Resolution of hyperfine transitions in metastable 83Kr using Electromagnetically Induced Transparency

TL;DR

This paper reports the first observation of narrow linewidth Electromagnetically Induced Transparency signals in metastable 83Kr, enabling precise identification of hyperfine transitions and improved determination of hyperfine constants.

Contribution

It introduces the first observation of EIT in metastable 83Kr and uses it to resolve hyperfine transitions and accurately measure hyperfine constants.

Findings

First observation of EIT in metastable 83Kr.

Resolved previously unresolved hyperfine transitions.

Improved accuracy in hyperfine constant measurements.

Abstract

Narrow linewidth signals of Electromagnetically Induced Transparency (EIT) in the metastable 83Kr have been observed for the first time. Various hyperfine transitions in 4p55s[3/2]2 to 4p55p[5/2]3 manifolds of 83Kr have been identified through the experimentally observed EIT signals. Some unresolved or poorly resolved hyperfine transitions in saturated absorption spectroscopy (SAS) are clearly resolved in the present work. Using the spectral separation of these EIT identified hyperfine transitions, the magnetic hyperfine constant (A) and the electric quadrupole hyperfine constant (B) are determined with improved accuracy for 4p55s[3/2]2 and 4p55p[5/2]3 manifolds.