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Cold and dense clouds of atoms in a holographic atom trap

Raymond Newell

Jan 1, 20032 citations

Investigation of radiation trapping in cold-atom clouds by intensity correlation measurement

Ronald W. Stites, Matthew C. Beeler, Laura Feeney +2 more

APSMay 1, 20040 citations

Coulomb-like force induced by radiation trapping in a cold atom cloud

Laurence Pruvost, Padma Kant Shukla, José Tito Mendonça +2 more

AIP conference proceedingsJan 1, 20120 citations

Atom trapping and spectroscopy in cavity-generated optical potentials

Yun Jhih Chen, Stefan Zigo, Georg A. Raithel

We use a near-concentric optical cavity at 1064 nm to generate trapping potentials for cold atoms. The cavity exhibits nondegenerate Hermite-Gaussian modes. Using just a few-milliwatt trap laser power, the cavity readily generates one- and higher-dimensional optical traps that replicate the mode functions. We spectroscopically characterize the optical trapping potentials and laser-cooling limits under continuous loading conditions. We use absorption images to measure atom densities and to compare the spatial profiles of trapped-atom samples with calculated mode functions. Steady-state fluorescence images reveal bright radiation emerging from the ends of the elongated, cavity-trapped atom clouds, providing evidence for radiation guiding.We use a near-concentric optical cavity at 1064 nm to generate trapping potentials for cold atoms. The cavity exhibits nondegenerate Hermite-Gaussian modes. Using just a few-milliwatt trap laser power, the cavity readily generates one- and higher-dimensional optical traps that replicate the mode functions. We spectroscopically characterize the optical trapping potentials and laser-cooling limits under continuous loading conditions. We use absorption images to measure atom densities and to compare the spatial profiles of trapped-atom samples with calculated mode functions. Steady-state fluorescence images reveal bright radiation emerging from the ends of the elongated, cavity-trapped atom clouds, providing evidence for radiation guiding.

Physical Review AJun 10, 201415 citations

Radiation trapping in a cold atomic gas

G. Labeyrie, Robin Kaiser, Dominique Delande

Applied Physics BNov 1, 200545 citations

Collective emission of photons from dense, dipole-dipole interacting atomic ensembles

David Petrosyan, Klaus Mølmer

We study the collective radiation properties of cold, trapped ensembles of atoms. We consider the high-density regime with the mean interatomic distance being comparable to, or smaller than, the wavelength of the resonant optical radiation emitted by the atoms. We find that the emission rate of a photon from an excited atomic ensemble is strongly enhanced for an elongated cloud. We analyze collective single-excitation eigenstates of the atomic ensemble and find that the absorption-emission spectrum is broadened and shifted to lower frequencies as compared to the noninteracting (low-density) or single-atom spectrum. We also analyze the spatial and temporal profile of the emitted radiation. Finally, we explore how to efficiently excite the collective superradiant states of the atomic ensemble from a long-lived storage state in order to implement matter-light interfaces for quantum computation and communication applications.We study the collective radiation properties of cold, trapped ensembles of atoms. We consider the high-density regime with the mean interatomic distance being comparable to, or smaller than, the wavelength of the resonant optical radiation emitted by the atoms. We find that the emission rate of a photon from an excited atomic ensemble is strongly enhanced for an elongated cloud. We analyze collective single-excitation eigenstates of the atomic ensemble and find that the absorption-emission spectrum is broadened and shifted to lower frequencies as compared to the noninteracting (low-density) or single-atom spectrum. We also analyze the spatial and temporal profile of the emitted radiation. Finally, we explore how to efficiently excite the collective superradiant states of the atomic ensemble from a long-lived storage state in order to implement matter-light interfaces for quantum computation and communication applications.

arXiv:2009.08653Physical Review AFeb 4, 20218 citations

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