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

Rydberg Spectroscopy in Hollow-Core Photonic Crystal Fiber

G. Epple, K. S. Kleinbach, Tijmen Godfried Euser, R. Löw, Philip St.J. Russell

Published Jan 1, 2013• 0 citations
Publisher

Abstract

We present the first room-temperature results on a three-photon excitation of Rydberg states in cesium atoms placed inside a kagome-style hollow-core photonic crystal fiber.
DOI
10.1364/cleo_qels.2013.qth4c.4

Related papers

Rydberg atoms in hollow-core photonic crystal fibres

G. Epple, K. S. Kleinbach, Tijmen Godfried Euser +4 more

The exceptionally large polarizability of highly excited Rydberg atoms—six orders of magnitude higher than ground-state atoms—makes them of great interest in fields such as quantum optics, quantum computing, quantum simulation and metrology. However, if they are to be used routinely in applications, a major requirement is their integration into technically feasible, miniaturized devices. Here we show that a Rydberg medium based on room temperature caesium vapour can be confined in broadband-guiding kagome-style hollow-core photonic crystal fibres. Three-photon spectroscopy performed on a caesium-filled fibre detects Rydberg states up to a principal quantum number of n=40. Besides small energy-level shifts we observe narrow lines confirming the coherence of the Rydberg excitation. Using different Rydberg states and core diameters we study the influence of confinement within the fibre core after different exposure times. Understanding these effects is essential for the successful future development of novel applications based on integrated room temperature Rydberg systems. Rydberg atoms are appealing for sensing, atomic and quantum information studies, if they can be suitably integrated with optical devices. Towards this end, Epple et al. show that caesium-filled kagome-lattice hollow-core photonic crystal fibres provide a platform for fibre-based spectroscopy of Rydberg states.

arXiv:1402.2195•Nature Communications•Jun 19, 2014•121 citations

Storage of Light in a Hollow-Core Photonic-Crystal Fibre

Michael Sprague, Patrick Michelberger, Tessa F. M. Champion +7 more

We report the storage and retrieval of broadband optical pulses using a Raman interaction in a room-temperature ensemble of cesium atoms confined in a hollow-core photonic-crystal fibre. (C) 2013 Optical Society of America

•Jan 1, 2013•0 citations

Quantum coherent effects with hollow-core photonic crystal fibers

Fetah Benabid, P. S. Light, F. Couny

We review the results of the work done on coherent effects in hollow-core photonic crystal fibers. These include generation of electromagnetically induced transparency and saturable absorption spectroscopy in molecular gases and atomic vapours.

Conference on Lasers and Electro-Optics•May 1, 2008•0 citations

Saturated Absorption Spectroscopy of C2H2 inside a Hollow, Large-Core Kagome Photonic Crystal Fiber

James R. Macdonald Lab

•Jun 15, 2008•1 citation

Rydberg excitation of cold atoms inside a hollow-core fiber

Maria Langbecker, Mohammad Noaman, Niels Kjærgaard +2 more

We report on a versatile, highly controllable hybrid cold Rydberg atom fiber interface, based on laser cooled atoms transported into a hollow-core kagome crystal fiber. Our experiments demonstrate the feasibility of exciting cold Rydberg atoms inside a hollow-core fiber and we study the influence of the fiber on Rydberg electromagnetically induced transparency (EIT) signals. Using a temporally resolved detection method to distinguish between excitation and loss, we observe two different regimes of the Rydberg excitations: one EIT regime and one regime dominated by atom loss. These results are a substantial advancement towards future use of our system for quantum simulation or information.

arXiv:1706.07666•Physical Review A•Oct 26, 2017•30 citations

Squeezed light and self-induced transparency in mercury-filled hollow core photonic crystal fibers

Ulrich Vogl, Nicolas Y. Joly, Philip St.J. Russell +2 more

We successfully demonstrate squeezing of nanosecond pulses via self-induced transparency in a system of mercury vapor confined in a hollow core kagome-style fiber.

European Quantum Electronics Conference (EQEC)•Jun 21, 2015•1 citation
The exceptionally large polarizability of highly excited Rydberg atoms—six orders of magnitude higher than ground-state atoms—makes them of great interest in fields such as quantum optics, quantum computing, quantum simulation and metrology. However, if they are to be used routinely in applications, a major requirement is their integration into technically feasible, miniaturized devices. Here we show that a Rydberg medium based on room temperature caesium vapour can be confined in broadband-guiding kagome-style hollow-core photonic crystal fibres. Three-photon spectroscopy performed on a caesium-filled fibre detects Rydberg states up to a principal quantum number of n=40. Besides small energy-level shifts we observe narrow lines confirming the coherence of the Rydberg excitation. Using different Rydberg states and core diameters we study the influence of confinement within the fibre core after different exposure times. Understanding these effects is essential for the successful future development of novel applications based on integrated room temperature Rydberg systems. Rydberg atoms are appealing for sensing, atomic and quantum information studies, if they can be suitably integrated with optical devices. Towards this end, Epple et al. show that caesium-filled kagome-lattice hollow-core photonic crystal fibres provide a platform for fibre-based spectroscopy of Rydberg states.
We report on a versatile, highly controllable hybrid cold Rydberg atom fiber interface, based on laser cooled atoms transported into a hollow-core kagome crystal fiber. Our experiments demonstrate the feasibility of exciting cold Rydberg atoms inside a hollow-core fiber and we study the influence of the fiber on Rydberg electromagnetically induced transparency (EIT) signals. Using a temporally resolved detection method to distinguish between excitation and loss, we observe two different regimes of the Rydberg excitations: one EIT regime and one regime dominated by atom loss. These results are a substantial advancement towards future use of our system for quantum simulation or information.