Array Technology for Terahertz Imaging

被引:11
作者
Reck, Theodore [1 ]
Siles, Jose [1 ]
Jung, Cecile [1 ]
Gill, John [1 ]
Lee, Choonsup [1 ]
Chattopadhyay, Goutam [1 ]
Mehdi, Imran [1 ]
Cooper, Ken [1 ]
机构
[1] CALTECH, Jet Prop Lab, Pasadena, CA 91125 USA
来源
PASSIVE AND ACTIVE MILLIMETER-WAVE IMAGING XV | 2012年 / 8362卷
关键词
Terahertz; Imaging; Array; Silicon; Micromachining;
D O I
10.1117/12.920497
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Heterodyne terahertz (0.3 - 3THz) imaging systems are currently limited to single or a low number of pixels. Drastic improvements in imaging sensitivity and speed can be achieved by replacing single pixel systems with an array of detectors. This paper presents an array topology that is being developed at the Jet Propulsion Laboratory based on the micromachining of silicon. This technique fabricates the array's package and waveguide components by plasma etching of silicon, resulting in devices with precision surpassing that of current metal machining techniques. Using silicon increases the versatility of the packaging, enabling a variety of orientations of circuitry within the device which increases circuit density and design options. The design of a two-pixel transceiver utilizing a stacked architecture is presented that achieves a pixel spacing of 10mm. By only allowing coupling from the top and bottom of the package the design can readily be arrayed in two dimensions with a spacing of 10mm x 18mm.
引用
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页数:5
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