4 October 2013 Characteristic analysis of diffractive-refractive lens in the submillimeter focal plane imaging system
Author Affiliations +
Optical Engineering, 52(10), 103106 (2013). doi:10.1117/1.OE.52.10.103106
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.
© 2013 Society of Photo-Optical Instrumentation Engineers (SPIE)
Wang Long, Xiang Bo, Wenbin Dou, Hongfu Meng, "Characteristic analysis of diffractive-refractive lens in the submillimeter focal plane imaging system," Optical Engineering 52(10), 103106 (4 October 2013). http://dx.doi.org/10.1117/1.OE.52.10.103106
JOURNAL ARTICLE
11 PAGES


SHARE
KEYWORDS
Diffraction

Imaging systems

Spatial resolution

Lens design

Gaussian beams

Optical engineering

Chemical elements

Back to Top