title: Superradiance for Atoms Trapped along a Photonic Crystal Waveguide.
abstract: We report observations of superradiance for atoms trapped in the near field of a photonic crystal waveguide (PCW). By fabricating the PCW with a band edge near the D(1) transition of atomic cesium, strong interaction is achieved between trapped atoms and guided-mode photons. Following short-pulse excitation, we record the decay of guided-mode emission and find a superradiant emission rate scaling as Γ̅(SR)∝N̅Γ(1D) for average atom number 0.19≲N̅≲2.6 atoms, where Γ(1D)/Γ'=1.0±0.1 is the peak single-atom radiative decay rate into the PCW guided mode, and Γ' is the radiative decay rate into all the other channels. These advances provide new tools for investigations of photon-mediated atom-atom interactions in the many-body regime.
authors: Norman Bridge Laboratory of Physics 12-33, California Institute of Technology, Pasadena, California 91125, USA.|Institute for Quantum Information and Matter, California Institute of Technology, Pasadena, California 91125, USA.
authors: A
authors: A
authors: Goban
authors: Norman Bridge Laboratory of Physics 12-33, California Institute of Technology, Pasadena, California 91125, USA.|Institute for Quantum Information and Matter, California Institute of Technology, Pasadena, California 91125, USA.
authors: C-L
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authors: Hung
authors: Norman Bridge Laboratory of Physics 12-33, California Institute of Technology, Pasadena, California 91125, USA.|Institute for Quantum Information and Matter, California Institute of Technology, Pasadena, California 91125, USA.
authors: J D
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authors: Hood
authors: Norman Bridge Laboratory of Physics 12-33, California Institute of Technology, Pasadena, California 91125, USA.|Institute for Quantum Information and Matter, California Institute of Technology, Pasadena, California 91125, USA.
authors: S-P
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authors: Yu
authors: Norman Bridge Laboratory of Physics 12-33, California Institute of Technology, Pasadena, California 91125, USA.|Institute for Quantum Information and Matter, California Institute of Technology, Pasadena, California 91125, USA.
authors: J A
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authors: Muniz
authors: Institute for Quantum Information and Matter, California Institute of Technology, Pasadena, California 91125, USA.|Thomas J. Watson, Sr., Laboratory of Applied Physics 128-95, California Institute of Technology, Pasadena, California 91125, USA.
authors: O
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authors: Painter
authors: Norman Bridge Laboratory of Physics 12-33, California Institute of Technology, Pasadena, California 91125, USA.|Institute for Quantum Information and Matter, California Institute of Technology, Pasadena, California 91125, USA.
authors: H J
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authors: Kimble