CONTINUOUS-LEVEL PHASE-ONLY COMPUTER-GENERATED HOLOGRAM REALIZED BY DISLOCATED BINARY GRATINGS

Authors
LI M LARSSON A ERIKSSON N HAGBERG M BENGTSSON J
Citation
M. Li et al., CONTINUOUS-LEVEL PHASE-ONLY COMPUTER-GENERATED HOLOGRAM REALIZED BY DISLOCATED BINARY GRATINGS, Optics letters, 21(18), 1996, pp. 1516-1518
Citations number
8
Categorie Soggetti
Optics
Journal title
Optics letters → ACNP
ISSN journal
01469592
Volume
21
Issue
18
Year of publication
1996
Pages
1516 - 1518
Database
ISI
SICI code
0146-9592(1996)21:18<1516:CPCHRB>2.0.ZU;2-X
Abstract
It is proposed and experimentally demonstrated that a multilevel or ev en continuous-level phase-only computer generated hologram can be real ized by use of a binary (two-level) structure. The desired phase shift is invoked by introduction of a lateral dislocation of a high-frequen cy binary grating within each of the elements that constitute the holo gram. An asymmetrically distributed spot array has been generated expe rimentally,and a uniformity error of 6% and an efficiency of 42% have been measured. (C) 1996 Optical Society of America