4-CHANNEL SELF-FOCUS COMPUTER-GENERATED HOLOGRAM

Authors
REN CH ZHOU J GAO WQ
Citation
Ch. Ren et al., 4-CHANNEL SELF-FOCUS COMPUTER-GENERATED HOLOGRAM, Applied optics, 36(34), 1997, pp. 8844-8847
Citations number
4
Journal title
Applied optics → ACNP
ISSN journal
00036935
Volume
36
Issue
34
Year of publication
1997
Pages
8844 - 8847
Database
ISI
SICI code
0003-6935(1997)36:34<8844:4SCH>2.0.ZU;2-M
Abstract
A new type of computer-generated hologram (CGH) is described in this r esearch. Upon the base of a two-channel CGH, it can generate four inde pendent images in four different directions with the addition of posit ive or negative quadratic phase factors on the object spectrum; it has the character of self-focus. Results of the experiment are provided. (C) 1997 Optical Society of America.