公开(公告)号：US20180216994A1

公开(公告)日：2018-08-02

申请号：US15121520

申请日：2014-04-30

Applicant: Zhiyong TAN ,  Juncheng CAO ,  Li GU ,  Yonghao ZHU

Inventor： Zhiyong TAN ,  Juncheng CAO ,  Li GU ,  Yonghao ZHU

IPC: G01J1/42 ,  G01J1/08 ,  G01J3/42

CPC classification number: G01J1/4257 ,  G01J1/08 ,  G01J1/4228 ,  G01J3/42 ,  G01J2001/083

Abstract: A calibration method for an absolute responsivity of a terahertz quantum well detector and a calibration device thereof, in which the device at least comprises: a driving power supply, a single frequency laser source, an optic, a terahertz array detector, a terahertz dynamometer, a current amplifier and an oscilloscope. The calibration method adopts a power detectable single frequency laser source as a calibration photosource, to obtain the absolute responsivity parameters of the detector at the laser frequency; a normalized photocurrent spectrum of the detector is used to further calculate the absolute responsivity parameters of the detector at any detectable frequency. the single frequency laser source with periodically output is adopted as a calibration photosource, the terahertz array detector and the dynamometer are adopted to directly measure and obtain the incident power of the calibrated detector.