Development of large-diameter flat mesh-lenses for millimetre wave instrumentation

被引：1

作者：

Pisano, Giampaolo ^{[1
]}

Shitvov, Alexey ^{[1
]}

Moseley, Paul ^{[1
]}

Tucker, Carole ^{[1
]}

Savini, Giorgio ^{[2
]}

Ade, Peter ^{[1
]}

机构：

[1] Cardiff Univ, Sch Phys & Astron, Queens Bldg, Cardiff CF24 3AA, S Glam, Wales

[2] UCL, Phys & Astron Dept, Opt Sci Lab, Gower St, London WC1E 6BT, England

来源：

MILLIMETER, SUBMILLIMETER, AND FAR-INFRARED DETECTORS AND INSTRUMENTATION FOR ASTRONOMY IX | 2018年 / 10708卷

关键词：

Cosmic Microwave Background; Optics; Polarimetry; Millimeter-wave instrumentation; METAMATERIAL; PLATE;

D O I：

10.1117/12.2314063

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

页数：12

共 11 条

[1]

Ade P. A. R., 2006, P SOC PHOTO-OPT INS, V6275

[2]

Moseley P., IEEE T ANTENNAS PROP

[3]

Moseley P., 2018, P EUCAP

[4] Dual focus polarisation splitting lens [J].