Abstract
Silicon-based thin-film polarizers operating in the visible and near-infraed spectral range are fabricated by electrochemical etching of bulk silicon wafers. Anisotropically etched (110) porous silicon layers exhibit a strong in-plane anisotropy of the refractive index. Stackes of alternating layers with different mean refractive indices and thicknesses act as dichroic Bragg reflectors or microcavities, respectively. Both structures have two distinct reflection and transmission bands depending on the polarization of the incident linearly polarized light. Planar polarizers are realized through the combination, in one structure, of a dichroic reflector with either a second reflector or a microcavity with different spectral responses.
© 2004 Optical Society of America
Full Article | PDF ArticleMore Like This
Nobuyuki Ishikura, Minoru Fujii, Kohei Nishida, Shinji Hayashi, and Joachim Diener
Opt. Express 16(20) 15531-15539 (2008)
N. Künzner, D. Kovalev, J. Diener, E. Gross, V. Yu. Timoshenko, G. Polisski, F. Koch, and M. Fujii
Opt. Lett. 26(16) 1265-1267 (2001)
Maxime Duris, Mohammed Guendouz, Nathalie Lorrain, Parastesh Pirasteh, Loïc Bodiou, Warda Raiah, Yannick Coffinier, Vincent Thomy, and Joël Charrier
Opt. Mater. Express 10(8) 1921-1930 (2020)