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Achromatic quarter-wave plates using the dispersion of form birefringence

Kikuta, Hisao, Ohira, Yasushi, Iwata, Koichi·1997·Applied Optics

Abstract

We propose achromatic quarter-wave plates of a subwavelength grating structure. When the period of the grating structure is smaller than the wavelengths of the incident light, the structure is considered to be an optically anisotropic medium. The effective refractive indices strongly depend on the wavelengths, especially when the period is close to the wavelength. Using this feature, we can design a grating quarter-wave plate whose phase retardation is maintained at pi/2 for a wide wavelength range. A design method using the effective medium theory is described, and the wave plates designed were evaluated by numerical calculation with a rigorous electromagnetic grating theory. The calculation results led to the possibility of an achromatic quarter-wave plate whose retardation errors are smaller than 3 degrees for a +/-10% change in wavelength.

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Metadata

Authors
Kikuta, H., Ohira, Y., & Iwata, K.
Venue
Applied Optics
Published
1997-03-01
Volume
36
Issue
7
Pages
1566
ISSN
  • 0003-6935 (ISSN-L)
  • 1539-4522
OpenAlex
W2144485246
Cited by
170
References
0
FWCI
1.21
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Achromatic quarter-wave plates using the dispersion of form birefringence. https://app.cochat.ai/papers/10.1364/ao.36.001566
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Kikuta, H., Ohira, Y., & Iwata, K. (1997). Achromatic quarter-wave plates using the dispersion of form birefringence. Applied Optics. https://doi.org/10.1364/ao.36.001566

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