| Franz-Keldysh effect and dynamical Franz-Keldysh effect of cylindrical quantum wires |
| Zhang, T. Y.; Zhao, W.
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| 作者部门 | 瞬态光学国家重点实验室
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| 2006-06-01
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| 发表期刊 | PHYSICAL REVIEW B
 |
| ISSN | 1098-0121
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| 卷号 | 73期号:24页码:245337-1-6 |
| 摘要 | We investigate the interband optical absorption spectra near the band edge of a cylindrical semiconductor quantum wire in the presence of a static electric field and a terahertz electric field polarized along the axis. Optical absorption spectra are nonperturbatively calculated by solving the low-density semiconductor Bloch equations in real space and real time. The influence of the Franz-Keldysh (FK) effect and dynamical FK effect on the absorption spectrum is investigated. To highlight the physics behind the FK effect and dynamical FK effect, the spatiotemporal dynamics of the polarization wave packet are also presented. Under a reasonable static electric field, substantial and tunable absorption oscillations appear above the band gap. A terahertz field, however, will cause the Autler-Townes splitting of the main exciton peak and the emergence of multiphoton replicas. The presented results suggest that semiconductor quantum wires have potential applications in electro-optical devices. |
| 文章类型 | Article
|
| 学科领域 | 数理科学和化学
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| WOS标题词 | Science & Technology
; Physical Sciences
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| DOI | 10.1103/PhysRevB.73.245337
|
| 收录类别 | SCI
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| 关键词[WOS] | SIDE-BAND GENERATION
; NONLINEAR-OPTICAL-PROPERTIES
; ELECTRIC-FIELD
; SEMICONDUCTOR SUPERLATTICES
; ABSORPTION EDGE
; WELL STRUCTURES
; MAGNETIC-FIELD
; DRIVEN
; RENORMALIZATION
; MICROCAVITIES
|
| 语种 | 英语
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| WOS研究方向 | Physics
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| WOS类目 | Physics, Condensed Matter
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| WOS记录号 | WOS:000238696900098
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| 引用统计 |
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| 文献类型 | 期刊论文
|
| 条目标识符 | http://ir.opt.ac.cn/handle/181661/7296
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| 专题 | 瞬态光学研究室
|
| 作者单位 | Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710068, Peoples R China
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推荐引用方式
GB/T 7714 |
Zhang, T. Y.,Zhao, W.. Franz-Keldysh effect and dynamical Franz-Keldysh effect of cylindrical quantum wires[J]. PHYSICAL REVIEW B,2006,73(24):245337-1-6.
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| APA |
Zhang, T. Y.,&Zhao, W..(2006).Franz-Keldysh effect and dynamical Franz-Keldysh effect of cylindrical quantum wires.PHYSICAL REVIEW B,73(24),245337-1-6.
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| MLA |
Zhang, T. Y.,et al."Franz-Keldysh effect and dynamical Franz-Keldysh effect of cylindrical quantum wires".PHYSICAL REVIEW B 73.24(2006):245337-1-6.
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