Scientific Results

Influence of anti-relaxation coating of optical cells on the potassium D-1 line saturated absorption

Year: 2015

Authors: Gozzini S., Lucchesini A., Marinelli C., Marmugi L., Gateva S., Tsvetkov S., Cartaleva S.

Autors Affiliation: Istituto Nazionale di Ottica CNR – UOS Pisa, Via Moruzzi 1, 56124 Pisa, Italy
Department of Physical, Geological and Environmental Sciences, University of Siena, via Roma 56, 53100 Siena, Italy
Institute of Electronics, BAS, 72 Tzarigradsko Chaussee blvd., 1784 Sofia, Bulgaria

Abstract: In this work we present new features observed in the Saturated Absorption (SA) spectrum on the D-1 line of K. In an uncoated optical glass cell containing pure K atoms, excitation by circularly polarized pump beam produces an enhancement of the amplitude of the crossover resonances due to the hyperfine transitions starting from the ground state F-g = 2. This effect appears to be much more relevant when K atoms are contained in a cell coated with an anti-relaxation film. Here, the crossover resonance in the F-g = 2 set of transition is not observed experimentally with linearly polarized pump light, while in case of circular polarization its amplitude is significantly enlarged. The Light Induced Atomic Desorption (LIAD) effect strongly improves the intensities of the SA resonances observed in coated cell.

Journal/Review: PROCEEDINGS OF SPIE

Volume: 9447      Pages from: 944708  to: 944708

More Information: Tanja Dreischuh, Sanka Gateva, Alexandros Serafetinides Editors.
KeyWords: Photon stimulated desorption; Narrow optical resonances; Saturation spectroscopy; Potassium; Diode laser spectroscopy
DOI: 10.1117/12.2179352

Citations: 4
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