Absorption spectrum of rubidium and cesium dimers by compact computer operated spectrometer |
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Authors: | S Vdovi? D Sarkisyan |
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Institution: | a Institute of Physics, Bijeni?ka 46, P.O. Box 304, HR-10001 Zagreb, Croatia b Institute for Physical Research, NAS of Armenia, Ashtarak-2, 378410, Armenia |
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Abstract: | In this paper we are presenting the visible absorption spectrum of both rubidium and cesium vapor in the 570-870 K temperature range. We used a classical absorption spectroscopy experimental scheme with several new features. The first concerns the use of modern, compact, computer operated spectrometer (Ocean Optics HR4000CG-UV-NIR), which allowed us to record spectra instantaneously resulting in higher signal-to-noise ratio. The second improvement is connected with the use of the all-sapphire cells (ASC) enabling work with a high density of alkali atoms within precisely defined vapor column. In the superheated regime (above 700 K) thermal destruction of dimer molecules clearly distinguishes triplet from singlet transitions. |
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Keywords: | 33 20 Kf 32 70 Jz 34 20 Cf 33 70 Fd 33 70 &minus w |
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