Coherent Spectroscopy of Sodium and Potassium Vapour

A brief introduction is presented related to three different approaches for Coherent Population Trapping (CPT) observation, namely CPT resonance prepared: (i) in degenerate two-level system, (ii) by coupling pairs of non-degenerate Zeeman sublevels of two ground levels and (iii) utilizing Zeeman sub...

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Bibliographic Details
Main Authors: Alzetta, G, Cartaleva, S, Gozzini, S, Karaulanov, T, Lucchesini, A, Marinelli, C
Format: Conference Proceeding
Language:English
Subjects:
ATOMIC AND MOLECULAR PHYSICS
GROUND LEVEL
POTASSIUM
RESONANCE
SODIUM
SPECTROSCOPY
TRAPPING
VAPORS
ZEEMAN EFFECT
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Summary:A brief introduction is presented related to three different approaches for Coherent Population Trapping (CPT) observation, namely CPT resonance prepared: (i) in degenerate two-level system, (ii) by coupling pairs of non-degenerate Zeeman sublevels of two ground levels and (iii) utilizing Zeeman sublevels within a single hyperfine transition. As an illustration of the first two approaches recent results concerning the CPT preparation on the first resonance line in Na and K are described. The first, to our best knowledge, CPT resonance observation on the second resonance line of K (violet, 404.4 nm) is reported. A transfer of the CPT resonance due to cascade transitions, without compromising its parameters, is evidenced. The presented results are promising for investigation of processes in atomic vapour and gas discharge.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.2406014