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Titolo:
Controlling linewidth of resonance fluorescence in the V-configuration of a four-level atom via quantum interference
Autore:
Li, FL; Zhu, SY; Ma, AQ;
Indirizzi:
Hong Kong Baptist Univ, Dept Phys, Hong Kong, Hong Kong, Peoples R China Hong Kong Baptist Univ Hong Kong Hong Kong Peoples R China oples R China Xian Jiao Tong Univ, Dept Appl Phys, Xian 710049, Peoples R China Xian Jiao Tong Univ Xian Peoples R China 710049 710049, Peoples R China Zhuhai Polytech, Zhuhai 519015, Peoples R China Zhuhai Polytech Zhuhai Peoples R China 519015 ai 519015, Peoples R China
Titolo Testata:
JOURNAL OF MODERN OPTICS
fascicolo: 3, volume: 48, anno: 2001,
pagine: 439 - 457
SICI:
0950-0340(200103)48:3<439:CLORFI>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
SPONTANEOUS-EMISSION CANCELLATION; DRIVEN 3-LEVEL SYSTEM; INHIBITED SPONTANEOUS EMISSION; ABSORPTION PROPERTIES; BROADENED RESONANCES; COHERENT FIELDS; INVERSION; SPECTRUM; PHASE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
43
Recensione:
Indirizzi per estratti:
Indirizzo: Li, FL Hong Kong Baptist Univ, Dept Phys, Hong Kong, Hong Kong, Peoples R China Hong Kong Baptist Univ Hong Kong Hong Kong Peoples R China China
Citazione:
F.L. Li et al., "Controlling linewidth of resonance fluorescence in the V-configuration of a four-level atom via quantum interference", J MOD OPT, 48(3), 2001, pp. 439-457

Abstract

The interaction of a four-level atom consisting of one excited state, two upper levels and one ground state is considered. We use one field to drive the transition between the excited state and the ground state, and simultaneously apply another field to couple two transitions from the upper-level doublet to the ground state. We investigate how to control the central linewidth of resonance fluorescence spectrum of the driven transition via quantum interference between two transitions from the upper doublet to the groundstate of the atom. In the case of orthogonal dipole moments for the upper doublet and the ground state the widths of the central line and the sidebands of the resonance fluorescence spectrum are totally controlled by the spontaneous emission rate of the upper doublet when the applying field is sufficiently strong. When the dipole moments are parallel, the central linewidth can be much narrower than the linewidths of spontaneous emission of the excited state and of the upper doublet due to the quantum interference. The smaller the upper doublet splitting, the narrower the central linewidth. Wealso notice that when the upper levels are degenerate the resonance fluorescence spectrum may depend on the initial condition because of the quantum interference.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 14/07/20 alle ore 12:12:33