Resonances in Mie scattering by an inhomogeneous atomic cloud

Abstract

Despite the quantum nature of the process, collective scattering by dense cold samples of two-level atoms can be interpreted classically describing the sample as a macroscopic object with a complex refractive index. We demonstrate that resonances in Mie theory can be easily observable in the cooperative scattering by tuning the frequency of the incident laser field or the atomic number. The solution of the scattering problem is obtained for spherical atomic clouds who have the parabolic density characteristic of BECs, and the cooperative radiation pressure force calculated exhibits resonances in the cloud displacement for dense clouds. At odds from uniform clouds which show a complex structure including narrow peaks, these densities show resonances, yet only under the form of quite regular and contrasted oscillations.

References in corpus (2)

• Observation of a Cooperative Radiation Force in the Presence of Disorder
• Photon bubbles in ultra-cold matter

Cited by in corpus (16)

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• Cooperativity in light scattering by cold atoms
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• Role of disorder in super- and subradiance of cold atomic clouds
• Coherence effects in scattering order expansion of light by atomic clouds
• Population of collective modes in light scattering by many atoms
• Collective Excitation Dynamics of a Cold Atom Cloud
• Microscopic theory of photonic band gaps in optical lattices
• Collective effects in the radiation pressure force
• Anderson localization of light in dimension $d-1$
• The role of Mie scattering in the seeding of matter-wave superradiance
• Fluid description of the cooperative scattering of light by spherical atomic clouds
• Frequency-comb-induced radiation pressure force in dense atomic clouds
• Non-mean-field effects in systems with long-range forces in competition
• Mean-Field Description of Cooperative Scattering by Atomic Clouds