Research output: Contribution to journal › Article › peer-review
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.
Original language | English |
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Pages (from-to) | 134-140 |
Number of pages | 7 |
Journal | Opto-electronics Review |
Volume | 26 |
Issue number | 2 |
DOIs | |
State | Published - 1 May 2018 |
ID: 28407668