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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 7 — Mar. 1, 2013
  • pp: 1377–1382

Design and fabrication of an achromatic infrared wave plate with Sb–Ge–Sn–S system chalcogenide glass

Itsunari Yamada, Naoto Yamashita, Toshihiko Einishi, Mitsunori Saito, Kouhei Fukumi, and Junji Nishii  »View Author Affiliations


Applied Optics, Vol. 52, Issue 7, pp. 1377-1382 (2013)
http://dx.doi.org/10.1364/AO.52.001377


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Abstract

We designed and fabricated an achromatic infrared wave plate. To examine its phase retardation characteristics, the birefringence was calculated using the effective medium theory. A wave plate with a subwavelength grating was fabricated by direct imprint lithography on a low toxic chalcogenide glass (Sb–Ge–Sn–S system) based on calculated results. As a result of imprinting onto chalcogenide glass by a glassy carbon mold, a grating with 1.63 μm depth, a fill factor of 0.7, and a 3 μm period was obtained. The phase retardation of the elements reached around 30° in the 8.5–10.5 μm wavelength range. The fabrication of the infrared wave plate is less costly compared with conventional crystalline wave plates.

© 2013 Optical Society of America

OCIS Codes
(230.4000) Optical devices : Microstructure fabrication
(260.3060) Physical optics : Infrared
(050.2065) Diffraction and gratings : Effective medium theory
(050.2555) Diffraction and gratings : Form birefringence
(050.6624) Diffraction and gratings : Subwavelength structures

ToC Category:
Diffraction and Gratings

History
Original Manuscript: October 22, 2012
Revised Manuscript: January 18, 2013
Manuscript Accepted: January 24, 2013
Published: February 22, 2013

Citation
Itsunari Yamada, Naoto Yamashita, Toshihiko Einishi, Mitsunori Saito, Kouhei Fukumi, and Junji Nishii, "Design and fabrication of an achromatic infrared wave plate with Sb–Ge–Sn–S system chalcogenide glass," Appl. Opt. 52, 1377-1382 (2013)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-52-7-1377

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