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Prism coupled terahertz waveguide sensor
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10.1063/1.1940127
/content/aip/journal/apl/86/21/10.1063/1.1940127
http://aip.metastore.ingenta.com/content/aip/journal/apl/86/21/10.1063/1.1940127
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic diagram of the experimental waveguide sensor.

Image of FIG. 2.
FIG. 2.

Relative absorption spectra of a GaAs waveguide for two different air gaps (The curve for the gap has an offset for clarity).

Image of FIG. 3.
FIG. 3.

Transmission spectra for a -thick silicon waveguide. Inset: Blocked prism scheme.

Image of FIG. 4.
FIG. 4.

Thickness dependence of resonance frequencies for Si waveguides for different orders.

Image of FIG. 5.
FIG. 5.

Frequency shift of the , 4, and 5 transverse TE mode of a -thick GaAs waveguide covered with a layer of oil. The upper trace shows the division of the two spectra where the frequency shift for the waveguide modes is obvious. In contrast there is no frequency shift for the water vapor absorption peak.

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/content/aip/journal/apl/86/21/10.1063/1.1940127
2005-05-20
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Prism coupled terahertz waveguide sensor
http://aip.metastore.ingenta.com/content/aip/journal/apl/86/21/10.1063/1.1940127
10.1063/1.1940127
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