Impurity-related nonlinear optical properties in delta-doped quantum rings: Electric field effects

Restrepo, R.L.; Morales, A. L.; Martı́nez-Orozco, J.C.; Baghramyan, H.M.; Barseghyan, M.G.; Duque, C.A.

doi:10.1016/j.physb.2014.05.004

Cited by 35 publications

(13 citation statements)

References 21 publications

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“…As a result, we frequently find research works that analyze various aspects of the low‐dimensional nanosystems, [ 1–8 ] particularly emphasizing their nonlinear optical (NLO) responses. [ 9–30 ]…”

Section: Introductionmentioning

confidence: 99%

Analyzing Time‐Average Excitation Rate Among Quantum Dot Eigenstates Triggered by Time‐Dependent Noise Strength

Datta¹,

Arif

Roy³

et al. 2022

Physica Status Solidi (b)

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Quantum dots (QDs) are acclaimed low-dimensional nanosystems, where we find complete spatial arrest of the motion of the carriers (electrons and holes). Their extremely small dimension helps them display quantum manifestations through various size-dependent physical properties. These properties can be tuned externally thereby making QDs immensely valuable components of technologically advanced devices. As a result, we frequently find research works that analyze various aspects of the low-dimensional nanosystems, [1][2][3][4][5][6][7][8] particularly emphasizing their nonlinear optical (NLO) responses. The effective confinement potential (ECP) of QD principally controls its energy spectrum and the eigenstates. Thus, modulation of ECP can be useful to tailor its properties and consequent applications in fabricating advanced quantum devices. Doping of impurity to QD influences its ECP, which, in turn, profoundly modulates its physical properties. Consequently, studies delving into the impurity effects in QD and other low-dimensional nanosystems are found to be quite abundant.

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Section: Introductionmentioning

confidence: 99%

Analyzing Time‐Average Excitation Rate Among Quantum Dot Eigenstates Triggered by Time‐Dependent Noise Strength

Datta¹,

Arif

Roy³

et al. 2022

Physica Status Solidi (b)

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“…The influence of lateral electric field on the variations of intraband optical absorption changes for a concentric double QR is handled by Baghramyan et al [16] and to the possibility of controlling the optoelectronic properties with the applied electric field and as well as light polarization are reported [16]. The effect of electric field on the optical responses in the presence of donor impurity is presented by Restrepo and co-workers [17] and also by Duque and coworkers [18]. The impact of donor impurity together with the hydrostatic pressure on the nonlinear optical properties of GaAs QR is analyzed in the other study of Retrepo and his group [19].…”

Section: Introductionmentioning

confidence: 99%

Effect of Ring Radius and Electric Field on the Relative Refractive Index of a GaAs Quantum Ring

DURMUŞLAR

2022

Cumhuriyet Science Journal

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“…The interaction of LDSS with external electromagnetic fields gives rise to linear and nonlinear optical (NLO) responses [9–31] which unfold their immense potential in the fields of quantum computation and in laser technology [32–34] . Added to this, above interaction also opens up new vistas of electronic transport and many other significant phenomena revealed through the interplay between the external AC field and the LDSS confinement potential [34–39] .…”

Section: Introductionmentioning

confidence: 99%

Excitation Dynamics Among Impurity Doped Quantum Dot Eigenstates in a Polychromatic Field: Role of Gaussian White Noise

Datta¹,

Arif

Roy³

et al. 2022

ChemistrySelect

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Current study focuses on realizing the role of Gaussian white noise (GWN) and external sinusoidal polychromatic radiation field (PRF) on the time-average excitation rate (TAER) of impurity doped quantum dot (QD). The PRF induces the transfer of electronic population from the ground state to the excited states in course of time-evolution. The PRF has been envisaged to be composed of four component fields that maintain either a prime or a non-prime frequency ratio. GWN couples with the system additively and multiplicatively. The study highlights the role of various physical parameters, presence of noise, mode of application of noise and the features of PRF (amplitude, phase and type of frequency ratio of the components) in shaping the TAER profiles. The TAER profiles have been found to be enriched with steady growth, steady decline, maximization (useful for obtaining large nonlinear optical response), minimization and saturation (the dynamic freezing). The study reveals promising scope of obtaining desired TAER of doped QD by judicious adjustment/regulation of several control parameters which may bear serious technological implications.

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Impurity-related nonlinear optical properties in delta-doped quantum rings: Electric field effects

Cited by 35 publications

References 21 publications

Analyzing Time‐Average Excitation Rate Among Quantum Dot Eigenstates Triggered by Time‐Dependent Noise Strength

Analyzing Time‐Average Excitation Rate Among Quantum Dot Eigenstates Triggered by Time‐Dependent Noise Strength

Effect of Ring Radius and Electric Field on the Relative Refractive Index of a GaAs Quantum Ring

Excitation Dynamics Among Impurity Doped Quantum Dot Eigenstates in a Polychromatic Field: Role of Gaussian White Noise

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