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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 6, Iss. 2 — Feb. 1, 2008
  • pp: 83–86

Influence of dielectric microcavity on the spontaneous emission rate of atom: a perspective on the closed-orbit theory of photons

Shubao Wang, Xueyou Xu, Hongyun Li, Zhengmao Jia, and Shenglu Lin  »View Author Affiliations


Chinese Optics Letters, Vol. 6, Issue 2, pp. 83-86 (2008)


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Abstract

The formulas of the quantum electrodynamics have been applied to calculate the spontaneous emission rate of excited atom in dielectric microcavity. The results exhibit damping oscillating patterns which depend sensitively on the scaling parameter and geometrical structure. Compared with the case that the emitting atom is immersed in dielectric, the spontaneous emission rate is depressed obviously and the center or the mean value of the oscillations is intimately related to the real refractive index of the local position where the atom is. In order to explain this phenomenon, we utilize the closed-orbit theory to deal with the classical trajectories of the emitted photon, and extract the corresponding frequencies of the oscillations by Fourier transform. It is found that the oscillations can be represented in terms of the closed-orbits of the photon motion constrained in dielectric microcavity, thus providing another perspective on the spontaneous emission of atom sandwiched by dielectric slabs.

© 2008 Chinese Optics Letters

OCIS Codes
(020.0020) Atomic and molecular physics : Atomic and molecular physics
(020.4900) Atomic and molecular physics : Oscillator strengths
(070.2590) Fourier optics and signal processing : ABCD transforms
(270.5580) Quantum optics : Quantum electrodynamics

Citation
Shubao Wang, Xueyou Xu, Hongyun Li, Zhengmao Jia, and Shenglu Lin, "Influence of dielectric microcavity on the spontaneous emission rate of atom: a perspective on the closed-orbit theory of photons," Chin. Opt. Lett. 6, 83-86 (2008)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-6-2-83


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