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Updated: May 3, 2026
Fabrication of High Contrast Gratings for the Spectrum Splitting Dispersive Element in a Concentrated Photovoltaic System
Published on: July 18, 2015
Deformable silicone grating fabricated with a photo-imprinted polymer mold
Itsunari Yamada1, Junji Nishii2, Mitsunori Saito3
1Department of Electronic Systems Engineering, School of Engineering, The University of Shiga Prefecture, Hikone, Shiga 522-8533, Japan.
Abstract:
A tunable transmission grating was fabricated by molding a silicone elastomer (polydimethylsiloxane). Its optical characteristics were then evaluated during compression. For fabrication, a glass plate with a photoimprinted polymer grating film was used as a mold. Both the grating period and diffraction transmittance of the molded elastomer were functions of the compressive stress. The grating period changed from 3.02 to 2.86 μm during compressing the elastomer in the direction perpendicular to the grooves.
