Group velocity of light in V and Λ-types cylindrical quantum dots with electromagnetically induced transparency

Mirzaei, Mohammad sadegh; Argani, Hassan; Raki, Zahra

doi:10.1016/j.spmi.2014.06.011

Cited by 20 publications

(9 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…where If, however, γ 31 = γ 21 as they were taken in many theoretical papers [30][31][32][33][34][35][36][37][38][39][40], we obtain Γ = γ 21 , Ω ref = 0. Therefore ∆ ± p = iγ 21 ± Ω c and equation ( 17) can be written as:…”

Section: Transparency Induced Through Autler-townes Splittingmentioning

confidence: 99%

“…In semiconductor nanostructures, EIT has been experimentally demonstrated in quantum wells [22][23][24][25][26][27] and InGaAs quantum dots [28,29]. Many theoretical papers investigated EIT occurrence in quantum wells [30,31], dots [32][33][34][35][36][37][38] and rings [39][40][41]. However, these theoretical studies treated on the influence of the external fields, temperature and pressure on the transparency window making no difference between EIT and ATS regimes, even though they worked with a rather strong coupling field.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Magnetic field controlled induced transparency by Autler–Townes splitting in pseudo-elliptic quantum ring

2019

View full text Add to dashboard Cite

We theoretically investigated the effects of magnetic field and of the parameters of control and probe lasers on the transparency induced through Autler-Townes splitting (ATS) in GaAs/GaAlAs pseudo-elliptic quantum ring. We showed that if equal decay rates are considered the investigation of the electromagnetically induced transparency phenomenon can be done only in the strong coupling regime. Our study reveals that the quantum system is in a Λ configuration in the absence of external fields but, in the presence of the magnetic field, it may present simultaneously many configurations (of Λ, Ξ and V type) that allow the occurrence of transparency, separated by very narrow regions of magnetic fields where no configuration is active. The magnetic field determines almost periodically the switch between configurations. We demonstrated that in V (Ξ) configurations the ATS requires the greatest (lowest) intensity of the control laser and of the energy of the probe laser.

show abstract

Section: Transparency Induced Through Autler-townes Splittingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Magnetic field controlled induced transparency by Autler–Townes splitting in pseudo-elliptic quantum ring

2019

View full text Add to dashboard Cite

show abstract

“…Using the analog procedure as in the case of the ladder configuration, it can be shown that the interaction Hamiltonian operator for V configuration is given by (Mirzaei et al, 2014):…”

Section: Configurationmentioning

confidence: 99%

Electromagnetically induced transparency in a rectangular quantum dot on a single electron

Pavlović

Lazic

Stevanović

et al. 2019

Facta Univ Phys Chem Technol

View full text Add to dashboard Cite

In this paper, we investigated the realization of electromagnetically induced transparency (EIT) in a rectangular quantum dot (QD) with a single electron in the presence of probe and control laser fields. The lowest three levels of the confined electron that form ladder and V configuration were chosen. We discussed the dependence of density matrix elements for ladder configuration and for V configuration on detunings of the probe field for various values of quantum dot dimensions. This dependence is discussed for both cases, at cryogenic temperatures when spontaneous emission dominates the relaxation mechanism and at room or higher temperatures when dephasing rate cannot be neglected.

show abstract

“…This effect is important since it has potential applications in quantum computers and information storage (Liu et al, 2001;Heinze et al, 2013). (Mirzaei et al, 2014) investigated the group velocity of light in cylindrical quantum dots. (Rezaei et al, 2014) studied the group velocity of light in a two-dimensional parabolic quantum dot.…”

Section: Introductionmentioning

confidence: 99%

Group velocity of light in ladder-type spherical quantum dot with hidrogenic impurity

Pavlović

Stevanović

2016

Facta Univ Phys Chem Technol

View full text Add to dashboard Cite

The present paper analyzes the group velocity of light in a ladder-type spherical quantum dot with on-center hydrogenic impurity. The three level ladder configuration is realized by energy levels of hydrogenic impurity, together with the probe and control laser fields. Group velocity of the probe field is then investigated as a function of the spherical quantum dot radius, probe field frequency, and control laser field intensity.

show abstract

Group velocity of light in V and Λ-types cylindrical quantum dots with electromagnetically induced transparency

Cited by 20 publications

References 15 publications

Magnetic field controlled induced transparency by Autler–Townes splitting in pseudo-elliptic quantum ring

Magnetic field controlled induced transparency by Autler–Townes splitting in pseudo-elliptic quantum ring

Electromagnetically induced transparency in a rectangular quantum dot on a single electron

Group velocity of light in ladder-type spherical quantum dot with hidrogenic impurity

Contact Info

Product

Resources

About