Abstract
A far-infrared laser cavity designed to favor short-wavelength laser lines was used to generate optically-pumped far-infrared laser radiation. New far-infrared laser lines were discovered in hydrazine, heavy water, ammonia, and several short-wavelength lines previously discovered in methanol were observed. Wavelength, frequency, and relative intensity measurements were performed on laser lines in the wavelength range 42.4 to 253.7 μm. Each far-infrared frequency measurement was obtained by mixing the far-infrared radiation with radiation from two reference CO2 lasers and from a microwave synthesizer in a metal-insulator-metal diode. The pump laser was a high-Q Fabry Perot resonator oscillating on 275 grating-selected laser lines including regular, sequence, and hot band lines.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
REFERENCES
E. C. C. Vasconcellos, S. C. Zerbetto, L. R. Zink, and K. M. Evenson, “Hydrazine-an excellent optically pumped far-infrared lasing gas: a review,” J. Opt. Soc. Am. B15, 1839–1849 (1998).
S. C. Zerbetto and E. C. C. Vasconcellos, “Far-Infrared Laser Lines produced by Methanol and its Isotopic Species: A Review”, Int. J. IR and MM Waves 15, 889–933 (1994).
D. Pereira, J. C. S. Moraes, E. M. Telles, A. Scalabrin, F. Strumia, a. Moretti, G. Carelli, C. a. Massa, “A review of optically pumped farinfrared laser lines from methanol isotopes,” Int. J. IR and MM Waves 15, 1–44 (1994).
N. G. Douglas, “Millimeter and Submillimeter Wavelength Lasers” (Springer-Verlag, New York), 1989.
F. R. Petersen, K. M. Evenson, D. A. Jennings, J. S. Wells, K. Goto, and J. J. Jimenez, “Far-infrared frequency synthesis with stabilized CO2 lasers: accurate measurements of the water vapor and methyl alcohol laser frequencies”, IEEE J. Quantum Electron. QE-11, 838–843 (1975).
E. C. C. Vasconcellos, S. C. Zerbetto, J. C. Holecek, and K. M. Evenson, “Short-wavelength far-infrared laser cavity yielding new laser lines in methanol,” Optics Letters 20, 1392–1393 (1995).
S. C. Zerbetto's doctoral dissertation “Lasers Moleculares na faixa de 0.4 à 11 THz e aplicações à espectroscopia”, Instituto de Física “Gleb Wataghin,” Departamento de Eletrônica Quântica, Universidade Estadual de Campinas, Dezembro 1995.
Li-Hong Xu, Ronald M. Lees, Elza C. C. Vasconcellos, Sandra C. Zerbetto, Lyndon R. Zink, and Kenneth M. Evenson, “Methanol and optically pumped far-infrared laser”, IEEE J. of Quantum Electron. 32, 392–399 (1996).
Edjar M. Telles, Lyndon R. Zink, and Kenneth M. Evenson, “New FIR laser lines from CD3OH,” Int. J. IR and MM Waves 19, 1627–1631 (1998).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Vasconcellos, E.C.C., Allen, M.D., Zink, L.R. et al. Optically-Pumped Far-Infrared Laser Lines in Hydrazine, Methanol, Heavy Water, and Ammonia: New Laser Lines and Frequency Measurements. International Journal of Infrared and Millimeter Waves 21, 725–730 (2000). https://doi.org/10.1023/A:1026456425454
Issue Date:
DOI: https://doi.org/10.1023/A:1026456425454