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Thallium bromide chloride (TlBrxCl1−x) crystals have been evaluated as a material used for fabrication of room temperature radiation detectors. In this study, TlBrxCl1−x crystals with various chlorine (Cl) concentrations were grown by the travelling molten zone method and the detectors were fabricated from the crystals. The optical properties of the crystals were evaluated by measuring the transmittances...
We have demonstrated a terahertz (THz) detector system which employs three terahertz photoconductive semiconductor detectors to realize a response to a wide frequency range of 0.8 to 4 THz and a mechanical 4 K GM refrigerator instead of a liquid helium container to perform practical and convenient use. Optical and electrical performance of the THz detector system was evaluated at an operation temperature...
When the polarization of terahertz (THz) light is measured with THz time-domain spectroscopy (TDS) by switching the polarization angle of THz light, it is preferable that intensities of pump and probe lights are almost constant. Pump and probe lights, which are produced through dividing a femto second (fs) laser pulses by a beam-splitter, must be correlated with orientations of THz emitter and detector...
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