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Proceedings Paper

Achromatic quarterwave-plate for visible spectrum region using the dispersion of form birefringence
Author(s): Deer Yi; Qiaofeng Tan; Haitao Liu; Yingbai Yan; Guofan Jin
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Paper 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.

Paper Details

Date Published: 30 August 2002
PDF: 5 pages
Proc. SPIE 4924, Holography, Diffractive Optics, and Applications, (30 August 2002); doi: 10.1117/12.481506
Show Author Affiliations
Deer Yi, Tsinghua Univ. (China)
Qiaofeng Tan, Tsinghua Univ. (China)
Haitao Liu, Tsinghua Univ. (China)
Yingbai Yan, Tsinghua Univ. (China)
Guofan Jin, Tsinghua Univ. (China)

Published in SPIE Proceedings Vol. 4924:
Holography, Diffractive Optics, and Applications
Dahsiung Hsu; Jiabi Chen; Yunlong Sheng, Editor(s)

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