The nonlinear optical rectification and second harmonic generation of a single electron confined in a multilayer spherical quantum dot

Fakkahi, A.; Kirak, M.; Jaouane, M.; Sali, A.; Ed-Dahmouny, A.; El-Bakkari, K.; Arraoui, R.

doi:10.1007/s11082-023-04730-y

Cited by 11 publications

(1 citation statement)

References 54 publications

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“…Nowadays, both linear and nonlinear optical properties of low-dimensional systems such as quantum wells (QW) [1][2][3], quantum wires [4][5][6] and quantum dots [7][8][9] have attracted great attention and are intensively studied either theoretically [1][2][3][4][5][6][7][8][9] and experimentally [10][11][12][13][14][15][16][17]. The reasons for this interest can be briefly explained as follows: the confinement of electrons in such structures leads to the appearance of discrete energy spectra, thus giving new features to intraband optical responses as is the case of nonlinear optical effects [6,7,9]. Additionally, the nonlinear optical properties of these nanostructures hold significant potential for research and development in optoelectronic device applications.…”

Section: Introductionmentioning

confidence: 99%

Second harmonic generation in Harmonic-Gaussian asymmetric double quantum well: effect of magnetic and intense laser fields

Tuzemen,

Demir,

Dakhlaoui

et al. 2024

Phys. Scr.

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We have theoretically analyzed the effects of externally applied fields (magnetic and intense laser) as well as various structural parameters such as well width, barrier width, barrier height, and structural asymmetry on the second harmonic generation (SHG) coefficients of GaAs/Al0.3Ga0.7As Harmonic-Gaussian asymmetric double quantum wells (QW). The time-independent Schrödinger equation was solved using the diagonalization method and effective mass approximation to obtain the energy eigenvalues and eigenfunctions of the structure. An expression derived within the compact density matrix approach has been used to evaluate the second harmonic generation (SHG) coefficient. Our numerical results indicate that increasing the magnitude of the magnetic (intense laser) field causes the peak positions of SHG to shift towards higher energy regions/blue (lower energy regions/red). On the other hand, as the structural parameters A 1 and A 2 ( k and z 0 ) increase, the peak positions of the SHG coefficients exhibit a shift towards higher energy regions/blue (lower energy regions/red). We expect that the results of our study will contribute to the development of new optoelectronic devices based on the Harmonic-Gaussian asymmetric double quantum well structure.

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Section: Introductionmentioning

confidence: 99%

Second harmonic generation in Harmonic-Gaussian asymmetric double quantum well: effect of magnetic and intense laser fields

Tuzemen,

Demir,

Dakhlaoui

et al. 2024

Phys. Scr.

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Analyzing Normalized Binding Energy of GaAs Quantum Dot Containing Gaussian Impurity: Role of Noise

Bhakti,

Ghosh

2024

Physica Status Solidi (b)

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In the present study, the impurity binding energy (IBE) and the normalized IBE (NIBE) of GaAs quantum dot (QD) are meticulously scrutinized. The QD contains Gaussian impurity as dopant. Gaussian white noise, applied via two different routes (additive and multiplicative), also becomes part of the QD confinement potential. The IBE and NIBE exhibit (depending on presence/absence of noise, mode of entrance of noise and the given physical parameter undergoing change) steady growth, steady fall, and maximization. Over the whole study, the NIBE plots efficiently manifest some intricate features which IBE plots fail to do and establish their greater efficacy over the IBE plots in unveiling the influences of various physical parameters. The findings of the study appear to be quite pertinent in realizing the optical properties of low‐dimensional nanostructures containing impurity and under the aegis of noise.

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Hydrogenic donor-related binding energy and diamagnetic susceptibility in multilayer cylindrical quantum dots under hydrostatic pressure

et al. 2023

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The nonlinear optical rectification and second harmonic generation of a single electron confined in a multilayer spherical quantum dot

Cited by 11 publications

References 54 publications

Second harmonic generation in Harmonic-Gaussian asymmetric double quantum well: effect of magnetic and intense laser fields

Second harmonic generation in Harmonic-Gaussian asymmetric double quantum well: effect of magnetic and intense laser fields

Analyzing Normalized Binding Energy of GaAs Quantum Dot Containing Gaussian Impurity: Role of Noise

Hydrogenic donor-related binding energy and diamagnetic susceptibility in multilayer cylindrical quantum dots under hydrostatic pressure

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