Abstract
Consider a material system that has localized electronic states (for example, an isolated atom or, in solid-state physics, an isolated impurity in a semiconductor) placed in a planar cavity with perfectly reflecting, metalliclike mirrors. A planar cavity is not a stable resonator, and does not have any discrete modes: it has a continuum of modes which axe angularly dispersed. This means that, when the material system is optically excited, its transition dipole will couple to the continuum of cavity modes. Thus, the energy of the discrete level that corresponds to the localized excitation will decay exponentially into the cavity modes at a rate that is proportional to the density of states of the electromagnetic field inside the cavity, according to Fermi’s Golden Rule.
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© 1996 Kluwer Academic Publishers
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Abram, I., Sermage, B., Long, S., Bloch, J., Planel, R., Thierry-Mieg, V. (1996). Spontaneous Emission Dynamics in Planar Semiconductor Microcavities. In: Rarity, J., Weisbuch, C. (eds) Microcavities and Photonic Bandgaps: Physics and Applications. NATO ASI Series, vol 324. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-0313-5_6
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DOI: https://doi.org/10.1007/978-94-009-0313-5_6
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