国家自然科学基金(11074025)

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Topological structure effect on far-infrared spectra in a GaAs/InAs nanoring
《Chinese Physics B》2012年第3期383-388,共6页谷利英 李艳芳 楚卫东 卫英慧 
Project supported by the National Natural Science Foundation of China (Grant No. 11074025);the National Basic Research Program of China (Grant No. 2011CB922200);the China Academy of Engineering and Physics(‘909’)
On the basis of the growth mechanism of a GaAs/InAs nanoring, we propose a fine model which reflects the confinement details of real nanoring. Through calculations of the two-electron energy and far-infrared （FIR） s...
关键词：NANORING topological structure far-infrared spectrum confinement potential 
Terahertz wave generation in coupled quantum dots
《Chinese Physics B》2012年第3期470-474,共5页马玉蓉 郭世方 段素青 
Project supported by the National Natural Science Foundation of China (Grant Nos. 10874020 and 11074025);the National Basic Research Program of China (Grant No. 2011CB922204)
Based on coupled quantum dots, we present an interesting optical effect in a four-level loop coupled system. Both the two upper levels and the two lower levels are designed to be almost degenerate, which induces a con...
关键词：coupled quantum dot terahertz wave 
Signature of symmetry of laterally coupled quantum dots in far-infrared spectrum
《Chinese Physics B》2012年第2期477-482,共6页Gu Li-Ying Li Yan-Fang Chu Wei-Dong Wei Ying-Hui 
supported by the National Natural Science Foundation of China (Grant No.11074025);the National Basic Research Program of China (Grant No.2011CB922200);a grant from the China Academy of Engineering Physics
We study the effect of structure asymmetry on the energy spectrum and the far-infrared spectrum （FIR） of a lateral coupled quantum dot. The calculated spectrum shows that the parity break of coupled quantum dot resu...
关键词：structure symmetry far-infrared spectrum coupled quantum dot Coulomb interaction 
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