Reduction of effective terahertz focal spot size by means of nested concentric parabolic reflectors

An ongoing limitation of terahertz spectroscopy is that the technique is generally limited to the study of relatively large samples of order 4 mm across due to the generally large size of the focal beam spot. We present a nested concentric parabolic reflector design which can reduce the terahertz fo...

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Bibliographic Details
Main Authors: V. A. Neumann, N. J. Laurita, LiDong Pan, N. P. Armitage
Format: Article
Language:English
Published: AIP Publishing LLC 2015-09-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.4931815