Abstract
A superwide-angle coverage code-multiplexed optical scanner is presented that has the potential to provide coverage. As a proof-of-concept experiment, an angular scan range of 288° for six randomly distributed beams is demonstrated. The proposed scanner achieves its superwide coverage by exploiting a combination of phase-encoded transmission and reflection holography within an in-line hologram recording–retrieval geometry. The basic scanner unit consists of one phase-only digital mode spatial light modulator for code entry (i.e., beam scan control) and a holographic material from which we obtained what we believe is the first-of-a-kind extremely wide coverage, low component count, high speed (e.g., microsecond domain), and large aperture (e.g., diameter) scanner.
© 2004 Optical Society of America
Full Article | PDF ArticleMore Like This
Nabeel A. Riza and Muzammil A. Arain
Appl. Opt. 42(8) 1493-1502 (2003)
Nabeel A. Riza and Zahid Yaqoob
Appl. Opt. 43(13) 2703-2708 (2004)
Nabeel A. Riza and Sajjad A. Khan
Opt. Lett. 28(7) 561-563 (2003)