Optical elements with subwavelength structured surfaces

Hisao Kikuta; Hiroshi Toyota; Wanji Yu; Akio Mizutani; Koichi Iwata

doi:10.1117/12.559354

8 October 2004 Optical elements with subwavelength structured surfaces

Hisao Kikuta, Hiroshi Toyota, Wanji Yu, Akio Mizutani, Koichi Iwata

Proceedings Volume 5515, Nanoengineering: Fabrication, Properties, Optics, and Devices; (2004) https://doi.org/10.1117/12.559354
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States

Abstract

Several optical elements with subwavelength structured (SWS) surfaces have been developed. The SWS has optical features of artificial refractive index, form birefringence, resonance and band-gap effects. This paper describes some applications of form birefringent optical elements and a resonant reflection element. A form-birefringent quarter-wave plate was realized by sputtering the high refractive-index thin film on a SWS substrate. The wavelength dispersion of form birefringence restrains the phase retardance from depending on the wavelength of light. An array of form-birefringent wave-plates is useful for the real-time imaging polarimetry. We developed a real-time polarization imaging system for the visible light. A guided-mode resonant grating with a PLZT wave-guide was designed for optical switches. The PLZT is ferroelectric material with an electro-optic (EO) effect. We made a feasibility study on the optical switching by numerical simulations.

Citation Download Citation

Hisao Kikuta, Hiroshi Toyota, Wanji Yu, Akio Mizutani, and Koichi Iwata "Optical elements with subwavelength structured surfaces", Proc. SPIE 5515, Nanoengineering: Fabrication, Properties, Optics, and Devices, (8 October 2004); https://doi.org/10.1117/12.559354

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