NASA NTRS · 19760038825
Density-dependent frequency shift of the hydrogen S2/1/ quadrupole line
Abstract
An optical parametric oscillator pumped with an Nd:YAG laser was used in the investigations along with a White cell and a scanning spectrometer. The frequency of the S2(1) line was measured at a temperature of about 293 K over the density range from 1 to 4.3 amagat with the aid of a technique reported by Douglas and Sharma (1953). It was found that the obtained data are in good agreement with measurements conducted by Fink et al. (1965).
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Chackerian, C., Jr., Giver, L. P.. 1975-01-01. Density-dependent frequency shift of the hydrogen S2/1/ quadrupole line. https://ntrs.nasa.gov/citations/19760038825
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