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Proceedings Paper

Phase shifting using dislocated gratings and application in computer-generated free-space and waveguide holograms
Author(s): Ming Li; Anders G. Larsson; Jorgen Bengtsson; Sigurgeir Kristjansson
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Paper Abstract

A novel scheme is proposed to introduce continuous-level phase shift using only binary (two-level) surface-relief grating- like structures. The desired phase shift is invoked by purposely dislocating the grating groove position along the direction perpendicular to the grating grooves. Based on this method, both free-space and guided-wave computer-generated holograms (CGHs) can be constructed. Design and experiments are presented in order to demonstrate the effectiveness of the proposed scheme.

Paper Details

Date Published: 15 May 1997
PDF: 5 pages
Proc. SPIE 3010, Diffractive and Holographic Device Technologies and Applications IV, (15 May 1997); doi: 10.1117/12.274424
Show Author Affiliations
Ming Li, Chalmers Univ. of Technology (Sweden)
Anders G. Larsson, Chalmers Univ. of Technology (Sweden)
Jorgen Bengtsson, Chalmers Univ. of Technology (Sweden)
Sigurgeir Kristjansson, Chalmers Univ. of Technology (Sweden)


Published in SPIE Proceedings Vol. 3010:
Diffractive and Holographic Device Technologies and Applications IV
Ivan Cindrich; Sing H. Lee, Editor(s)

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