title: Extension of tunable far-infrared spectroscopy to 7.9THz.
abstract: We generated tunable far-infrared radiation by mixing CO(2) -laser,(15)NH(3) -laser, and microwave radiations in a W-Co metal-insulator-metal diode. We used this far-infrared radiation to measure accurately the torsion-rotation transitions of CH(3)OH in the 6-8-THz region.
authors.forename: H
authors.initials: H
authors.lastname: Odashima
authors.forename: M
authors.initials: M
authors.lastname: Tachikawa
authors.forename: L R
authors.initials: LR
authors.lastname: Zink
authors.forename: K M
authors.initials: KM
authors.lastname: Evenson