ON THE NATURE OF FLUORESCENT SPECTRUM OF A TWO ATOM DICKE MODEL IN A NARROW BANDWIDTH SQUEEZED BATH

1994 ◽  
Vol 08 (01n02) ◽  
pp. 121-135 ◽  
Author(s):  
AMITABH JOSHI ◽  
R. R. PURI
Keyword(s):  
Master Equation ◽  
Dipole Interaction ◽  
Spectral Features ◽  
Resonance Fluorescence ◽  
Driving Field ◽  
Narrow Bandwidth ◽  
Fluorescent Spectrum ◽  
Atomic Dipole ◽  
Dicke Model ◽  
Finite Bandwidth

We discuss the spectrum of resonance fluorescence from a system of two identical coherently driven two-level atoms interacting with a finite bandwidth squeezed bath, including the atomic dipole-dipole interaction between the atoms. The characteristics of the spectral features are studied by solving the master equation analytically in the limit of strong driving field. The comparison of these features with respect to an ordinary bath as well as broadband squeezed bath are also presented.

THE TWO-ATOM DICKE MODEL IN A SQUEEZED VACUUM: THE FLUORESCENT SPECTRUM INCLUDING DIPOLE-DIPOLE INTERACTION

1991 ◽  
Vol 05 (19) ◽  
pp. 3115-3125 ◽  
Author(s):  
R.R. PURI ◽  
AMITABH JOSHI ◽  
R.K. BULLOUGH
Keyword(s):  
Master Equation ◽  
Spectral Characteristics ◽  
Dipole Interaction ◽  
Resonance Fluorescence ◽  
Driving Field ◽  
Squeezed Vacuum ◽  
Fluorescent Spectrum ◽  
Analytic Expressions ◽  
Atomic Dipole ◽  
Dicke Model

The spectrum of resonance fluorescence from a system of two identical coherently driven two-level atoms interacting with a broadband squeezed bath is studied by including the atomic dipole-dipole interaction. The spectral characteristics are studied by solving the master equation numerically and also by deriving the analytic expressions in the limit of strong driving field.

UNUSUAL LASER-INDUCED ABSORPTIONS OF Ca+-FORMALDEHYDE: MOLECULAR ORBITAL INTERACTION

2011 ◽  
Vol 10 (03) ◽  
pp. 349-358 ◽  
Author(s):  
BING JIN ◽  
DONGSHENG WANG ◽  
JIANYONG LIU
Keyword(s):  
Molecular Orbital ◽  
Excited States ◽  
Dipole Interaction ◽  
Basis Sets ◽  
Orbital Interaction ◽  
Spectral Features

We have theoretically studied the photodissociation spectroscopy of Ca +-formaldehyde complex using the TD-B2-PLYP method. The SDD pseudopotential and basis sets for Ca and 6-31++G (2df, 2pd) basis sets for C , H , and O atoms were employed in all calculations. In this way, we have reassigned the photodissociation spectroscopy of this complex. All experimentally observed spectral features can be well explained by our calculation. Besides the charge–dipole interaction, a strong molecule–orbital interaction also exists in the excited states and plays an important role in photoexcitation of the Ca+–CH2O complex.

Side bands in collective resonance fluorescence

1985 ◽  
Vol 63 (3) ◽  
pp. 335-338
Author(s):  
H. R. Zaidi
Keyword(s):  
Fluorescence Spectrum ◽  
Line Width ◽  
Rabi Frequency ◽  
Interaction Model ◽  
Dipole Interaction ◽  
Markov Approximation ◽  
Resonance Fluorescence ◽  
Pump Field ◽  
Field Frequency ◽  
Side Band

The fluorescence spectrum of a system of strongly driven atoms, contained in a region that is small compared with the wavelength, is calculated using a screened interaction model. Coulomb dipole–dipole interaction is neglected, but a Markov approximation is not made. The side bands at ω′ = ω ± Ω and ω ± 2Ω are investigated in detail (ω′(ω) is the emitted photon (pump field) frequency; Ω is the Rabi frequency). The intensity and line width of the side bands at ω ± 2Ω is reduced owing to S breaking in our model. Non-Markovian corrections split the side band at ω ± Ω.

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