Spontaneous-emission enhancement and population oscillation in photonic crystals via quantum interference

Yaping Yang*, Shi Yao ZHU

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

80 Citations (Scopus)


Spontaneous emission from a V-type three-level atom in a photonic crystal is investigated. Quantum interference between the two atomic transitions affects the constructor of dressed states, and leads to an interesting behavior of the populations in the two upper levels: antitrapping, periodic oscillation, and no population inversion. Those properties depend strongly on the relative position of the upper levels from the forbidden gap and the initial state of the atom, and differ from that of a two-level atom in a photonic crystal. The emitted field, which is composed of localized mode(s) and propagating mode(s), is also studied. Quantum interference can enhance or reduce the energy of the localized field.

Original languageEnglish
Article number043809
JournalPhysical Review A
Issue number4
Publication statusPublished - Mar 2000

Scopus Subject Areas

  • Atomic and Molecular Physics, and Optics


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