Design and Application of Pyroelectric Terahertz Detector Based on PMNT Chip(Invited)
In view of the current research status of terahertz detectors,the advantages and disadvantages of ex-isting terahertz detectors are analyzed,and the pyroelectric materials and absorbent materials of pyroelectric tera-hertz detectors are studied.A new design and fabrication method of terahertz detectors based on PMNT chips is pro-posed.Using PMNT wafer as pyroelectric material,carbon nanotubes as absorption material,using precision thin-ning polishing technology and sputtering electrode technology,the design and manufacture of a new pyroelectric terahertz detector are completed.And using the detector designed a terahertz power meter,after testing,the power meter in 0.1～30 THz wide band,0.5～100 mW high power dynamic range,the power measurement accuracy reached±10%,the comprehensive index reached the international advanced level of similar products,the application effect is good.
PMNTterahertz detectorpyroelectric effectcarbon nanotubesterahertz power meter
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维普
