Lamb-Dicke spectroscopy of atoms in a hollow-core photonic crystal fibre

Shoichi Okaba; Tetsushi Takano; Fetah Benabid; Tom Bradley; Luca Vincetti; Zakhar Maizelis; Valery Yampol'Skii; Franco Nori; Hidetoshi Katori

doi:10.1038/ncomms5096

Lamb-Dicke spectroscopy of atoms in a hollow-core photonic crystal fibre

Shoichi Okaba, Tetsushi Takano, Fetah Benabid, Tom Bradley, Luca Vincetti, Zakhar Maizelis, Valery Yampol'Skii, Franco Nori, Hidetoshi Katori

Department of Physics

Research output: Contribution to journal › Article › peer-review

86 Citations (SciVal)

Abstract

Unlike photons, which are conveniently handled by mirrors and optical fibres without loss of coherence, atoms lose their coherence via atom-atom and atom-wall interactions. This decoherence of atoms deteriorates the performance of atomic clocks and magnetometers, and also hinders their miniaturization. Here we report a novel platform for precision spectroscopy. Ultracold strontium atoms inside a kagome-lattice hollow-core photonic crystal fibre are transversely confined by an optical lattice to prevent atoms from interacting with the fibre wall. By confining at most one atom in each lattice site, to avoid atom-atom interactions and Doppler effect, a 7.8-kHz-wide spectrum is observed for the 1S₀-3 P₁ (m=0) transition. Atoms singly trapped in a magic lattice in hollow-core photonic crystal fibres improve the optical depth while preserving atomic coherence time.

Original language	English
Article number	4096
Journal	Nature Communications
Volume	5
DOIs	https://doi.org/10.1038/ncomms5096
Publication status	Published - 17 Jun 2014

ASJC Scopus subject areas

General Biochemistry,Genetics and Molecular Biology
General Chemistry
General Physics and Astronomy

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10.1038/ncomms5096Licence: CC BY-NC-ND

Cite this

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abstract = "Unlike photons, which are conveniently handled by mirrors and optical fibres without loss of coherence, atoms lose their coherence via atom-atom and atom-wall interactions. This decoherence of atoms deteriorates the performance of atomic clocks and magnetometers, and also hinders their miniaturization. Here we report a novel platform for precision spectroscopy. Ultracold strontium atoms inside a kagome-lattice hollow-core photonic crystal fibre are transversely confined by an optical lattice to prevent atoms from interacting with the fibre wall. By confining at most one atom in each lattice site, to avoid atom-atom interactions and Doppler effect, a 7.8-kHz-wide spectrum is observed for the 1S0-3 P1 (m=0) transition. Atoms singly trapped in a magic lattice in hollow-core photonic crystal fibres improve the optical depth while preserving atomic coherence time.",

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AU - Takano, Tetsushi

AU - Benabid, Fetah

AU - Bradley, Tom

AU - Vincetti, Luca

AU - Maizelis, Zakhar

AU - Yampol'Skii, Valery

AU - Nori, Franco

AU - Katori, Hidetoshi

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AB - Unlike photons, which are conveniently handled by mirrors and optical fibres without loss of coherence, atoms lose their coherence via atom-atom and atom-wall interactions. This decoherence of atoms deteriorates the performance of atomic clocks and magnetometers, and also hinders their miniaturization. Here we report a novel platform for precision spectroscopy. Ultracold strontium atoms inside a kagome-lattice hollow-core photonic crystal fibre are transversely confined by an optical lattice to prevent atoms from interacting with the fibre wall. By confining at most one atom in each lattice site, to avoid atom-atom interactions and Doppler effect, a 7.8-kHz-wide spectrum is observed for the 1S0-3 P1 (m=0) transition. Atoms singly trapped in a magic lattice in hollow-core photonic crystal fibres improve the optical depth while preserving atomic coherence time.

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Lamb-Dicke spectroscopy of atoms in a hollow-core photonic crystal fibre

Abstract

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