Micromachined Devices for Use in Terahertz Applications

Wood, D.; Chamberlain, M.; Baragwanath, A.; Dodd, L.E.; Hill, C.K.A.; Gallant, A.J.

doi:10.4028/www.scientific.net/ast.81.20

Micromachined Devices for Use in Terahertz Applications

Wood, D.; Chamberlain, M.; Baragwanath, A.; Dodd, L.E.; Hill, C.K.A.; Gallant, A.J.

Authors

D. Wood

M. Chamberlain

A. Baragwanath

L.E. Dodd

C.K.A. Hill

Professor Andrew Gallant a.j.gallant@durham.ac.uk
Professor

Abstract

Here we present results from key aspects of our interest in using micromachined devices in the THz region. First, our early work on making filters from rods of gold-coated SU8 is described. Pass (up to 97%) and stop bands can be observed which are theoretically underpinned by both FDTD and complex band structure simulations. Second, there is a discussion of how THz radiation passes through two-dimensional periodic arrays of subwavelength apertures. In particular, the geometry of the arrays has been studied with time-domain spectroscopy. A time-of-flight model is presented which can be used to provide insight into the operation of these arrays and has implications for the optimum design of THz plasmonic sensors. Finally, we report the THz ‘super’ extraordinary transmission properties of an optimised hybrid subwavelength aperture array, surrounded by subwavelength grooves.

Citation

Wood, D., Chamberlain, M., Baragwanath, A., Dodd, L., Hill, C., & Gallant, A. (2013). Micromachined Devices for Use in Terahertz Applications. Advances in Science and Technology, 81, 20-27. https://doi.org/10.4028/www.scientific.net/ast.81.20

Journal Article Type	Article
Publication Date	Jan 1, 2013
Deposit Date	Aug 29, 2013
Publicly Available Date	Aug 28, 2014
Journal	Advances in science and technology.
Print ISSN	1662-8969
Publisher	Trans Tech Publications
Peer Reviewed	Peer Reviewed
Volume	81
Pages	20-27
DOI	https://doi.org/10.4028/www.scientific.net/ast.81.20