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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 45, Iss. 12 — Apr. 20, 2006
  • pp: 2601–2606

Reduced wavelength-dependent quarter-wave plate fabricated by a multilayered subwavelength structure

Wanji Yu, Akio Mizutani, Hisao Kikuta, and Tsuyoshi Konishi  »View Author Affiliations


Applied Optics, Vol. 45, Issue 12, pp. 2601-2606 (2006)
http://dx.doi.org/10.1364/AO.45.002601


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Abstract

We developed a novel fabrication method of a reduced wavelength-dependent quarter-wave plate (QWP) based on form birefringence of a multilayered subwavelength structure. The multilayered structure was constructed by depositing a high-refractive-index thin film on a subwavelength-structured substrate with a low refractive index. The surface structure of the substrate was shallow enough to be formed by a mass replication technology. A high-refractive-index subwavelength grating was formed on ridges of the substrate by sputtering Zn2SnO4 (refractive index of 2.03 at a wavelength of 633   nm) . Moreover, since the grooves of the high-refractive-index grating were very deep and narrow, the dispersion of form birefringence suppressed the dependency of phase retardance on the wavelength of light in a limited spectral region. The phase retardance of the fabricated QWP was 89° at a 633   nm wavelength and 79° at a 785   nm wavelength.

© 2006 Optical Society of America

OCIS Codes
(050.1380) Diffraction and gratings : Binary optics
(220.4000) Optical design and fabrication : Microstructure fabrication
(230.5440) Optical devices : Polarization-selective devices

History
Original Manuscript: February 25, 2005
Revised Manuscript: August 14, 2005
Manuscript Accepted: November 21, 2005

Citation
Wanji Yu, Akio Mizutani, Hisao Kikuta, and Tsuyoshi Konishi, "Reduced wavelength-dependent quarter-wave plate fabricated by a multilayered subwavelength structure," Appl. Opt. 45, 2601-2606 (2006)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-12-2601


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References

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