Achromatic quarterwave-plate for visible spectrum region using the dispersion of form birefringence

Deer Yi; Qiaofeng Tan; Haitao Liu; Yingbai Yan; Guofan Jin

doi:10.1117/12.481506

30 August 2002 Achromatic quarterwave-plate for visible spectrum region using the dispersion of form birefringence

Deer Yi, Qiaofeng Tan, Haitao Liu, Yingbai Yan, Guofan Jin

Proceedings Volume 4924, Holography, Diffractive Optics, and Applications; (2002) https://doi.org/10.1117/12.481506
Event: Photonics Asia, 2002, Shanghai, China

Abstract

Sub-wavelength gratings could function as polarization components, such as wave-plates and polarized beam splitters. Furthermore, gratings in resonate regime could act as achromatic wave-plate. Here, an achromatic quarter-wave plate of a submicrometer grating with sinusoidal profile is designed based on diffractive optics. Rigorous coupled wave theory (RCWT) was used to analyze the subwavelength grating made on photo-resist in ambient air. Design of a broadband form-birefringent phase retarder for 400nm to 800nm visible region is discussed. A sinusoidal sub-wavelength grating with good properties was designed. Its phase retard maintains at about 90° and maximum deviation is about 15%, which approaches normal binary waveplate.

Citation Download Citation

Deer Yi, Qiaofeng Tan, Haitao Liu, Yingbai Yan, and Guofan Jin "Achromatic quarterwave-plate for visible spectrum region using the dispersion of form birefringence", Proc. SPIE 4924, Holography, Diffractive Optics, and Applications, (30 August 2002); https://doi.org/10.1117/12.481506

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