Real-time millimeter-wave shadowgraphy using the visible continuum from a slab of the Cs-Xe dc discharge

被引：6

作者：

Gitlin, M. S. ^{[1
]}

Tsvetkov, A. I. ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Appl Phys, Nizhnii Novgorod 603905, Russia

来源：

APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 23期

关键词：

discharges (electric); millimetre wave devices; plasma devices; GAS-DISCHARGE; TERAHERTZ; REGION;

D O I：

10.1063/1.3152285

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have demonstrated video-rate millimeter-wave (MMW) shadowgraphy using a slab of the positive column of Cs-Xe dc discharge as a two-dimensional real-time MMW sensor. MMW images were converted into visible images using the visible continuum from the plasma slab. Near-field shadow projection MMW images of amplitude and phase objects have been obtained using pulsed watt-scale 35.4 GHz radiation for object illumination. The single-frame signal-to-noise ratio was about 13 dB for an exposure time of 1 ms. Time-averaged MMW intensity could be about several mW/cm(2) in the case of video-rate imaging.

引用

页数：3