4 October 2013 Characteristic analysis of diffractive-refractive lens in the submillimeter focal plane imaging system
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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, Wang Long, Xiang Bo, Xiang Bo, Wenbin Dou, Wenbin Dou, Hongfu Meng, Hongfu Meng, } "Characteristic analysis of diffractive-refractive lens in the submillimeter focal plane imaging system," Optical Engineering 52(10), 103106 (4 October 2013). https://doi.org/10.1117/1.OE.52.10.103106 . Submission:
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