Title :
New results of absolute measurement of unperturbed frequency of F/sub 2//sup (2/) P(7)/spl nu//sub 3/-transition in methane with accuracy of 10/sup -13/
Author :
Bagayev, S.N. ; Dmitriyev, A.K. ; Klementyev, V.M. ; Ohm, A.E. ; Okhapkin, M.V. ; Pokasov, P.V. ; Timchenko, B.A. ; Zakharyash, V.F.
Author_Institution :
Inst. of Laser Phys., Acad. of Sci., Novosibirsk, Russia
fDate :
June 27 1994-July 1 1994
Abstract :
The results of measurement of absolute shifts of recoil doublet components due to the influence of second-order Doppler effect, and mutual influence of their wings has been reported. Measurements were carried out using the unique laser spectrometer on the wavelength of 3.39 /spl mu/m with resolution of 10/sup -13/, and the optical clock. New results of absolute frequency measurements of 7-6 F/sub 2//sup (2)/ P(7)/spl nu//sub 3/-transition of methane with accuracy of 10/sup -13/ are presented. Possibility of increasing accuracy of these measurements to 10/sup -14/ been discussed.<>
Keywords :
Doppler effect; frequency measurement; infrared spectroscopy; laser beam applications; measurement standards; molecular excited states; organic compounds; 3.39 mum; absolute frequency measurements; absolute measurement; absolute shifts; laser spectrometer; methane; optical clock; recoil doublet components; second-order Doppler effect; unperturbed frequency; Clocks; Doppler effect; Frequency measurement; Laser theory; Spectroscopy; Wavelength measurement;
Conference_Titel :
Precision Electromagnetic Measurements, 1994. Digest., 1994 Conference on
Conference_Location :
Boulder, CO, USA
Print_ISBN :
0-7803-1984-2
DOI :
10.1109/CPEM.1994.333381
