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https://hdl.handle.net/2440/44747
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Type: | Conference paper |
Title: | T-ray multilayer interference filter |
Author: | Withayachumnankul, W. Fischer, B. Mickan, S. Abbott, D. |
Citation: | Joint 32nd International Conference on Infrared and Millimeter Waves, 2007 and the 2007 15th International Conference on Terahertz Electronics, IRMMW-THz:307-308 |
Publisher: | IEEE |
Publisher Place: | CDROM |
Issue Date: | 2007 |
ISBN: | 1424414393 9781424414383 |
Conference Name: | IRMMW-THz2007 (2007 : Cardiff, Wales) |
Editor: | Bob Miles, |
Abstract: | An optical multilayer interference filter is made from two or more different dielectric materials layered in such a way that it promotes constructive/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 stopband is required. In this paper, a quarter-wave 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 responses over the frequencies of interest. The designed thickness of both materials is in the order of a hundred microns. The THz-TDS measurement of the finished structure is in agreement with theory. |
DOI: | 10.1109/icimw.2007.4516511 |
Published version: | http://dx.doi.org/10.1109/icimw.2007.4516511 |
Appears in Collections: | Aurora harvest 6 Electrical and Electronic Engineering publications |
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