SciPost Physics

SciPost Phys. 2, 015 (2017) · published 25 April 2017

• doi: 10.21468/SciPostPhys.2.2.015
• pdf
• BiBTeX
• RIS
• Submissions/Reports
• 

Abstract

We present experimental results on the influence of magnetic fields and laser polarization on electromagnetically induced transparency (EIT) using Rydberg levels of $^{87}$Rb atoms. The measurements are performed in a room temperature vapor cell with two counter-propagating laser beams at 480nm and 780nm in a ladder-type energy level scheme. We measure the EIT spectrum of a range of $ns_{1/2}$ Rydberg states for $n=19-27$, where the hyperfine structure can still be resolved. Our measurements span the range of magnetic fields from the low field linear Zeeman regime to the high field Paschen-Back regimes. The observed spectra are very sensitive to small changes in magnetic fields and the polarization of the laser beams. We model our observations using optical Bloch equations that take into account the full multi-level structure of the atomic states involved and the decoupling of the electronic $J$ and nuclear $I$ angular momenta in the Breit-Rabi regime. The numerical model yields excellent agreement with the observations. In addition to EIT related experiments, our results are relevant for experiments involving coherent excitation to Rydberg levels in the presence of magnetic fields.

• de Assis et al., Unambiguous discrimination of nonorthogonal quantum states in cavity QED
  Physics Letters A 381, 2927 (2017) [Crossref]
• Xu et al., Optical-optical double resonance spectroscopy of Rb 5D3/2,5/2 in magnetic fields
  Spectrochimica Acta Part B: Atomic Spectroscopy 193, 106453 106453 (2022) [Crossref]
• Cheng et al., High resolution electromagnetically induced transparency spectroscopy of Rydberg ^87Rb atom in a magnetic field
  Opt. Express 25, 33575 (2017) [Crossref]
• Nguyen et al., Differential nuclear-spin-dependent light shifts and state mixing of Rydberg atoms
  Phys. Rev. A 100, 033412 (2019) [Crossref]
• Wang et al., Artificial modulation-free Pound–Drever–Hall method for laser frequency stabilization
  Opt. Lett. 44, 5816 (2019) [Crossref]
• Schlossberger et al., Zeeman-resolved Autler-Townes splitting in Rydberg atoms with tunable resonances and a single transition dipole moment
  Phys. Rev. A 109, L021702 (2024) [Crossref]
• Trautmann et al., Spectroscopy of Rydberg states in erbium using electromagnetically induced transparency
  Phys. Rev. Research 3, 033165 (2021) [Crossref]
• Mottola et al., Electromagnetically induced transparency and optical pumping in the hyperfine Paschen-Back regime
  Phys. Rev. A 108, 062820 (2023) [Crossref]
• Barik et al., Doppler-enhanced quantum magnetometry with thermal Rydberg atoms
  New J. Phys. 26, 073036 (2024) [Crossref]
• McNally et al., Optical cycling, radiative deflection and laser cooling of barium monohydride (138Ba1H)
  New J. Phys. 22, 083047 (2020) [Crossref]
• Li et al., Magnetic-field-induced splitting of Rydberg Electromagnetically Induced Transparency and Autler-Townes spectra in 87Rb vapor cell
  Opt. Express 31, 38165 (2023) [Crossref]