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Enhanced THz transmission apertures through sub-wavelength annular apertures

By A.J. Gallant, J.A. Levitt, M. Kaliteevski, D. Wood, M.C. Petty, R.A. Abram, S. Brand and J.M. Chamberlain


We report on the development of a surface micromachined process for the fabrication of coaxial apertures surrounded by periodic grooves. The process uses a combination of copper electroforming and the negative epoxy based resist, SU8, as a thin flexible substrate. The device dimensions are suitable for the implementation of filters at THz frequencies, and measurements show a pass band centred around 1.5 THz. These devices could form the basis of the next generation of THz biosensors

Publisher: SPIE
Year: 2006
DOI identifier: 10.1117/12.680552
OAI identifier:

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