Saha, S.C., Ma, Y., Grant, J.P. , Khalid, A. and Cumming, D.R.S. (2010) Imprinted terahertz artificial dielectric quarter wave plates. Optics Express, 18(12), pp. 12168-12175. (doi: 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 mu m. 330 mu m, 280 mu m and 230 mu m deep gratings are used to obtain a pi/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.
Item Type: | Articles |
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Keywords: | Devices, fabrication, gratings, submillimeter wavelengths |
Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Saha, Dr Shimul and Ma, Mr Yong and Cumming, Professor David and Khalid, Dr Ata-Ul-Habib and Grant, Dr James |
Authors: | Saha, S.C., Ma, Y., Grant, J.P., Khalid, A., and Cumming, D.R.S. |
College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering |
Journal Name: | Optics Express |
Publisher: | Optical Society of America |
ISSN: | 1094-4087 |
ISSN (Online): | 1094-4087 |
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