Optical and polarization properties of lead germanate (cas 12435-47-1) in terahertz frequency range
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Add time:08/15/2019 Source:sciencedirect.com
We measured the absorption coefficients and extinction ratio of ferroelectric lead germanate (cas 12435-47-1) in the range of 0.2 – 1.2 THz by means of terahertz time-domain spectroscopy. We observed dramatic changes in the dichroism of the crystal induced by temperature shifts between 300 K and 493 K. We estimated the extinction ratio of lead germanate crystal-based wideband terahertz polarizers to be better than 1:105.
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