title: Linearity calibration of amplitude and power measurements in terahertz systems and detectors.
abstract: 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.
authors.affiliation: National Physical Laboratory, Teddington, UK. mira.naftaly@npl.co.uk
authors.forename: Mira
authors.initials: M
authors.lastname: Naftaly
authors.forename: Richard
authors.initials: R
authors.lastname: Dudley