Optics of embedded semiconductor nano-objects using a hybrid model: bare versus dressed polarizabilities

Wijers, Christianus M.J.; Chu, Jiun‐Haw; Voskoboynikov, O.

doi:10.1140/epjb/e2006-00443-y

Cited by 7 publications

(11 citation statements)

References 22 publications

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“…3. Our calculation results show that we always can distinguish them if γ = 1 meV [5][6][7]. We stress that Ψ-angle peak-topeak ratio replicates the peak-to-peak ratio for the probability density of the electronic states corresponding to the transitions (see Fig.…”

Section: Simulation Resultssupporting

confidence: 68%

“…For reason of clarity we concentrate on the lowest three energy electronic states p e1 = {1, 0, +1}, p e2 = {2, 0, +1}, p e3 = {3, 0, +1}, the highest heavy hole state p h1 = {1, 0, +1}, and inter-band optical transitions between them satisfying the selection rule: l h -l e = 0 (see Ref. [5][6][7]14]). The corresponding allowed transition energies are shown Fig.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…We show that the changes in the quantum mechanical behaviour of the molecules can be made observable by monitoring changes of the ellipsometric parameters Ψ and Δ in the magneto-optical response of layers of such nano-objects. rived in [7] as a measurable quantity) we can present by the expression…”

Section: Theorymentioning

confidence: 99%

“…For the system of the embedded nano-objects each presented by the discrete dipole strength p k we have to solve the system of equations [7]:…”

Section: ˆˆˆˆmentioning

confidence: 99%

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Magneto‐optics of layers of triple quantum dot molecules

Minh

Voskoboynikov

2009

Physica Status Solidi (b)

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We consider theoretically the impact of the coherent manipulation of electronic states in the triple vertical lens‐shaped circular InAs/GaAs quantum dot molecules on the collective magneto‐optical reflection from layers of those nano‐objects. The quantum dots have substantially different diameters in contrast to most of the known simulations. We demonstrate a possibility to drive molecular electronic ground states (to redistribute electronic wave functions within the molecule) by applying an external magnetic field along the system's growth direction. The change in the states leads to the redistribution of the intensity of the reflectance and absorbance peaks in the collective magneto‐optical response of a layer of the triple quantum dot molecules. Varying the distance between quantum dots within the layer one can study optically the transition from “molecular” to “atomic” configuration. We show that the changes in the quantum mechanical behaviour of the molecules can be made observable by monitoring changes of the ellipsometric parameters Ψ and Δ in the magneto‐optical response of layers of such nano‐objects. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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Section: Simulation Resultssupporting

confidence: 68%

Section: Simulation Resultsmentioning

confidence: 99%

Section: Theorymentioning

confidence: 99%

“…For the system of the embedded nano-objects each presented by the discrete dipole strength p k we have to solve the system of equations [7]:…”

Section: ˆˆˆˆmentioning

confidence: 99%

See 2 more Smart Citations

Magneto‐optics of layers of triple quantum dot molecules

Minh

Voskoboynikov

2009

Physica Status Solidi (b)

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“…The influence of the surrounding semiconducting matrix on the polarizability of the nano objects has been imposed using a generalization of the hybrid discrete-continuum model. 16,24,25 The generalization allows us to simulate the nano objects of arbitrary shapes. We show that parameters of the electron and hole quantum states localized in the nano objects can be retrieved from the collective magneto-optical response of systems of such nano objects.…”

Section: Introductionmentioning

confidence: 99%

Magneto-optics of layers of double quantum dot molecules

Thu

Voskoboynikov

2009

Phys. Rev. B

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We present a general treatment of the magneto-optical response from systems of semiconductor nano objects of arbitrary shapes. Our theoretical hybrid method allows us to simulate the coherent manipulation of the quantum states of electrons and holes in nano objects and monitor that by means of analysis of the collective magneto-optical response from the system. As an example of the method implementation we consider the coherent manipulation of the electronic states of a asymmetrical double InAs quantum dot molecule embedded in GaAs matrix and the collective magneto-optical properties of a layer of the molecules. Our simulation results show that changes in the quantum-mechanical configuration of the quantum dot molecules can be observable by monitoring changes in the ellipsometric data obtained for layers made from these nano objects. The ellipsometric data clearly represent the quantum mechanics of the molecules.

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Magneto-optics of two dimensional arrays of semiconductor quantum dot molecules

Thu

Voskoboynikov

2010

Physica E: Low-dimensional Systems and Nanostructures

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Optics of embedded semiconductor nano-objects using a hybrid model: bare versus dressed polarizabilities

Cited by 7 publications

References 22 publications

Magneto‐optics of layers of triple quantum dot molecules

Magneto‐optics of layers of triple quantum dot molecules

Magneto-optics of layers of double quantum dot molecules

Magneto-optics of two dimensional arrays of semiconductor quantum dot molecules

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