Abstract
Saturation spectroscopy involving laser light fields of two different frequencies has been applied to the investigation of Ne*-Ne collisions in an absorptive neon discharge. The pressure broadening of the saturation signals is interpreted in terms of “weak” collisions. Half the signal width results from velocity shifts of 2p 4 atoms rather than from oscillator dephasing. The mean velocity shift is considerably larger than in collisions with helium atoms.
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We are indebted Theo W. Hänsch for valuable discussions during the early stages of this work.
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Keil, R., Schabert, A. & Toschek, P. Collisional broadening of saturated absorption in neon. Z. Physik 261, 71–84 (1973). https://doi.org/10.1007/BF01402282
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DOI: https://doi.org/10.1007/BF01402282