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https://hdl.handle.net/2440/44971
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Type: | Conference paper |
Title: | Transmission characteristics of T-ray multilayer interference filters |
Author: | Withayachumnankul, W. Fischer, B. Mickan, S. Abbott, D. |
Citation: | Photonics: Design, Technology, and Packaging III / Wieslaw Z. Krolikowski, Costas M. Soukoulis, Ping Koy Lam, Timothy J. Davis, Shanhui Fan, Yuri S. Kivshar(eds.):www1-www15 |
Publisher: | SPIE |
Publisher Place: | CDROM |
Issue Date: | 2008 |
Series/Report no.: | Proceedings of SPIE ; 6801 |
ISBN: | 9780819469724 |
ISSN: | 0277-786X 1996-756X |
Conference Name: | Photonics: Design, Technology, and Packaging III (2007 : Canberra, Australia) |
Editor: | Krolikowski, W. Soukoulis, C. Lam, P. Davis, T. Fan, S. Kivshar, Y. |
Abstract: | An optical multilayer interference filter is made from two or more different dielectric materials layered in such a way that it promotes constructive or destructive wave interference for a selected frequency in the direction normal to the layers. Usually, each layer has the thickness of a quarter of wavelength at which the stop-band is required. In this paper, a quarter-wavelength multilayer interference filter is realised for T-ray applications. The dielectric materials used are high-resistivity silicon and free space, both of which have high transparency to T-rays and flat all-pass responses over the frequencies of interest. The designed thickness of both materials is in the order of a hundred microns, and thus allows the novelty of a retrofittable assembled structure. An analysis of the affect of the number of layers on the spectral response is given for the first time. The THz-TDS measurement of the fabricated structure is demonstrated to be in agreement with theory. |
Description: | Copyright © 2008 SPIE - The International Society for Optical Engineering. |
DOI: | 10.1117/12.758811 |
Published version: | http://dx.doi.org/10.1117/12.758811 |
Appears in Collections: | Aurora harvest 6 Electrical and Electronic Engineering publications |
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