Synthesis of polarization-selective optical components with multilayer subwavelength structures

Wanji Yu; Hisao Kikuta; Tsuyoshi Konishi

doi:10.1117/12.503927

3 November 2003 Synthesis of polarization-selective optical components with multilayer subwavelength structures

Wanji Yu, Hisao Kikuta, Tsuyoshi Konishi

Proceedings Volume 5183, Lithographic and Micromachining Techniques for Optical Component Fabrication II; (2003) https://doi.org/10.1117/12.503927
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

In this presentation we propose the multi-layer subwavelength structures to realize the polarization-sensitive optical elements. The multi-layer structures are fabricated on such consideration that a periodic relief subwavelength structure (we call the base structure later) with depth D₁ is first prepared in a substrate with refractive index n₁ , then a dielectric material with a refractive index n₂ is directionally coated on it with thickness D₂ . With the above fabrication process the coated dielectric material alternatively covers on the ridges or fills in the grooves of base structure to form the multi-layer structures. The characteristics of the effective indices and the form-birefringence behaved in such structures were investigated. The form-birefringent wave plates and the blazed-binary polarization-selective diffractive optical elements for normal incidence were synthesized with the proposed structures. The optical behaviors included the phase retardation, diffraction efficiencies, and the polarization contrasts were numerically analyzed with rigorous electromagnetic algorithm. A quarter-wave plate for the operating wavelength of He-Ne laser (λ=632.8 nm) was fabricated and the significant optical performances was obtained.

Citation Download Citation

Wanji Yu, Hisao Kikuta, and Tsuyoshi Konishi "Synthesis of polarization-selective optical components with multilayer subwavelength structures", Proc. SPIE 5183, Lithographic and Micromachining Techniques for Optical Component Fabrication II, (3 November 2003); https://doi.org/10.1117/12.503927

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