Broadband THz imaging of composite materials

Colin Viegas,Byron Alderman,Firdaus A. J. K Muhammad,Peter G. Huggard,Christopher I. Duff,Robin Sloan,Jeff Powell

2016 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)（2016）

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摘要

Imaging composite materials is a challenging task due to the continual improvement in material quality and inspection demands. This paper describes a novel broadband THz noise mapping technique that performs active imaging of composite materials. The transmission measurement consists of an amplified photonic noise source to illuminate the sample and a W-band Schottky diode based radiometer to obtain the intensity profile as a function of scan position. The experimental set-up and preliminary results are presented.

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关键词

Composite material,THz,non-destructive test,photonic,W-band,radiometer,Schottky diode

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