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Local-field enhancement of spontaneous decay in nanosystems: some estimations for dielectric particles |
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| Authors: | A.V.?Goncharenko author-information" > author-information__contact u-icon-before" > mailto:avg@isp.kiev.ua" title=" avg@isp.kiev.ua" itemprop=" email" data-track=" click" data-track-action=" Email author" data-track-label=" " >Email author,M.M.?Dvoynenko,V.Z.?Lozovski,K.S.?Kim |
| Affiliation: | (1) Center for Superfunctional Materials, Department of Chemistry, Pohang University of Science and Technology, Pohang, 790-784, South Korea;(2) Institute of Atomic and Molecular Sciences, Academia Sinica, P.O. Box 23-166, Taipei, Taiwan, China;(3) Institute of Semiconductor Physics, National Academy of Sciences of Ukraine, 45 pr. Nauki, 03028 Kyiv, Ukraine |
| Abstract: | Enhancement of the spontaneous decay rate due to local-field effects is estimated for a luminous dipole inside a small dielectric particle. To do this, we make use of an idea on multiplicativity of the local-field factor. Elongated particles are shown to be promising in respect of the local-field enhancement of the spontaneous emission. Computations are carried out within the framework of modern theory of the spontaneous decay of excited atoms in absorbing media for both the virtual-cavity and real-cavity models. Particular emphasis is placed on dielectric/semiconductor particles in the vicinity of the optical phonon frequencies. PACS 32.80.-t; 33.50.-j; 78.55.-m; 78.67.-nThis revised version was published in October 2004 with a new Figure 5. |
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