Gallant, A. J. and Kaliteevski, M. A. and Brand, S. and Wood, D. and Petty, M. and Abram, R. A. and Chamberlain, J. M. (2007) 'Terahertz frequency bandpass filters.', Journal of applied physics., 102 (2). 023102.
Abstract
The design, measurement, and analysis of a range of artificial materials for use at terahertz frequencies are described. The chosen structures consist of arrays of cylindrical gold-plated pillars with period comparable to the wavelength of incident radiation. An ultraviolet (UV) micromachining approach to the fabrication of these high aspect-ratio pillars is described using the negative epoxy-based resin SU8. Lattice fence structures are also realized using the same method. Terahertz (THz) frequency time domain spectroscopy is performed on these structures in the range 200 GHz to 3.0 THz and the relative transmission of the structures is determined. The pass and stop bands are observed with peak transmission of up to 97%. Finite difference time domain simulations and complex photonic band structure calculations are shown to provide good descriptions of the electromagnetic properties of the structures and are used to interpret the observed transmission spectra.
| Item Type: | Article |
|---|---|
| Full text: | (VoR) Version of Record Download PDF (422Kb) |
| Status: | Peer-reviewed |
| Publisher Web site: | http://dx.doi.org/10.1063/1.2756072 |
| Publisher statement: | Copyright (2007) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Gallant, A. J. and Kaliteevski, M. A. and Brand, S. and Wood, D. and Petty, M. and Abram, R. A. and Chamberlain, J. M. (2007) 'Terahertz frequency bandpass filters.', Journal of applied physics., 102 (2). 023102 and may be found at http://dx.doi.org/10.1063/1.2756072 |
| Date accepted: | No date available |
| Date deposited: | 07 December 2010 |
| Date of first online publication: | July 2007 |
| Date first made open access: | No date available |
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