Open AccessCoherent magneto-optical resonances in hot potassium vapor
Author(s) -
S. Gateva,
S. Tsvetkov,
G. Todorov,
S. Gozzini,
K. A. Nasyrov,
C. Andreeva,
S. Cartaleva
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1859/1/012022
Subject(s) - resonance fluorescence , resonance (particle physics) , excited state , excitation , spectroscopy , fluorescence , laser , wavelength , chemistry , atomic physics , materials science , nuclear magnetic resonance , optics , optoelectronics , physics , quantum mechanics
In this communication, we present experimental results on the preparation of magneto-optical resonances in potassium. The magneto-optical resonances are registered in Hanle configuration, i.e. monitoring the atomic fluorescence vs the applied magnetic field scanned around zero value. The excitation of the second resonance line with a wavelength of 404.4 nm leads both to direct fluorescence at 404.4 nm and to a cascade decay with fluorescence at 770.1 nm and 764.5 nm (first resonance line transitions). This transfer is evidenced by the registration of a narrow magneto-optical resonance in the fluorescence. It should also be noted that even after multiple cascade transitions, the resonance observed on the infrared lines has a much better signal/noise ratio compared to that on the excited second resonance line. Therefore, the study of these sub-Doppler-width magneto-optical resonances in hot potassium vapor will be useful for the further development of high-resolution magneto-optical laser spectroscopy.