Studying the regime of complete decoupling of the bond between the electron and nuclear moments at the D 1-line of the 39K potassium isotope using a spectroscopic microcell

Sargsyan, A.; Amiryan, A.; Vartanyan, T. A.; Sarkisyan, D.

doi:10.1134/s0030400x16120213

Cited by 6 publications

(1 citation statement)

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“…[23] Meantime, the ultra-thin chambers of MCs are expected to lower the influence of spatial magnetic-field gradient on spectra, [13,24] which is valuable for high-spatial-resolution mapping of highgradient strong magnetic field. Currently, the split saturated absorption spectra in strong magnetic fields with suppressed crossover spectral lines have been experimentally observed in Rb and K atomic MCs, [1,13,20,25] with valuable applications of wide-range magnetometry proposed. However, few investigations have been made on comprehensive theoretical calculations explaining the mechanism of MCs suppressing crossover spectral lines, with the strength and direction of the magnetic field, the propagation direction and polarization of the pump/probe beam considered.…”

Section: Introductionmentioning

confidence: 99%

Saturated absorption spectrum of cesium micrometric-thin cell with suppressed crossover spectral lines

et al. 2023

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Micrometric-thin cells (MCs) with alkali vapor atoms have been valuable for research and applications of hyperfine Zeeman splitting and atomic magnetometers under strong magnetic fields. In this paper, the saturated absorption spectra using a 100-μm cesium MC are studied theoretically and experimentally, where the pump and probe beams are linearly polarized beams with mutually perpendicular polarizations, and the magnetic field is along the pump beam. Because of the distinctive thin chamber of the MC, crossover spectral lines in saturated absorption spectra are largely suppressed leading to clear splittings of hyperfine Zeeman transitions in experiments, and the effect of spatial magnetic field gradient is expected to be reduced. A calculation method is proposed to achieve good agreements between theoretical calculations and experimental results. This method successfully explains the suppression of crossover lines in MCs, as well as the effects of magnetic field direction, propagation and polarization directions of the pump/probe beam on saturated absorption spectrum. The saturated absorption spectrum with suppressed crossover lines is used for laser frequency stabilization, which may provide the potential value of MCs for high spatial resolution strong-field magnetometry with high sensitivity.

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