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Two simple experimental techniques of quantitative linear dichroism analysis were developed with Jones calculus for polarization-sensitive terahertz time-domain spectroscopy. Both of them involve the optical measurements at only three angles of rotation for sample or polarizer setup. Such non-destructive evaluation techniques could be a useful addition for quality control of polymer or composite materials...
Microfabricated narrow band-pass filters were developed for terahertz spectral region. Their features were over 100% extraordinary optical transmission and invariance for the strength and peak positions on filter's illumination side, rotation angle, and incident light polarization.
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