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Discontinuity of dipole-moment matrix elements in ellipsoidally shaped nanoparticles and profiles of spectral lines. / Kereselidze, T.; Tchelidze, T.; Devdariani, A.

в: Opto-electronics Review, Том 26, № 2, 01.05.2018, стр. 134-140.

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Kereselidze, T. ; Tchelidze, T. ; Devdariani, A. / Discontinuity of dipole-moment matrix elements in ellipsoidally shaped nanoparticles and profiles of spectral lines. в: Opto-electronics Review. 2018 ; Том 26, № 2. стр. 134-140.

BibTeX

@article{00dca73891ef48b1987773c584d21073,
title = "Discontinuity of dipole-moment matrix elements in ellipsoidally shaped nanoparticles and profiles of spectral lines",
abstract = "The behaviour of energy levels and optical spectra of a charged particle (electron or hole) confined within a potential well of ellipsoidal shape is investigated as a function of the shape-anisotropy parameter. If two energy levels of the same symmetry intersect in a perturbation-theory approximation, they move apart on direct diagonalization of the appropriate Hamiltonian. The intersection of the energy levels leads to a discontinuity of the corresponding dipole-moment matrix element. The discontinuity of matrix elements is not reflected in the behaviour of transition probabilities which are continuous functions of the shape-anisotropy parameter. The profiles of a spectral line emitted or absorbed by an ensemble of ellipsoidally shaped nanoparticles with a Gaussian distribution of size are calculated and discussed.",
keywords = "Ellipsoidal shape, Nanoparticle, Profile of spectral line, Shape-anisotropy parameter, INTERBAND LIGHT-ABSORPTION, POTENTIAL WELL, ENERGY-LEVELS, OPTICAL-TRANSITIONS, QUANTUM DOTS, ELECTRONIC STATES",
author = "T. Kereselidze and T. Tchelidze and A. Devdariani",
year = "2018",
month = may,
day = "1",
doi = "10.1016/j.opelre.2018.02.006",
language = "English",
volume = "26",
pages = "134--140",
journal = "Opto-electronics Review",
issn = "1230-3402",
publisher = "De Gruyter",
number = "2",

}

RIS

TY - JOUR

T1 - Discontinuity of dipole-moment matrix elements in ellipsoidally shaped nanoparticles and profiles of spectral lines

AU - Kereselidze, T.

AU - Tchelidze, T.

AU - Devdariani, A.

PY - 2018/5/1

Y1 - 2018/5/1

N2 - The behaviour of energy levels and optical spectra of a charged particle (electron or hole) confined within a potential well of ellipsoidal shape is investigated as a function of the shape-anisotropy parameter. If two energy levels of the same symmetry intersect in a perturbation-theory approximation, they move apart on direct diagonalization of the appropriate Hamiltonian. The intersection of the energy levels leads to a discontinuity of the corresponding dipole-moment matrix element. The discontinuity of matrix elements is not reflected in the behaviour of transition probabilities which are continuous functions of the shape-anisotropy parameter. The profiles of a spectral line emitted or absorbed by an ensemble of ellipsoidally shaped nanoparticles with a Gaussian distribution of size are calculated and discussed.

AB - The behaviour of energy levels and optical spectra of a charged particle (electron or hole) confined within a potential well of ellipsoidal shape is investigated as a function of the shape-anisotropy parameter. If two energy levels of the same symmetry intersect in a perturbation-theory approximation, they move apart on direct diagonalization of the appropriate Hamiltonian. The intersection of the energy levels leads to a discontinuity of the corresponding dipole-moment matrix element. The discontinuity of matrix elements is not reflected in the behaviour of transition probabilities which are continuous functions of the shape-anisotropy parameter. The profiles of a spectral line emitted or absorbed by an ensemble of ellipsoidally shaped nanoparticles with a Gaussian distribution of size are calculated and discussed.

KW - Ellipsoidal shape

KW - Nanoparticle

KW - Profile of spectral line

KW - Shape-anisotropy parameter

KW - INTERBAND LIGHT-ABSORPTION

KW - POTENTIAL WELL

KW - ENERGY-LEVELS

KW - OPTICAL-TRANSITIONS

KW - QUANTUM DOTS

KW - ELECTRONIC STATES

UR - http://www.scopus.com/inward/record.url?scp=85045874157&partnerID=8YFLogxK

U2 - 10.1016/j.opelre.2018.02.006

DO - 10.1016/j.opelre.2018.02.006

M3 - Article

AN - SCOPUS:85045874157

VL - 26

SP - 134

EP - 140

JO - Opto-electronics Review

JF - Opto-electronics Review

SN - 1230-3402

IS - 2

ER -

ID: 28407668