Rydberg-atom based radio-frequency electrometry using frequency modulation spectroscopy in room temperature vapor cells

S Kumar, H Fan, H Kübler, AJ Jahangiri, JP Shaffer - Optics Express, 2017 - opg.optica.org
Rydberg atom-based electrometry enables traceable electric field measurements with high
sensitivity over a large frequency range, from gigahertz to terahertz. Such measurements are …

Metrological characterization of the pulsed Rb clock with optical detection

S Micalizio, CE Calosso, A Godone, F Levi - Metrologia, 2012 - iopscience.iop.org
We report on the implementation and metrological characterization of a vapour-cell Rb
frequency standard working in a pulsed regime. The three main parts of the clock, physics …

High-performance coherent population trap** clock with polarization modulation

P Yun, F Tricot, CE Calosso, S Micalizio, B François… - Physical Review …, 2017 - APS
We demonstrate a vapor-cell atomic-clock prototype based on a continuous-wave
interrogation and double-modulation coherent population trap** (DM-CPT) technique …

Pulsed-CPT Cs-Ne microcell atomic clock with frequency stability below 2 × 10−12 at 105 s

C Carlé, M Abdel Hafiz, S Keshavarzi, R Vicarini… - Optics …, 2023 - opg.optica.org
We report on the mid-term stability progress of a table-top coherent population trap**
(CPT) microcell atomic clock, previously limited by light-shift effects and variations of the …

Toward a high-stability coherent population trap** Cs vapor-cell atomic clock using autobalanced Ramsey spectroscopy

M Abdel Hafiz, G Coget, M Petersen, C Rocher… - Physical Review …, 2018 - APS
Vapor-cell atomic clocks are widely appreciated for their excellent short-term fractional
frequency stability and their compactness. However, they are known to suffer on medium …

Protocol for light-shift compensation in a continuous-wave microcell atomic clock

M Abdel Hafiz, R Vicarini, N Passilly, CE Calosso… - Physical Review …, 2020 - APS
Light shifts are known to be an important limitation to the mid-and long-term fractional
frequency stability of different types of atomic clocks. In this article, we demonstrate the …

Light-shift mitigation in a microcell-based atomic clock with symmetric auto-balanced Ramsey spectroscopy

M Abdel Hafiz, C Carlé, N Passilly, JM Danet… - Applied Physics …, 2022 - pubs.aip.org
The mid-term fractional frequency stability of miniaturized atomic clocks can be limited by
light-shift effects. In this Letter, we demonstrate the implementation of a symmetric auto …

Coherent-population-trap** resonances in buffer-gas-filled Cs-vapor cells with push-pull optical pum**

X Liu, JM Mérolla, S Guérandel, C Gorecki… - Physical Review A …, 2013 - APS
We report on a theoretical study and experimental characterization of coherent-population-
trap** (CPT) resonances in buffer-gas-filled vapor cells with push-pull optical pum** …

Exploring the use of Ramsey-CPT spectroscopy for a microcell-based atomic clock

C Carlé, M Petersen, N Passilly… - IEEE Transactions …, 2021 - ieeexplore.ieee.org
We investigate the application of Ramsey spectroscopy for the development of a microcell
atomic clock based on coherent population trap** (CPT). The dependence of the central …

AC Stark-shift in CPT-based Cs miniature atomic clocks

D Miletic, C Affolderbach, M Hasegawa, R Boudot… - Applied Physics B, 2012 - Springer
We report on studies on the light-shift in caesium miniature atomic clocks based on coherent
population trap** (CPT) using a micro-fabricated buffer-gas cell (MEMS cell). The CPT …