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Calculation method of reflectance distributions for computer-generated holograms using the finite-difference time-domain method.

Authors
  • Ichikawa, Tsubasa
  • Sakamoto, Yuji
  • Subagyo, Agus
  • Sueoka, Kazuhisa
Type
Published Article
Journal
Applied Optics
Publisher
The Optical Society
Publication Date
Dec 01, 2011
Volume
50
Issue
34
Identifiers
DOI: 10.1364/AO.50.00H211
PMID: 22193010
Source
Medline
License
Unknown

Abstract

The research on reflectance distributions in computer-generated holograms (CGHs) is particularly sparse, and the textures of materials are not expressed. Thus, we propose a method for calculating reflectance distributions in CGHs that uses the finite-difference time-domain method. In this method, reflected light from an uneven surface made on a computer is analyzed by finite-difference time-domain simulation, and the reflected light distribution is applied to the CGH as an object light. We report the relations between the surface roughness of the objects and the reflectance distributions, and show that the reflectance distributions are given to CGHs by imaging simulation.

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