Electric field control of opical transitions in semiconductor superlattice spaces

半导体超晶格空间中光学跃迁的电场控制

基本信息

  • 批准号:
    09831003
  • 负责人:
  • 金额:
    $ 1.28万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
  • 财政年份:
    1997
  • 资助国家:
    日本
  • 起止时间:
    1997 至 1998
  • 项目状态:
    已结题

项目摘要

In order to pursue the electric-field controlability of optical transitions in semiconductor quantum structures, three different-types of GaAs/AIAs superlattices have been investigated and the following results are obtained.1. Electric field effects on optical transitions in an asymmetric double-well superlatticeFor a new-type biperiodic superlattice consisting of asymmetric double-well pairs in a unit period, anticrossings as well as excitonic effects of the optical transitions have been observed and clarified, originating from the resonant coupling between the Stark-ladder states belonging to the wider and narrower wells.2. Electric field effects on optical transitions in a perfectly asymmetric double period superlatticeFor a new-type of perfectly asymmetric superlattice having the well and barrier biperiodicity, the observed transition energy fan diagram and enhanced anticrossings due to stronger couplings through the thinner barriers have been elucidated in the light of theoretical calculations of the confined eigenenergies and the oscillator strengths based on the transfer matrix method.3. Electric field control of optical transitions due to interactions between superlattice ladder and single quantum well statesElectron as well as hole resonances controlled by the applied electric field have been observed in the optical absorption spectra of a monoperiodic superlattice which contains an isolated single quantum well in the middle, and analyzed with the help of transfer matrix calculations within the effective mass approximation.
为了研究半导体量子结构中光跃迁的电场可控性,我们对三种不同类型的GaAs/AlAs超晶格进行了研究,得到了以下结果.电场对非对称双阱超晶格中光跃迁的影响对于一种由单位周期内的非对称双阱对组成的新型双周期超晶格,观察到并阐明了光跃迁的反交叉和激子效应,其起源于宽阱和窄阱的斯塔克梯形态之间的共振耦合.电场对完全非对称双周期超晶格中光跃迁的影响对于一种具有势阱和势垒双周期性的新型完全非对称超晶格,基于转移矩阵方法对束缚本征能和振子强度的理论计算,解释了所观察到的跃迁能扇图和由于较薄势垒的强耦合而增强的反交叉.超晶格梯态与单量子阱态相互作用引起的光跃迁的电场控制在中间含有孤立单量子阱的单周期超晶格的光吸收谱中观察到了由外加电场控制的电子和空穴共振,并在有效质量近似下借助转移矩阵计算进行了分析。

项目成果

期刊论文数量(0)
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T.Nogami,K.Kawasaki,K.Kawashima,K.Fujiwara: "Photocurrent spectroscopic studies of interactions between GaAs/AlAs superlattice stark ladders and GaAs single quantum well states under the electric field." Proc.of 25th International Symposium on Compound S・
T.Nogami、K.Kawasaki、K.Kawashima、K.Fujiwara:“电场下 GaAs/AlAs 超晶格斯塔克斯与 GaAs 单量子阱态之间相互作用的光电流光谱研究。”・
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M.Takeuchi,S.Hinooda,T.Imanishi,D.Ushijima,K.Kawashima, K.Fujiwara: "Oscillator strength of Stark-ladder transitions in an asymmetric double-well GaAs/AlAs superlattice" Physics of Low-Dimensional Structures. 11/12. 137-144 (1997)
M.Takeuchi、S.Hinooda、T.Imanishi、D.Ushijima、K.Kawashima、K.Fujiwara:“非对称双阱 GaAs/AlAs 超晶格中斯塔克梯跃迁的振荡器强度”低维结构物理学。
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    0
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T.Imanishi,M.Takeuchi,K.Kuwashima, K.Fujiwara: "Staggered excitonic resonances of Stark ladder transitions in an asymmetric double-well GaAs/AlAs superlattice" Physica E:Low-Dimensional Systems and Nanostructures. 2. 299-302 (1998)
T.Imanishi、M.Takeuchi、K.Kuwashima、K.Fujiwara:“不对称双阱 GaAs/AlAs 超晶格中 Stark 阶梯跃迁的交错激子共振”Physica E:低维系统和纳米结构。
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T.Nogami,K.Kawasaki,K.Kawashima、 K.Fujiwara: "Photocurrent spectroscopic studies of interactions between GaAs/AlAs superlattice Stark ladders and GaAs single quantum well states under the electric field" Proceedings of 25th International Symposium on Comp
T.Nogami、K.Kawasaki、K.Kawashima、K.Fujiwara:“电场下 GaAs/AlAs 超晶格 Stark 梯子与 GaAs 单量子阱态之间相互作用的光电流光谱研究”第 25 届国际计算机研讨会论文集
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FUJIWARA Kenzo其他文献

FUJIWARA Kenzo的其他文献

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{{ truncateString('FUJIWARA Kenzo', 18)}}的其他基金

Carrier quantum capture and escape mechanisms in semiconductor quantum structures
半导体量子结构中的载流子量子捕获和逃逸机制
  • 批准号:
    16360157
  • 财政年份:
    2004
  • 资助金额:
    $ 1.28万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Quantum capture dynamics between different semiconductor quantum structures
不同半导体量子结构之间的量子捕获动力学
  • 批准号:
    11650020
  • 财政年份:
    1999
  • 资助金额:
    $ 1.28万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Wannier-Stark localization in semiconductor superlattices
半导体超晶格中的 Wannier-Stark 局域化
  • 批准号:
    05044109
  • 财政年份:
    1993
  • 资助金额:
    $ 1.28万
  • 项目类别:
    Grant-in-Aid for international Scientific Research
Changing summer monsoon and environment in tropical Asia
热带亚洲夏季风和环境的变化
  • 批准号:
    04041076
  • 财政年份:
    1992
  • 资助金额:
    $ 1.28万
  • 项目类别:
    Grant-in-Aid for international Scientific Research
Development of Agriculture and Rural Settlements in the Drought Prone Areas, India
印度干旱易发地区的农业和农村住区发展
  • 批准号:
    01041064
  • 财政年份:
    1989
  • 资助金额:
    $ 1.28万
  • 项目类别:
    Grant-in-Aid for international Scientific Research
Development of Agriculture and Rural Settlements in the Drought Prone Areas of West India
西印度干旱易发地区的农业和农村住区发展
  • 批准号:
    63043050
  • 财政年份:
    1987
  • 资助金额:
    $ 1.28万
  • 项目类别:
    Grant-in-Aid for Overseas Scientific Research

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    15H03968
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