RADIATION-PATTERNS OF SCALAR LIGHTPIPES

被引：9

作者：

PADMAN, R ^{[1
]}

MURPHY, JA ^{[1
]}

机构：

[1] ST PATRICKS COLL,MAYNOOTH,KILDARE,IRELAND

来源：

INFRARED PHYSICS | 1991年 / 31卷 / 05期

关键词：

D O I：

10.1016/0020-0891(91)90021-7

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

At long wavelengths, diffraction effects cause condensing lightpipes to have a significant response in directions within the geometric optics shadow zone. Here, using an analogy with the corrugated "scalar" horns often used in antenna engineering, we point out that a lightpipe with anisotropic surface impedance on its interior surfaces can have substantially reduced sidelobe levels. This may be important for measurements requiring high dynamic range, particularly in the far-infrared.

引用

页码：441 / 446

页数：6

共 8 条

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[8]

[No title captured]

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