학술논문
Frequency calibration of terahertz time-domain spectrometers
Document Type
Article
Source
Journal of the Optical Society of America B: Optical Physics; July 2009, Vol. 26 Issue: 7 p1357-1362, 6p
Subject
Language
ISSN
07403224; 15208540
Abstract
We present three techniques of calibrating frequency and spectral profile measurements of terahertz time-domain spectrometers. The first utilizes the etalon effect generated by multiple reflections in thin nonabsorbing samples. The second employs a CO gas cell to provide multiple narrow absorption lines at known frequencies. The third aims to use a grating monochromator to produce an independently measured comparable spectrum.