffraction efficiency of as much as 65%90% for 410µm zone periods was obtained experimentally with this method.

© 2006 Optical Society of America

Full Article  |  PDF Article
More Like This
Analysis and optimization of fabrication of continuous-relief diffractive optical elements

Thomas Hessler, Markus Rossi, Rino E. Kunz, and Michael T. Gale
Appl. Opt. 37(19) 4069-4079 (1998)

Design and fabrication of diffractive microlens arrays with continuous relief for parallel laser direct writing

Jiubin Tan, Mingguang Shan, Chenguang Zhao, and Jian Liu
Appl. Opt. 47(10) 1430-1433 (2008)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (9)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (2)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved