Intersubband, interband transitions, and optical properties of two vertically coupled hemispherical quantum dots with wetting layers

Masoomeh Dezhkam; Abdolnasser Zakery; Alireza Keshavarz

doi:doi:10.3788/COL201614.121904

Chinese Optics Letters, 2016, 14 (12): 121904, Published Online: Aug. 2, 2018

Intersubband, interband transitions, and optical properties of two vertically coupled hemispherical quantum dots with wetting layers Download： 579次

Masoomeh Dezhkam ^1,*Abdolnasser Zakery ²Alireza Keshavarz ³

Author Affiliations

¹ Department of Physics, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran

² Department of Physics, College of Sciences, Shiraz University, Shiraz 71946-84795, Iran

³ Department of Physics, Shiraz University of Technology, Shiraz 71555-313, Iran

Figures & Tables

Fig. 1. Two vertically coupled InAs HQDs with WLs embedded in a GaAs barrier.

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Fig. 2. Electron ground, first, and second excited state energy eigenvalues versus HQD (a) base radius and (b) height for TVCHQDs/WLs.

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Fig. 3. Interband transition energy versus HQD (a) base radius and (b) height for TVCHQDs/WLs.

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Fig. 4. Linear (a) absorption and (b) dispersion, and nonlinear (c) absorption and (d) dispersion of the probe pulse as a function of the probe frequency ωp. The solid and dot-dashed lines correspond to single HQD/WL and TVCHQDs/WLs, respectively.

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Masoomeh Dezhkam, Abdolnasser Zakery, Alireza Keshavarz. Intersubband, interband transitions, and optical properties of two vertically coupled hemispherical quantum dots with wetting layers[J]. Chinese Optics Letters, 2016, 14(12): 121904.

Intersubband, interband transitions, and optical properties of two vertically coupled hemispherical quantum dots with wetting layers Download： 579次

Fig. 1. Two vertically coupled InAs HQDs with WLs embedded in a GaAs barrier.

Fig. 2. Electron ground, first, and second excited state energy eigenvalues versus HQD (a) base radius and (b) height for TVCHQDs/WLs.

Fig. 3. Interband transition energy versus HQD (a) base radius and (b) height for TVCHQDs/WLs.

Fig. 4. Linear (a) absorption and (b) dispersion, and nonlinear (c) absorption and (d) dispersion of the probe pulse as a function of the probe frequency ωp. The solid and dot-dashed lines correspond to single HQD/WL and TVCHQDs/WLs, respectively.

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Intersubband, interband transitions, and optical properties of two vertically coupled hemispherical quantum dots with wetting layers Download： 579次

Fig. 1. Two vertically coupled InAs HQDs with WLs embedded in a GaAs barrier.

Fig. 2. Electron ground, first, and second excited state energy eigenvalues versus HQD (a) base radius and (b) height for TVCHQDs/WLs.

Fig. 3. Interband transition energy versus HQD (a) base radius and (b) height for TVCHQDs/WLs.

Fig. 4. Linear (a) absorption and (b) dispersion, and nonlinear (c) absorption and (d) dispersion of the probe pulse as a function of the probe frequency ωp. The solid and dot-dashed lines correspond to single HQD/WL and TVCHQDs/WLs, respectively.

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