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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 12 — Jun. 7, 2010
  • pp: 12168–12175

Imprinted terahertz artificial dielectric quarter wave plates

Shimul C. Saha, Yong Ma, James P. Grant, A. Khalid, and David R.S. Cumming  »View Author Affiliations


Optics Express, Vol. 18, Issue 12, pp. 12168-12175 (2010)
http://dx.doi.org/10.1364/OE.18.012168


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Abstract

We have developed low-loss polymer artificial dielectric quarter wave plates (QWP) operating at 2.6, 3.2 and 3.8 THz. The QWPs are imprinted on high density polyethylene (HDPE) using silicon masters. The grating period for the quarter wave plates is 60 µm. 330 µm, 280 μm and 230 μm deep gratings are used to obtain a π/2 phase retardance between TE and TM polarization propagating through the QWPs. High frequency structure simulator (HFSS) was used to optimize the grating depth. Since the required grating depth is high, two plates, fixed in a back-to-back configuration were used for each QWP. A maximum aspect ratio (grating height/grating width) of 6.6 was used.

© 2010 OSA

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(260.1440) Physical optics : Birefringence
(260.3090) Physical optics : Infrared, far

ToC Category:
Diffraction and Gratings

History
Original Manuscript: March 15, 2010
Revised Manuscript: May 4, 2010
Manuscript Accepted: May 4, 2010
Published: May 25, 2010

Citation
Shimul C. Saha, Yong Ma, James P. Grant, A. Khalid, and David R. S. Cumming, "Imprinted terahertz artificial dielectric quarter wave plates," Opt. Express 18, 12168-12175 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-12-12168


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