Multimode collective scattering of light in free space by a cold atomic gas
Ayllon, R. and Mendonça, J. T. and Gisbert, A. T. and Piovella, N. and Robb, G. R.M. (2019) Multimode collective scattering of light in free space by a cold atomic gas. Physical Review A, 100 (2). 023630. ISSN 2469-9926 (https://doi.org/10.1103/PhysRevA.100.023630)
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Abstract
We have studied collective recoil lasing by a cold atomic gas, scattering photons from an incident laser into many radiation modes in free space. The model consists of a system of classical equations for the atomic motion of N atoms where the radiation field has been adiabatically eliminated. We performed numerical simulations using a molecular dynamics code pepc (Pretty Efficient Parallel Coulomb Solver) to track the trajectories of the atoms. These simulations show the formation of an atomic density grating and collective enhancement of scattered light, both of which are sensitive to the shape and orientation of the atomic cloud. In the case of an initially circular cloud, the dynamical evolution of the cloud shape plays an important role in the development of the density grating and collective scattering. The ability to use efficient molecular dynamics codes will be a useful tool for the study of the multimode interaction between light and cold gases.
ORCID iDs
Ayllon, R., Mendonça, J. T., Gisbert, A. T., Piovella, N. and Robb, G. R.M. ORCID: https://orcid.org/0000-0002-3004-5926;-
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Item type: Article ID code: 71076 Dates: DateEvent30 August 2019Published31 May 2019AcceptedSubjects: Science > Physics > Plasma physics. Ionized gases Department: Faculty of Science > Physics Depositing user: Pure Administrator Date deposited: 10 Jan 2020 16:50 Last modified: 16 Oct 2024 00:35 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/71076