Effect of electron–phonon interaction on the third-harmonic generation in a quantum pseudodot

In the paper, the optical properties of GaN wedge-shaped quantum dot (WSQD) under influence both pressure and electron-phonon (e-p) interaction have been investigated. To this end, the energy difference and dipole matrix elements are evaluated by considering the effects of e-p and pressure. Then, the refractive index changes (RICs) and absorption coefficients (ACs) are evaluated. It is deduced that the energy difference and dipole matrix elements reduce by considering the e-p and pressure effects. It is resulted that the pressure enhances the e-p effect on the energy difference. The ACs and RICs move to lower energies by considering the ep and pressure effects. The RICs and ACs are raised in the presence of e-p effect whereas they are reduced with considering the pressure. With considering the e-p and pressure effects on total ACs, it is seen that the peak of AC splits into two peaks.

show abstract

“…Wang et al [22] have studied exciton effect on the optical properties of GaAs/AlGaAs parabolic QDs. The reader can refer to [23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

High pressure and polaron effects on optical properties of GaN wedge-shaped quantum dot

2022

View full text Add to dashboard Cite

show abstract

“…The changed values of these properties are quite encouraging from a technological viewpoint. Thus, we come across a plenty of relevant studies on LDSS physics with proper thrust on dopant contributions [1], [2], [3], [4], [5], [6], [7], [8], [9], [10], [11], [12], [13], [14], [15], [16], [17], [18], [19], [20], [21], [22], [23], [24], [25], [26], [27], [28], [29], [30], [31], [32], [33], [34], [35], [36], [37].…”

Section: Introductionmentioning

confidence: 99%

Influence of noise-binding energy interplay on DC-Kerr effect and electro-absorption coefficient of impurity doped quantum dots

Ghosh

Arif

Ghosh

2019

Heliyon

View full text Add to dashboard Cite

Present investigation focuses on analyzing the role of noise-binding energy (BE) interplay on the correction factors (CF) related to Kerr nonlinearity , DC-Kerr effect (DCKE) and electro-absorption coefficient (EAC) of GaAs quantum dot (QD) contaminated with impurity under the active presence of Gaussian white noise . The dopant impurity is modeled by a Gaussian potential. The noise-BE interplay does not give rise to any new interesting feature in case of CF from that in absence of noise. However, the said interplay prominently influences the DCKE and EAC profiles. This is justified by the emergence of distinct qualitative characteristics in the DCKE and EAC profiles that evidently depend on the mode of introduction of noise.

show abstract

“…Recently, choosing the pseudoharmonic potential (PHP) that includes both harmonic and antidot potential, many investigators studied electron and polaron properties in different semiconductor materials. For example, Khordad et al [10] obtained the e-p interaction influence on the third-harmonic generation in a GaAs QPD. In a two-dimensional GaAs QPD system, Li et al [11] investigated polaron effects of the optical absorption coefficients and refractive index changes.…”

Section: Introductionmentioning

confidence: 99%

Temperature Effects of Electric Field on the First Excited State of Strong Coupling Polaron in a CsI Quantum Pseudodot

Sun¹,

Ding²,

Xiao

2017

Commun. Theor. Phys.

View full text Add to dashboard Cite

Employing variational method of Pekar type (VMPT), this paper investigates the first-excited state energy (FESE), excitation energy and transition frequency of the strongly-coupled polaron in the CsI quantum pseudodot (QPD) with electric field. The temperature effects on the strong-coupling polaron in electric field are calculated by using the quantum statistical theory (QST). The results from the present investigation show that the FESE, excitation energy and transition frequency increase (decrease) firstly and then at lower (higher) temperature regions. They are decreasing functions of the electric field strength.

show abstract

Effect of electron–phonon interaction on the third-harmonic generation in a quantum pseudodot

Cited by 15 publications

References 33 publications

High pressure and polaron effects on optical properties of GaN wedge-shaped quantum dot

High pressure and polaron effects on optical properties of GaN wedge-shaped quantum dot

Influence of noise-binding energy interplay on DC-Kerr effect and electro-absorption coefficient of impurity doped quantum dots

Temperature Effects of Electric Field on the First Excited State of Strong Coupling Polaron in a CsI Quantum Pseudodot

Contact Info

Product

Resources

About