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Proceedings Paper

Diffraction efficiency of thin film holographic beam steering devices
Author(s): Charles M. Titus; John Pouch; Hung D. Nguyen; Felix Miranda; Philip J. Bos
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Paper Abstract

Dynamic holography has been demonstrated as a method for correction aberrations in space deployable optics, and can also be used to achieve high-resolution beam steering in the same environment. In this paper we consider some of the factors affecting the efficiency of these devices. Specifically, the effect on the efficiency of a highly collimated beam from the number of discrete phase steps per period on steering resolution is also considered. We also present some results of Finite-Difference Time-Domain (FDTD) calculations of light propagating through liquid crystal blazed gratings. Liquid crystal gratings are shown to spatially modulate both phase and amplitude of propagating light.

Paper Details

Date Published: 6 November 2002
PDF: 12 pages
Proc. SPIE 4825, High-Resolution Wavefront Control: Methods, Devices, and Applications IV, (6 November 2002); doi: 10.1117/12.453891
Show Author Affiliations
Charles M. Titus, Kent State Univ. (United States)
John Pouch, NASA Glenn Research Ctr. (United States)
Hung D. Nguyen, NASA Glenn Research Ctr. (United States)
Felix Miranda, NASA Glenn Research Ctr. (United States)
Philip J. Bos, Kent State Univ. (United States)


Published in SPIE Proceedings Vol. 4825:
High-Resolution Wavefront Control: Methods, Devices, and Applications IV
John D. Gonglewski; Mikhail A. Vorontsov; Mark T. Gruneisen; Sergio R. Restaino; Robert K. Tyson, Editor(s)

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