New tunable source extends infrared spectroscopy into far infrared wavelengths. Frequency-Tunable far-infrared radiation produced by mixing of fixed-frequency far-infrared laser beam with output of frequency-tunable klystron. By sweeping klystron frequency in synchronism with video display of detector output, one obtains direct presentation of absorption-cell spectrum. Immediate applications are local oscillator for heterodyne systems and tunable source for spectroscopy.
Generating Tunable Far-Infrared Laser Sidebands
NASA Tech Briefs ; 9 , 4
1986-03-01
Miscellaneous
No indication
English
Optical Spectrum Sidebands of a Vertical-Cavity Surface-Emitting Laser
British Library Conference Proceedings | 1994
|Molecular Beam Millimeter Sidebands Fourier Transform Spectrometer (MB-MMSBFT)
British Library Online Contents | 1994
|Asymmetric Gear Noise Sidebands and Application to Planetary Gear Noise Reduction
British Library Conference Proceedings | 2005
|Asymmetric Gear Noise Sidebands and Application to Planetary Gear Noise Reduction
SAE Technical Papers | 2005
|