Linearity calibration of amplitude and power measurements in terahertz systems and detectors.
We describe a device consisting of a set of silicon plates to be employed for calibrating the linearity of amplitude/power measurements of terahertz systems and detectors. The device is used to test a time-domain spectrometer, a pyroelectric sensor, and a Golay cell. The results demonstrate that the linearity of amplitude/power measurement cannot be assumed but must be experimentally verified.
Naftaly
Mira
M
National Physical Laboratory, Teddington, UK. mira.naftaly@npl.co.uk
Dudley
Richard
R