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Terahertz scanning imaging with a subwavelength plastic fiber
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10.1063/1.2816122
/content/aip/journal/apl/92/8/10.1063/1.2816122
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/8/10.1063/1.2816122
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

The measured normalized terahertz power transmission ratio at different fiber bending angles (open circles). The solid squares and the solid line are the theoretical results based on the FD-BPM (Ref. 14) simulation. The solid triangles are the terahertz power transmission ratio including fiber attenuation. Inset shows the configuration for the bending loss measurement.

Image of FIG. 2.
FIG. 2.

Schematic diagram of the testing terahertz fiber scanning imaging system with a transmission geometry. The photo shows the detailed scanning head. (b) The simulated coupling efficiency. (c) Terahertz spot size measurement after the picarin lens. Solid (dashed) line is the terahertz transmission power versus the position of sharp knife edge measured in the vertical (horizontal) direction. Measured vertical and horizontal diameters were 3.6 and , respectively.

Image of FIG. 3.
FIG. 3.

Fiber-scanning terahertz images of (a) a metal pattern with a word “peace” and a dove figure, (b) a paper-made matchbox with three matches inside, (c) a dry seahorse, and (d) two dry fishes. In (a), the yellow region is with high terahertz transmission while the dark region is with low terahertz transmission. In (b)–(d), the yellow region is with low terahertz transmission while the dark region is with high terahertz transmission.

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/content/aip/journal/apl/92/8/10.1063/1.2816122
2008-02-26
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Terahertz scanning imaging with a subwavelength plastic fiber
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/8/10.1063/1.2816122
10.1063/1.2816122
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