Terahertz Acousto-Optics: From Nano-to Picotechnology

太赫兹声光：从纳米到微微技术

• 批准号: 125623522
• 负责人: Professor Dr. Manfred Bayer
• 金额: --
• 依托单位: Rektorat
• 依托单位国家: 德国
• 项目类别: Reinhart Koselleck Projects
• 财政年份: 2009
• 资助国家: 德国
• 起止时间: 2008-12-31 至 2014-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/125623522?language=en
• 关键词: Terahertz; Acousto; Optics; Nano; Picotechnology

The proposal objective is exploration of a novel methodology, based on ultrafast acoustics, for controlling the electronic states in condensed matter systems by high intensitye strain pulses. Generated optically, these strain pulses can be well controlled with respect to their duration in the picosecond (ps) or sub-ps range and their amplitude leading to picometer (pm) crystal lattice distortions. The proposal consists of two parts: In the first one the energy levels of carriers in semiconductor quantum structures embedded in confined photon geometries shall be modulated, leading to a ps-control of energy and intensity of the spontaneous or stimulated emission from optical transitions between these levels. Eventually new regimes of quantum optics may be entered, in which the resonator vacuum field is “shaken” faster than the Rabi inverse spectral width of the optical resonance, or even faster than the inverse Rabi frequency given by the strength of light-matter interaction. Other broad fields of exploratory research will be addressed in the second part. Examples are: (1) The strain pulses may be used to realize running quantum structures moving at a speed close to thatof of sound and thereby potentially transporting carriers; (2) The modulation of electron energy levels will be transferred to other material classes such as strongly correlated materials, superconductors etc. for modifying their properties or inducing phase transitions.(3) The pulses may be used also for microscopy purposes by which internal structures may be imaged with nanometer resolution non-invasively.

该提案的目标是探索一种新的方法，超快声学的基础上，控制凝聚态系统的电子状态的高intensitye应变脉冲。光学产生的，这些应变脉冲可以很好地控制其持续时间在皮秒（ps）或亚ps范围内，其幅度导致皮米（pm）晶格畸变。该方案由两部分组成：第一部分是调制半导体量子结构中嵌入受限光子几何结构中的载流子能级，从而对这些能级之间的光跃迁的自发或受激发射的能量和强度进行ps控制。最终可能会进入量子光学的新领域，其中谐振腔真空场的“振动”速度比光学谐振的拉比反谱宽更快，甚至比光-物质相互作用强度给出的拉比反频率更快。第二部分将讨论探索性研究的其他广泛领域。示例如下：（1）应变脉冲可用于实现以接近声速的速度移动的运行量子结构，从而潜在地传输载流子;（2）电子能级的调制将被转移到其他材料类别，例如强相关材料、超导体等，用于修改它们的性质或诱导相变。(3)脉冲还可以用于显微镜目的，通过该目的可以以纳米分辨率非侵入性地对内部结构进行成像。

项目成果

Filtering of elastic waves by opal-based hypersonic crystal.

• DOI: 10.1021/nl904126m
• 发表时间: 2010-03
• 期刊: Nano letters
• 影响因子: 10.8
• 作者: A. S. Salasyuk;A. Scherbakov;D. Yakovlev;A. Akimov;A. A. Kaplyanskii-A.;Saveliy F. Kaplan;S. A. Grudinkin;A. Nashchekin;A. Pevtsov;V. Golubev;T. Berstermann;C. Brüggemann;M. Bombeck;M. Bayer

Laser mode feeding by shaking quantum dots in a planar microcavity

• DOI: 10.1038/nphoton.2011.269
• 发表时间: 2012-01-01
• 期刊: NATURE PHOTONICS
• 影响因子: 35
• 作者: Brueggemann, C.;Akimov, A. V.;Bayer, M.
• 通讯作者: Bayer, M.

Magnetization precession induced by quasitransverse picosecond strain pulses in (311) ferromagnetic (Ga,Mn)As

• DOI: 10.1103/physrevb.87.060302
• 发表时间: 2013-02-19
• 期刊: PHYSICAL REVIEW B
• 影响因子: 3.7
• 作者: Bombeck, M.;Jaeger, J. V.;Bayer, M.
• 通讯作者: Bayer, M.

Resonant driving of magnetization precession in a ferromagnetic layer by coherent monochromatic phonons

• DOI: 10.1103/physrevb.92.020404
• 发表时间: 2015-07-16
• 期刊: PHYSICAL REVIEW B
• 影响因子: 3.7
• 作者: Jaeger, J. V.;Scherbakov, A. V.;Bayer, M.
• 通讯作者: Bayer, M.

Impact of nanomechanical resonances on lasing from electrically pumped quantum dot micropillars

纳米机械共振对电泵量子点微柱发射激光的影响

• DOI: 10.1063/1.4906611
• 发表时间: 2015
• 期刊: Applied Physics Letters
• 影响因子: 4
• 作者: T. Czerniuk;J. Tepper;A.V. Akimov;S. Unsleber;C. Schneider;M. Kamp;S. Höfling;D.R. Yakovlev;M. Bayer
• 通讯作者: M. Bayer