Tunable Sideband Sources
The invention of Gas Discharge [1].
Figure: Laser Sideband Source.
Figure: Laser Sideband Source. |
Figure: NH2 Rotational Transition. |
Because the frequency of the FIR gas lasers can vary with operating conditions by 1 - 5 MHz, for good
spectroscopic accuracy provision to stabilize the laser frequency is ordinarily required. A recent
example is shown in
Figure: Frequency Stabilized Laser Sideband
Source.
Figure: Frequency Stabilized Laser Sideband |
Figure: DSSD Band Head. A portion of the band head of the |
References
- A Stimulated Emission Source at 0.34 Millimeter Wave-length Nature 202, 685 (1964). Google Scholar
- Laser Action at 452, 496, and 541 µm in Optically Pumped CH3F Opt. Commun. 1, 423-426 (1970). Google Scholar
- Generation of continuously tunable laser sidebands in the submillimeter region Appl. Phys. Lett. 32, 367-369 (1978). Google Scholar
- Far-ir heterodyne radiometric measurements with quasioptical Schottky diode mixers Appl. Phys. Lett. 33, 151-154 (1978). Google Scholar
- Tunable submillimeter sources applied to the excited state rotational spectroscopy and kinetics of CH3F Appl. Phys. Lett. 35, 582-585 (1979). Google Scholar
- Generation of tunable laser sidebands in the far-infrared region J. Appl. Phys. 57, 1763-1768 (1985). Google Scholar
- A far infrared laser sideband spectrometer in the frequency region 550 - 2700 GHz Rev. Sci. Instrum. 61, 1612-1625 (1990). Google Scholar
- The Berkeley tunable far infrared laser spectrometers Rev. Sci. Instrum. 62, 1693-1700 (1991). Google Scholar
- Far Infrared Laser Magnetic Resonance Chemical and Biochemical Applications of Lasers V, (Academic, 1980). Google Scholar
- Tunable Far-Infrared Laser Spectroscopy in a Planar Supersonic Jet: The S Bending Vibrations of Ar-H35Cl Chem. Phys. Lett. 141, 289-291 (1987). Google Scholar
- Characterization of the lowest-lying P bending state of Ar-HCl by far infrared laser-Stark spectroscopy and molecular beam electric resonance J. Chem. Phys. 83, 4924-4933 (1985). Google Scholar
- Far-Infrared Laser Spectroscopy of van der Waals Bonds: A Powerful New Probe of Intermolecular Forces Acc. Chem. Res. 22, 295-300 (1989). Google Scholar