Doppler-free Rydberg Spectroscopy in Warm Vapor
arXiv:2506.04504 · doi:10.1103/qzwk-2g33
Abstract
The common approach for producing Rydberg atoms in warm vapor cells is with lasers arranged in a counter-propagating, collinear configuration. Doppler effects in these configurations reduce the efficiency of excitation to the Rydberg state while also producing broadened spectral features. In this work, we demonstrate a three-laser Doppler-free excitation using laser beams whose k-vectors sum to zero, resulting in an enhancement in the Rydberg density and narrowed spectral features. A three-times enhancement to Rydberg density along with a near four-times reduction in spectroscopic line-widths are observed compared to a collinear configuration. This Doppler-free configuration could prove beneficial to Rydberg atomic technologies, such as electric field sensing with small volumes or deterministic photon sources.
7 pages, 7 figures
References in corpus (9)
- High-fidelity parallel entangling gates on a neutral atom quantum computer
- A practical guide to electromagnetically induced transparency in atomic vapor
- Multi-qubit gates and Schrödinger cat states in an optical clock
- Benchmarking and fidelity response theory of high-fidelity Rydberg entangling gates
- Simultaneous Multi-Band Demodulation Using a Rydberg Atomic Sensor
- RydIQule: A Graph-based Paradigm for Modelling Rydberg and Atomic Systems
- Simultaneous multi-band radio-frequency detection using high-orbital-angular-momentum states in a Rydberg-atom receiver
- Dressed-state electromagnetically induced transparency for light storage in uniform phase spin-waves
- Complete three-dimensional vector polarimetry with a Rydberg atom rf electrometer