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Proceedings Paper

Polarization-independent light-dispersing device based on diffractive optics
Author(s): J. Amako; E. Fujii
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Paper Abstract

We report a light-dispersing device comprised of two transmission gratings and a wave plate. The gratings split the light incident at the Bragg angle into two orthogonally polarized components. The wave plate, which is placed between the gratings, functions as a polarization converter for oblique illumination. Appropriate assembly of these optical parts results in efficient diffraction of the unpolarized light with high spectral resolution. Using coupled-wave theories and Mueller matrix analysis, we constructed a device with a grating period of 400 nm for the spectral range of 680 ± 50 nm. We verified the proposed polarization-independent light-dispersing concept from the evaluation of this device.

Paper Details

Date Published: 16 March 2015
PDF: 9 pages
Proc. SPIE 9359, Optical Components and Materials XII, 935915 (16 March 2015); doi: 10.1117/12.2074885
Show Author Affiliations
J. Amako, Toyo Univ. (Japan)
E. Fujii, Seiko Epson Corp. (Japan)

Published in SPIE Proceedings Vol. 9359:
Optical Components and Materials XII
Shibin Jiang; Michel J. F. Digonnet, Editor(s)

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