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9 July 2018 Development of large-diameter flat mesh-lenses for millimetre wave instrumentation
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Abstract
We present novel optics solutions based on metal mesh flat lenses which can be used to mimic a refracting lens. This approach removes the bulk of the dielectric materials (polyethylene or silicon) required for fast optical refracting systems. Additional attractive property of these lenses is that they filter out unwanted higher frequency radiation, they are easy to anti-reflection coat and they are extremely light. Measurements from 300mm diameter prototypes of both a Fresnel-type graded-index lens and a phase-delay type mesh-lens are presented.
Conference Presentation
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Giampaolo Pisano, Alexey Shitvov, Paul Moseley, Carole Tucker, Giorgio Savini, and Peter Ade "Development of large-diameter flat mesh-lenses for millimetre wave instrumentation", Proc. SPIE 10708, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX, 107080D (9 July 2018); https://doi.org/10.1117/12.2314063
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