Manipulation and Control of Coherent States in Exciton-Polariton Systems (MacExP)

激子-极化子系统中相干态的操纵和控制 (MacExP)

基本信息

项目摘要

Strong quantum coupling of excitons and photons in semiconductors results in coherent superpositions of the two components, or quasiparticles called exciton-polaritons. The appearance of such mixed modes is interesting from both the point of view of fundamental and applied research. Strong interparticle interactions result from the exciton component, while extremely low effective mass and high mobility are due to the photonic component. The field of condensation of exciton-polaritons opened up in the previous decade shortly after the demonstration of true Bose-Einstein condensates of dilute atomic gases, which opened a new chapter in the field of quantum optics. This major breakthrough on quasiparticles in solids led to a vast exploration of condensation-related phenomena and phase transitions, such as spontaneous coherence built-up, superfluidity and superconductivity. Even the use of qubits based on polariton Rabi oscillations and novel light sources emitting in the visible or terahertz (THz) range such as polariton lasers and THz bosonic lasers have been proposed. Within the last few years, a few independent efforts have been made to combine THz radiation and polariton systems in experiments, with the aim to study interaction of THz radiation and quantum-well microcavity systems. In this project, a better understanding of how THz radiation and polaritonic gases interact with each other both in the linear and nonlinear regime will be gained, which will pave the way for ultrafast manipulation and control oflight-matter coupling and the development of future practical THz-generation schemes involving polariton systems. This motivates a systematic investigation of THz-induced effects in various configurations involving ultrafast spectroscopy experiments and microcavity polaritons, which are outlined in this project. Rabi oscillations will be directly measured using a digital holography technique and the effects of transient THz pulses on the coherent state will be investigated. Time-resolved photoluminescence studies will further give access to the dynamics of polariton condensates influenced by the presence of pulsed THz radiation. Thereby, the effects of transient electric fields on condensates of polaritons, which are a unique testbed for condensation studies in solids, will be probed. In this context, light will be shed on the manipulation and control of coherent states and the ultrafast switching between a condensed and uncondensed polariton gas or a polaritonic and photonic regime will be explored. Thus, this project will deepen our understanding of phenomena related to THz-exciton-polariton coupling and enhance development at the crossroads of two disciplines with novel and sophisticated experiments, with the ultimate goal of enabling further utilization of light-matter interaction for novel optical quantum technologies and light-source concepts.
半导体中激子和光子的强量子耦合导致两种成分的相干叠加,或称为激子-极化激元的准粒子。从基础研究和应用研究的角度来看,这种混合模式的出现都很有趣。强的粒子间相互作用是由激子成分引起的,而极低的有效质量和高迁移率是由于光子成分。激子-极化激元凝聚的领域在过去十年中,在稀原子气体的真正玻色-爱因斯坦凝聚的演示之后不久就开放了,这在量子光学领域开辟了新的篇章。固体中准粒子的这一重大突破导致了对凝聚相关现象和相变的广泛探索,例如自发相干建立,超流性和超导性。甚至已经提出了使用基于极化激元拉比振荡的量子比特和在可见光或太赫兹(THz)范围内发射的新型光源,诸如极化激元激光器和THz玻色子激光器。在过去的几年中,一些独立的努力已经取得了联合收割机太赫兹辐射和极化激元系统在实验中相结合,旨在研究太赫兹辐射和量子阱微腔系统的相互作用。在本项目中,将更好地理解太赫兹辐射和极化激元气体在线性和非线性区域中如何相互作用,这将为超快操纵和控制光-物质耦合以及发展未来实用的太赫兹产生方案铺平道路。这激发了一个系统的调查太赫兹引起的影响,在各种配置,涉及超快光谱实验和微腔极化激元,这是在这个项目中概述。拉比振荡将直接测量使用数字全息技术和瞬态太赫兹脉冲的相干态的影响将进行研究。时间分辨光致发光的研究将进一步提供访问的脉冲太赫兹辐射的存在下的影响极化激元凝聚体的动力学。因此,瞬态电场对极化激元凝聚体的影响,这是一个独特的实验平台,在固体凝聚研究,将被探讨。在这种情况下,光将洒在相干态的操纵和控制和超快切换之间的凝聚和未凝聚的极化激元气体或极化激元和光子制度将进行探索。因此,该项目将加深我们对太赫兹激子-极化子耦合相关现象的理解,并通过新颖而复杂的实验加强两个学科交叉点的发展,最终目标是进一步利用光-物质相互作用实现新型光量子技术和光源概念。

项目成果

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Privatdozent Dr. Arash Rahimi-Iman其他文献

Privatdozent Dr. Arash Rahimi-Iman的其他文献

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{{ truncateString('Privatdozent Dr. Arash Rahimi-Iman', 18)}}的其他基金

Investigating Self-Mode-Locking in Semiconductor Disk Lasers
研究半导体盘激光器中的自锁模
  • 批准号:
    290461173
  • 财政年份:
    2016
  • 资助金额:
    --
  • 项目类别:
    Research Grants
2D-materials-enhanced semiconductor nanophotonics and quantum technologies
二维材料增强半导体纳米光子学和量子技术
  • 批准号:
    456700276
  • 财政年份:
  • 资助金额:
    --
  • 项目类别:
    Heisenberg Grants

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