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2013 | 123 | 4 | 631-636
Article title

Transient Dynamics of Atoms Inside Submicron Rectangular Waveguides

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EN
Abstracts
EN
The time evolution of the radiation pressure forces due to the action of a laser light on two-level atom moving inside a long hollow cylinder with a rectangular cross-section of sub-wavelength dimensions a × b is presented. This evolution is considered when the frequency of the light is comparable to a dipole allowed transition frequency. In this limit, the decay emission Γp is possible only via a very small number of modes. From the solutions of the Bloch equations in the dynamic regime, we find that the transient regime, applicable from the instant the laser is switched on. This is important for the gross motion, provided that the upper-state lifetime Γp^{-1} is relatively long while the steady-state regime, formally such that t ≫ Γp^{-1}, is appropriate for the evaluation of the forces and the dynamics for large Γp. Significant variations of the characteristics of the system are emphasized. These features are illustrated using typical parameters for the case of Eu^{3+} that has a particularly small Γp.
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EN
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Year
Volume
123
Issue
4
Pages
631-636
Physical description
Dates
published
2013-04
received
2012-03-17
Contributors
author
  • Department of Physics, Taibah University, P.O. Box 30002, Madina, Saudi Arabia
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv123n401kz
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