Electromagnetically induced absorption in a four-state system

Taĭchenachev, A. V.; Tumaĭkin, A. M.; Yudin, V. I.

doi:10.1103/physreva.61.011802

Cited by 208 publications

(150 citation statements)

References 29 publications

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“…Note that this EIT is not due to CPT, since the transition F g = 1 → F e = 2 does not have 'dark states' (noninteracting states given byĤ I |DS = 0) [2,27,28] among the ground-state sublevels. This is analogous to the result obtained in [12] which uses the N -atomic scheme. In [12], the role of the ground-state Zeeman coherence, transfer to the excited-state coherence was not discussed.…”

supporting

confidence: 54%

“…For a pump-probe excitation of a degenerate two-level system, EIA may also occur due to the transfer of coherence through spontaneous emission from the excited state [11,12]. Using an N -configuration atom, Taichenachev et al [12] have shown that the sign of the absorption resonance can change, depending on the rate of coherence transfer, and that EIA can turn into enhanced transmission in the case of zero or even a low rate of coherence transfer. EIA in an N -type interaction scheme has also been investigated for various pump and probe intensities with and without transfer of coherence and Doppler broadening in [13], both analytically and numerically.…”

Section: Introductionmentioning

confidence: 99%

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Coherent processes in electromagnetically induced absorption: a steady and transient study

Dimitrijević¹,

Arsenović

Jelenković

2011

New J. Phys.

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Abstract. A perturbation method was used to solve optical Bloch equations (OBEs) for the transition F g = 1 → F e = 2, in order to describe the role of ground-level Zeeman coherences in the formation of electromagnetically induced absorption (EIA). A narrow Lorentzian peak, centered at zero value of the scanning magnetic field, appears in the analytical expression of the second-order correction of a density-matrix element for ground-level Zeeman coherences, (ρ g −1 ,g +1 ) x 2 . Through analytical expressions for lower-order corrections of density-matrix elements, we were able to establish clear relations between the narrow Lorentzian in (ρ g −1 ,g +1 ) x 2 and higher-order corrections of optical coherences, i.e. EIA. We see from analytical expressions that these two resonances have opposite signs and that EIA becomes electromagnetically induced transparency (EIT) in the limit of low efficiency of spontaneous transfer of coherences from excited-level to ground-level Zeeman sublevels. The transient behavior of EIA follows the time evolution of (ρ g −1 ,g +1 ) x 2 . After the coupling laser is turned on, both the Lorentzian peak in (ρ g −1 ,g +1 ) x 2 and EIA reach steady state via over-damped oscillations.

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supporting

confidence: 54%

Section: Introductionmentioning

confidence: 99%

Coherent processes in electromagnetically induced absorption: a steady and transient study

Dimitrijević¹,

Arsenović

Jelenković

2011

New J. Phys.

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“…One sees that the line shapes are not perfectly described by the theoretical line shape (14). As mentioned earlier (and addressed in Appendix B), this is a consequence of the use of an uncoated cell without buffer gas (chosen to have 0 = 1 = 2 ), in which the relaxation is known to be nonexponential, and hence the line shapes to be non-Lorentzian [26].…”

Section: Orientational Dependence Of the Gshementioning

confidence: 96%

“…Some authors model the complex spin structures occurring in alkalis in terms of three-or four-level systems [13,14], yielding analytical results that provide a qualitative description of the main resonance features. Another approach uses time consuming numerical calculations that take the complete spin structure and arbitrary light intensities into account [15,16].…”

Section: A Scope Of the Present Workmentioning

confidence: 99%

Ground-state Hanle effect based on atomic alignment

Breschi

Weis

2012

Phys. Rev. A

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We have studied the ground-state Hanle effect (GSHE) excited by linearly polarized laser light on the D 1 line of cesium atoms. We have solved algebraically the Liouville equation using the irreducible tensor formalism, and derive an analytical expression for the resonance line shapes in a magnetic field of arbitrary direction. The model predictions are in excellent agreement with experimental observations in various field geometries. Our model is valid for arbitrary F → F transitions in the low-power limit. We discuss the relation between the GSHE and electromagnetically induced transparency or absorption. Our approach allows a full understanding of the mechanism of the GSHE and provides tools for quantifying the resonance contrast, a crucial parameter for metrological applications of level crossing resonances.

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“…OMIT in the nonlinear quantum regime has also been investigated [17][18][19][20]. On the other hand, optomechanically induced absorption (OMIA) phenomenon, which is an analog of electromagnetically induced absorption (EIA) investigated in atomic gas [21,22] and superconducting artificial atoms [23], can also be realized in optomechanical setup [13,24,25]. And OMIA is a phenomenon closely related to optomechanically induced amplification [13,14,[26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Phase-dependent optical response properties in an optomechanical system by coherently driving the mechanical resonator

et al. 2015

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We explore theoretically the optical response properties in an optomechanical system under electromagnetically induced transparency condition but with the mechanical resonator being driven by an additional coherent field. In this configuration, more complex quantum coherent and interference phenomena occur. In particular, we find that the probe transmission spectra depend on the total phase of the applied fields. Our study also provides an efficient way to control propagation of a probe field from perfect absorption to remarkable amplification.

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Electromagnetically induced absorption in a four-state system

Cited by 208 publications

References 29 publications

Coherent processes in electromagnetically induced absorption: a steady and transient study

Coherent processes in electromagnetically induced absorption: a steady and transient study

Ground-state Hanle effect based on atomic alignment

Phase-dependent optical response properties in an optomechanical system by coherently driving the mechanical resonator

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