Absorption of Far-Infrared Radiation in Ge/Si Quantum Dots
- 作者: Sofronov A.1, Balagula R.1, Firsov D.1, Vorobjev L.1, Tonkikh A.2, Sarkisyan H.1,3, Hayrapetyan D.3, Petrosyan L.3,4, Kazaryan E.3
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隶属关系:
- St. Petersburg Polytechnic University
- OSRAM Opto Semiconductors GmbH
- Russian–Armenian University
- Jackson State University
- 期: 卷 52, 编号 1 (2018)
- 页面: 59-63
- 栏目: Semiconductor Structures, Low-Dimensional Systems, and Quantum Phenomena
- URL: https://journals.rcsi.science/1063-7826/article/view/202242
- DOI: https://doi.org/10.1134/S1063782618010220
- ID: 202242
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详细
The experimental and theoretical results of studies of optical absorption in doped Ge/Si quantumdot structures in the far-infrared region, corresponding to the energies of transitions of holes from the ground state to the lowest excited size-quantization state, are reported. An analytical theory of the size quantization of holes in a lens-shaped quantum dot is developed in the context of the adiabatic approximation with consideration for pair Coulomb interaction. It is shown that the interaction has no effect on the frequencies of lower interlevel resonances. This fact is representative of generalized Kohn’s theorem satisfied due to the specific geometric shape of the quantum dot. The experimental and theoretical values of the transition energies are in good agreement.
作者简介
A. Sofronov
St. Petersburg Polytechnic University
编辑信件的主要联系方式.
Email: sofronov@rphf.spbstu.ru
俄罗斯联邦, St. Petersburg, 195251
R. Balagula
St. Petersburg Polytechnic University
Email: sofronov@rphf.spbstu.ru
俄罗斯联邦, St. Petersburg, 195251
D. Firsov
St. Petersburg Polytechnic University
Email: sofronov@rphf.spbstu.ru
俄罗斯联邦, St. Petersburg, 195251
L. Vorobjev
St. Petersburg Polytechnic University
Email: sofronov@rphf.spbstu.ru
俄罗斯联邦, St. Petersburg, 195251
A. Tonkikh
OSRAM Opto Semiconductors GmbH
Email: sofronov@rphf.spbstu.ru
德国, Regensburg, 93055
H. Sarkisyan
St. Petersburg Polytechnic University; Russian–Armenian University
Email: sofronov@rphf.spbstu.ru
俄罗斯联邦, St. Petersburg, 195251; Yerevan, 0051
D. Hayrapetyan
Russian–Armenian University
Email: sofronov@rphf.spbstu.ru
亚美尼亚, Yerevan, 0051
L. Petrosyan
Russian–Armenian University; Jackson State University
Email: sofronov@rphf.spbstu.ru
亚美尼亚, Yerevan, 0051; Jackson, MS, 39217
E. Kazaryan
Russian–Armenian University
Email: sofronov@rphf.spbstu.ru
亚美尼亚, Yerevan, 0051