Application of Magnetically Induced Transitions of 87Rb Atoms in Coherent Optical Processes

• Published in: Optics and spectroscopy Vol. 128; no. 1; pp. 12 - 20
• Main Authors: Sargsyan, A., Vartanyan, T. A., Sarkisyan, D.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 2020; Springer Nature B.V
• Subjects: Lasers; Magnetic fields; Magnetic induction; Magnetic resonance; Optical Devices; Optical resonance; Optics; Photonics; Physics; Physics and Astronomy; Spatial resolution; Spectroscopy and Physics of Atoms and Molecules; Thickness; line of; hyperfine structure, D; magnetically induced transitions; Rb, microcell; hyperfine structure
• ISSN: 0030-400X; 1562-6911
• DOI: 10.1134/S0030400X2001021X

We experimentally demonstrated that magnetically induced (MI) F g = 1 → F e = 3 transitions of the D 2 -line of 87 Rb are promising for the generation of optical resonances in strong magnetic fields of up to 3 kG. A cell of micron-scale thickness filled with Rb vapors was used. A simple and convenient method of determining magnetic induction that exhibits micron-scale spatial resolution is described. In the process, it becomes unnecessary using a reference spectrum. The probability of an MI transition in the interval of magnetic fields from 0.3 to 2 kG can exceed the probability of an ordinary atomic transition, which makes using it as a coupling or probe transition in Λ- or V-systems advantageous for formation of dark resonances in processes of electromagnetically induced transparency (EIT). Dark resonances shifted in strong magnetic fields by as much as 10 GHz may find a number of practical applications. Note that dark resonances are nearly absent in Λ-systems based on ordinary atomic transitions in magnetic fields exceeding 1 kG.