Measurement of very-low sodium-vapor densities by means of optical resonance fluorescence
JOSA, Vol. 64, Issue 4, pp. 482-484 (1974)
http://dx.doi.org/10.1364/JOSA.64.000482
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Abstract
The sensitivity of the resonance-fluorescence method for the measurement of very-low sodium-vapor densities (<1010 atoms/cm3) has been studied. Light from a sodium spectral lamp is sent through a sodium-containing vessel, whose temperature can be varied. The vapor density has been measured in the region of 47–146 °C. At 47 °C, the vapor density is about 107 atoms/cm3 . The measurements were performed with both a photon-counting device and a lock-in amplifier. The experimental results have been normalized to absolute density data given in the literature. Fitting our points to the equation logN = a + b / T yields the values a = 23.715 and b = -5257.7 K.
Citation
F. C. M. Coolen, L. C. J. Baghuis, H. L. Hagedoorn, and J. A. van derHeide, "Measurement of very-low sodium-vapor densities by means of optical resonance fluorescence," J. Opt. Soc. Am. 64, 482-484 (1974)
http://www.opticsinfobase.org/josa/abstract.cfm?URI=josa-64-4-482
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