Simultaneous Acquisition of Spectral and Spatial Intensity Distribution

Author:

Okamoto Takayuki1,Takahashi Akinori1,Yamaguchi Ichirou1

Affiliation:

1. Optical Engineering Laboratory, Institute of Physical and Chemical Research (RIKEN), Wako, Saitama 351-01, Japan (T.O., I.Y.); and Faculty of Science, Gakushu-in University, Mejiro-ku, Tokyo, Japan (A.T.)

Abstract

A method for recording and reconstructing spectral and spatial intensity distributions of sources is described. Three-dimensional information (two for spatial and one for wavelength) of the sources is simultaneously recorded as their projected forms by an imaging system including a crossed phase grating. A modified multiplicative algebraic technique is developed to reconstruct the original distribution. In experiments we obtained nine projection patterns with equal brightness of a color slide illuminated by a tungsten lamp. The reconstructed distribution shows good agreement with that measured by interference filters.

Publisher

SAGE Publications

Subject

Spectroscopy,Instrumentation

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