Quantum interference in absorption and dispersion of a fourlevel atom in a doubleband photonic crystal
Abstract
The probe absorptiondispersion spectrum of a double Vtype fourlevel atom in a doubleband photonic crystal is investigated. In the model used, the double Vtype transitions are, respectively, coupled by the free vacuum modes and the photonic band gap modes, leading to the two possible types of quantum interference. Three types of zero absorption (transparency) appear in this model. In the first type, there exist two zeroes at the band edge frequencies in the case of isotropic photonic band gap. In the second type, a zero emerges at the middle frequency of two upper levels in the case that the quantum interference takes place in both Vtype transitions. Finally, in the third type, a zero occurs at or around the middle frequency of two upper levels in the case that the quantum interference takes place only in the Vtype transitions coupled to the free vacuum modes. Ultimately, the probe absorptiondispersion spectrum in the case of the singleband photonic band gap reservoirs compared to those of the doubleband photonic band gap reservoirs. The results show that the dispersion property of the system depends on the two types of the quantum interference and the density of states of the photonic band gap reservoir.
 Authors:
 Research Institute for Applied Physics and Astronomy, Tabriz University, Tabriz (Iran, Islamic Republic of)
 Publication Date:
 OSTI Identifier:
 20982192
 Resource Type:
 Journal Article
 Resource Relation:
 Journal Name: Physical Review. A; Journal Volume: 75; Journal Issue: 2; Other Information: DOI: 10.1103/PhysRevA.75.023816; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 74 ATOMIC AND MOLECULAR PHYSICS; ABSORPTION; ATOMS; DENSITY; DISPERSIONS; INTERFERENCE; OPACITY; OPTICS; SPECTRA
Citation Formats
Entezar, Samad Roshan, and Tajalli, Habib. Quantum interference in absorption and dispersion of a fourlevel atom in a doubleband photonic crystal. United States: N. p., 2007.
Web. doi:10.1103/PHYSREVA.75.023816.
Entezar, Samad Roshan, & Tajalli, Habib. Quantum interference in absorption and dispersion of a fourlevel atom in a doubleband photonic crystal. United States. doi:10.1103/PHYSREVA.75.023816.
Entezar, Samad Roshan, and Tajalli, Habib. Thu .
"Quantum interference in absorption and dispersion of a fourlevel atom in a doubleband photonic crystal". United States.
doi:10.1103/PHYSREVA.75.023816.
@article{osti_20982192,
title = {Quantum interference in absorption and dispersion of a fourlevel atom in a doubleband photonic crystal},
author = {Entezar, Samad Roshan and Tajalli, Habib},
abstractNote = {The probe absorptiondispersion spectrum of a double Vtype fourlevel atom in a doubleband photonic crystal is investigated. In the model used, the double Vtype transitions are, respectively, coupled by the free vacuum modes and the photonic band gap modes, leading to the two possible types of quantum interference. Three types of zero absorption (transparency) appear in this model. In the first type, there exist two zeroes at the band edge frequencies in the case of isotropic photonic band gap. In the second type, a zero emerges at the middle frequency of two upper levels in the case that the quantum interference takes place in both Vtype transitions. Finally, in the third type, a zero occurs at or around the middle frequency of two upper levels in the case that the quantum interference takes place only in the Vtype transitions coupled to the free vacuum modes. Ultimately, the probe absorptiondispersion spectrum in the case of the singleband photonic band gap reservoirs compared to those of the doubleband photonic band gap reservoirs. The results show that the dispersion property of the system depends on the two types of the quantum interference and the density of states of the photonic band gap reservoir.},
doi = {10.1103/PHYSREVA.75.023816},
journal = {Physical Review. A},
number = 2,
volume = 75,
place = {United States},
year = {Thu Feb 15 00:00:00 EST 2007},
month = {Thu Feb 15 00:00:00 EST 2007}
}

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