Title :
Terahertz phase modulator
Author :
Kersting, R. ; Strasser, G. ; Unterrainer, K.
Author_Institution :
Dept. of Phys., Rensselaer Polytech. Inst., Troy, NY, USA
fDate :
6/22/2000 12:00:00 AM
Abstract :
A semiconductor quantum device which enables the phase modulation of terahertz signals is described. Modulation-doped parabolic quantum wells enable the electronic control of dispersion at terahertz frequencies. Device characterisation with terahertz time-domain spectroscopy shows a phase modulation for frequencies up to 4 THz
Keywords :
phase modulation; quantum well devices; submillimetre wave detectors; submillimetre wave spectroscopy; 4 THz; device characterisation; dispersion control; modulation-doped parabolic quantum wells; semiconductor quantum device; terahertz phase modulator; terahertz time-domain spectroscopy;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20000837
