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Optical Engineering

Characteristic analysis of diffractive-refractive lens in the submillimeter focal plane imaging system
Author(s): Wang Long; Xiang Bo; Wenbin Dou; Hongfu Meng
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Paper Abstract

To reduce transmission loss and improve spatial resolution, a diffractive-refractive lens with an aperture diameter of 120 mm has been designed, fabricated, and demonstrated for the submillimeter focal plane imaging system. We analyze the lens’ characteristics, such as focal length, depth of focus, beams spot size, spatial resolution, and field of view, theoretically and experimentally. It is the first time this is used as a focusing lens in the submillimeter wave imaging system. The results show that the lens’ characteristics are identical with theoretical analysis.

Paper Details

Date Published: 4 October 2013
PDF: 11 pages
Opt. Eng. 52(10) 103106 doi: 10.1117/1.OE.52.10.103106
Published in: Optical Engineering Volume 52, Issue 10
Show Author Affiliations
Wang Long, Southeast Univ. (China)
Xiang Bo, Southeast Univ. (China)
Wenbin Dou, Southeast Univ. (China)
Hongfu Meng, Southeast Univ. (China)

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