THE PHASE EFFECT OF A DRIVING FIELD ON SPONTANEOUS EMISSION IN V-MODEL

YUAN SHI;  GAO JIN-YUE

doi:10.7498/aps.49.1081

THE PHASE EFFECT OF A DRIVING FIELD ON SPONTANEOUS EMISSION IN V-MODEL

Acta Physica Sinica ◽

10.7498/aps.49.1081 ◽

2000 ◽

Vol 49 (6) ◽

pp. 1081

Author(s):

YUAN SHI ◽

GAO JIN-YUE

Keyword(s):

Spontaneous Emission ◽

Phase Effect ◽

Driving Field

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SPONTANEOUS EMISSION SPECTRA AND SIMULATING MULTIPLE SPONTANEOUSLY-GENERATED COHERENCE IN AN N-TYPE MEDIUM

Modern Physics Letters B ◽

10.1142/s0217984907013407 ◽

2007 ◽

Vol 21 (16) ◽

pp. 1015-1026 ◽

Cited By ~ 3

Author(s):

JIA-HUA LI

Keyword(s):

Spectral Line ◽

Spontaneous Emission ◽

Atomic System ◽

Emission Spectra ◽

Frequency Detuning ◽

Driving Field ◽

Spontaneously Generated Coherence ◽

Line Narrowing ◽

Emission Quenching ◽

Spectral Line Narrowing

We investigate the spontaneous emission spectra of a coherently driven four-level cold atomic system. It is shown that a few interesting phenomena such as spectral-line narrowing, spectral-line enhancement, spectral-line suppression, and spontaneous emission quenching can be realized in our system. The spectral-line enhancement and suppression can be conveniently manipulated by appropriately modulating the frequency detuning of the probe driving field. In the dressed-state picture of the probe and coupling fields, we find that this coherently-driven atomic system has three close-lying levels so that multiple spontaneously-generated coherence (SGC) arises. Our considered atomic model can be found in real atoms, such as rubidium or sodium, so a corresponding experiment can be done to observe the expected phenomena related to SGC effect, since no rigorous conditions are required.

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Closed equations of motion for expectation values of collective operators for spontaneous emission in the presence of external driving fields

Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences ◽

10.1098/rsta.1984.0137 ◽

1984 ◽

Vol 313 (1525) ◽

pp. 449-451 ◽

Cited By ~ 1

Keyword(s):

Spontaneous Emission ◽

Equations Of Motion ◽

Projection Technique ◽

Expectation Values ◽

Driving Field ◽

External Driving

By using a modified Robertson projection technique, developed by the author in previous work, three exact closed equations of motion for expectation values of collective atomic operators for spontaneous emission in the presence of a classical driving field are derived.

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