Optical evidence for Aharonov–Bohm effect in quantum tubes

Nomura, Shintaro; Tsumura, Kohei; Mohan, Premila; Motohisa, Junichi; Fukui, Takashi

doi:10.1016/j.physe.2007.08.007

Cited by 5 publications

(2 citation statements)

References 6 publications

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“…This quantum interference effect rises an interest due to its potential applications in the field of quantum information storage [24][25][26] . There is only a limited number of publications reporting the optical Aharonov-Bohm effect in various structures including self assembled quantum rings 27,28 , quantum tubes 29 , type-II QDs columns 30 . Quite recently, this effect has been also observed in a nanowire heterostructure where the carrier separation takes place at type II wurtzite/zinc blende crystal phase interfaces 31 .…”

Section: Introductionmentioning

confidence: 99%

Carrier separation in type-II quantum dots inserted in (Zn,Mg)Te/ZnSe nanowires

et al. 2023

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Section: Introductionmentioning

confidence: 99%

Carrier separation in type-II quantum dots inserted in (Zn,Mg)Te/ZnSe nanowires

et al. 2023

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“…Present work on QTs theoretically considered magnetic states, 24,25 reported experimental evidence of the Aharonov-Bohm effect, 26 and treated optical properties, 27 but the influence of the dielectric dismatch between the nanostructure and the environment has been studied so far only for conventional quantum wires 21 and freestanding nanowires. 20 Here we will consider also a dielectric mismatch between the core and the shell, which will lead to a considerable change in the electron-hole interaction, as shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

Semiconductor quantum tubes: Dielectric modulation and excitonic response

2010

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We study theoretically the optical properties of quantum tubes, one-dimensional semiconductor nanostructures where electrons and holes are confined to a cylindrical shell. In these structures, which bridge between two-dimensional and one-dimensional systems, the electron-hole interaction may be modulated by a dielectric substance outside the quantum tube and possibly inside its core. We use the exact Green's function for the appropriate dielectric configuration and exact diagonalization of the electron-hole interaction within an effective-mass description to predict the evolution of the exciton binding energy and oscillator strength. Contrary to the homogeneous case, in dielectrically modulated tubes, the exciton binding is a function of the tube diameter and can be tuned to a large extent by structure design and proper choice of the dielectric media.

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Optical properties in a two-dimensional quantum ring: Confinement potential and Aharonov–Bohm effect

Liang

Xie

Shen

2011

Optics Communications

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Optical properties of a two-dimensional quantum ring with pseudopotential in the presence of an external magnetic field and magnetic flux have been theoretically investigated. Our results show that both of the pseudopotential and magnetic field can affect the third nonlinear susceptibility and oscillator strength. In addition, we found that the oscillator strength and the absolute value of the resonant peak of the linear, non-linear and total absorption coefficient vary periodically with magnetic flux, while the resonant peak value of the linear, non-linear and total refractive index changes decreases as magnetic flux increases.

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Optical evidence for Aharonov–Bohm effect in quantum tubes

Cited by 5 publications

References 6 publications

Carrier separation in type-II quantum dots inserted in (Zn,Mg)Te/ZnSe nanowires

Carrier separation in type-II quantum dots inserted in (Zn,Mg)Te/ZnSe nanowires

Semiconductor quantum tubes: Dielectric modulation and excitonic response

Optical properties in a two-dimensional quantum ring: Confinement potential and Aharonov–Bohm effect

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