Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Conference on Lasers and Electro-Optics

Ultrafast Rabi and Ramsey measurements with reconfigurable single-atom tweezer traps

Yunheung Song, Hanlae Jo, Han-gyeol Lee, Geol Moon, Jaewook Ahn

Published Jan 1, 2018• 0 citations
Publisher

Abstract

We simultaneously measured fine-structure state Rabi oscillations of rubidium atoms in reconfigurable single-atom tweezer traps driven by shaped ultrafast laser pulses, which are in a good agreement with the characterized laser beam profiles.
DOI
10.1364/cleo_qels.2018.fm2h.7

Related papers

Ultrafast energy exchange between two single Rydberg atoms on the nanosecond timescale

Yuki Torii Chew, Takafumi Tomita, Tirumalasetty Panduranga Mahesh +3 more

We observed a nanosecond-scale dynamics between two single atoms trapped in optical tweezers separated by ~ 1 µm and excited to Rydberg state with picosecond laser pulses. This opens the path for ultrafast quantum computation.

Conference on Lasers and Electro-Optics•Jan 1, 2022•1 citation

Ultrafast Rabi flopping in a three-level energy ladder

Jongseok Lim, Kanghee Lee, Jaewook Ahn

We demonstrate Rabi oscillation of a resonant two-photon transition in a three-level ladder-type quantum system of gaseous rubidium atoms induced by a single femtosecond laser pulse. For this, we shape the flat-top spatial profile of the laser pulse and perform the ultrafast population cycling of the atoms as a function of pulse energy. The experimental result confirms that the Rabi frequency of the transition from a ground state to a final state depends linearly on the pulse area, although the transition is a two-photon process.

Optics Letters•Aug 6, 2012•11 citations

Coherent clock-Rydberg Rabi oscillations on Sr atoms in optical tweezers

Marijn Venderbosch, Zhichao Guo, Deon Janse van Rensburg +6 more

•Mar 10, 2026•0 citations

RABI OSCILLATIONS AND EXCITATION BLOCKADE BETWEEN GROUND AND RYDBERG STATES OF SINGLE OPTICALLY TRAPPED RUBIDIUM ATOMS

Todd A. Johnson

•Jan 1, 2008•0 citations

Rabi oscillations of Morris-Shore–transformed N -state systems by elliptically polarized ultrafast laser pulses

Hyosub Kim, Yunheung Song, Han-gyeol Lee +1 more

We present an experimental investigation of ultrafast laser-driven Rabi oscillations of atomic rubidium. Because the broadband spectrum of an ultrafast laser pulse simultaneously couples all of the electronic hyperfine transitions between the excited and ground states, the complex excitation linkages involved with the ${D}_{1}$ or ${D}_{2}$ transition are energy degenerate. By application of the Morris-Shore transformation, this study shows that the considered multistate system is reduced to a set of independent two-state systems and dark states. In experiments performed by ultrafast laser interactions of atomic rubidium in the strong interaction regime, we demonstrate that the ultrafast dynamics of the considered system are governed by no more than two decoupled Rabi oscillations when it interacts with ultrafast laser pulses of any polarization state. We further show the implications of this result with regard to possible control of photoelectron polarizations.

arXiv:1504.00989•Physical Review A•May 26, 2015•6 citations

Ultrafast laser-driven Rabi oscillations of a trapped atomic vapor

Han-gyeol Lee, Hyosub Kim, Jaewook Ahn

We consider the Rabi oscillation of an atom ensemble of Gaussian spatial distribution interacting with ultrafast laser pulses. Based on an analytical model calculation, we show that its dephasing dynamics is solely governed by the size ratio between the atom ensemble and the laser beam, and that every oscillation peak of the inhomogeneously broadened Rabi flopping falls on the homogeneous Rabi oscillation curve. The results are verified experimentally with a cold rubidium vapor in a magneto-optical trap. As a robust means to achieve higher-fidelity population inversion of the atom ensemble, we demonstrate a spin-echo type R(x)(π/2)R(y)(π)R(x)(π/2) composite interaction as well.

arXiv:1409.5549•Optics Letters•Feb 4, 2015•14 citations
We demonstrate Rabi oscillation of a resonant two-photon transition in a three-level ladder-type quantum system of gaseous rubidium atoms induced by a single femtosecond laser pulse. For this, we shape the flat-top spatial profile of the laser pulse and perform the ultrafast population cycling of the atoms as a function of pulse energy. The experimental result confirms that the Rabi frequency of the transition from a ground state to a final state depends linearly on the pulse area, although the transition is a two-photon process.
We present an experimental investigation of ultrafast laser-driven Rabi oscillations of atomic rubidium. Because the broadband spectrum of an ultrafast laser pulse simultaneously couples all of the electronic hyperfine transitions between the excited and ground states, the complex excitation linkages involved with the D1{D}_{1}D1​ or D2{D}_{2}D2​ transition are energy degenerate. By application of the Morris-Shore transformation, this study shows that the considered multistate system is reduced to a set of independent two-state systems and dark states. In experiments performed by ultrafast laser interactions of atomic rubidium in the strong interaction regime, we demonstrate that the ultrafast dynamics of the considered system are governed by no more than two decoupled Rabi oscillations when it interacts with ultrafast laser pulses of any polarization state. We further show the implications of this result with regard to possible control of photoelectron polarizations.
We consider the Rabi oscillation of an atom ensemble of Gaussian spatial distribution interacting with ultrafast laser pulses. Based on an analytical model calculation, we show that its dephasing dynamics is solely governed by the size ratio between the atom ensemble and the laser beam, and that every oscillation peak of the inhomogeneously broadened Rabi flopping falls on the homogeneous Rabi oscillation curve. The results are verified experimentally with a cold rubidium vapor in a magneto-optical trap. As a robust means to achieve higher-fidelity population inversion of the atom ensemble, we demonstrate a spin-echo type R(x)(π/2)R(y)(π)R(x)(π/2) composite interaction as well.