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Polariton-based single-photon sources

基于极化子的单光子源

基本信息

批准号：
270542009
负责人：
Professor Dr. Christian Schneider
金额：
--
依托单位：
Institut für Experimentalphysik
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2015
资助国家：
德国
起止时间：
2014-12-31 至 2020-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/270542009?language=en
关键词：
Polariton based single photon sources

项目摘要

Single photons with tailored properties are fundamental resources in quantum optics, communication, computing, and metrology. However, creating these photon states is not entirely straightforward, and while there is a variety of methods that achieve this, they all suffer from either the complexity of the setup required or the fact that the system is hardly scalable. A practically viable implementation is thus still missing. In this proposal, we would like to address this problem by experimentally studying the system of microcavity polaritons, which are the coherent superposition of a photon confined to a short cavity, and a quantum well exciton. A flying photon is generated, when the polariton decays. A number of theoretical works have discussed the potential of polaritons for creating quantum-correlated photons, and there are already a couple of experimental demonstrations of quantum effects, such as, first-order correlations, and squeezing. The big advantage of the polariton system over schemes relying on the implementation of individual quantum emitters is its inherent scalability, robustness, and the possibility of tailoring specific properties, such as the wavelength, polarisation, or the temporal attributes of the generated light. In order to achieve the stated goals, we intend to utilise the latest developments in photonic engineering and theoretical semiconductor quantum optics. We propose to study three possible approaches, all based on III-V semiconductor systems. Firstly, we will fabricate submicrometer-sized pillars with integrated quantum well excitons to provide the photonic non-linearity, i.e., the strong photon-photon interaction required for generating the quantum correlations. Secondly, we will exploit the intricate quantum interference between coupled pillars. And third, we will apply a flexible, hybrid approach, where the cavity is tunable even after fabrication. This will allow us to explore a large segment of the parameter space in a time- and cost-efficient manner.Achieving polariton blockade and single photon emission from the proposed quantum well microcavity systems would certainly be a major breakthrough with impacts far beyond the community of polaritonic research. The scheme based on the coupled cavities is especially interesting, since that phenomenon has not experimentally been demonstrated in any physical system. The possibility to create single photons on demand without individual quantum emitters could lead to entirely novel schemes of highly integrated quantum optics on chip, and creating polariton number states could pave the way towards the implementation of quantum emulation schemes based on bosonic quantum fluids in semiconductors.

具有定制性质的单光子是量子光学、通信、计算和计量学中的基本资源。然而，创建这些光子状态并不完全简单，虽然有各种方法可以实现这一点，但它们都受到所需设置的复杂性或系统难以扩展的事实的影响。因此，仍然缺乏切实可行的执行办法。在这个提议中，我们想通过实验研究微腔极化激元系统来解决这个问题，微腔极化激元是被限制在短腔中的光子和量子阱激子的相干叠加。当极化激元衰减时，会产生一个飞行的光子。许多理论工作已经讨论了极化激元产生量子关联光子的潜力，并且已经有一些量子效应的实验证明，例如一阶关联和压缩。极化激元系统相对于依赖于单个量子发射器的实现的方案的最大优势是其固有的可扩展性、鲁棒性以及定制特定属性（例如所生成的光的波长、偏振或时间属性）的可能性。为了实现既定目标，我们打算利用光子工程和理论半导体量子光学的最新发展。我们建议研究三种可能的方法，都基于III-V族半导体系统。首先，我们将制造具有集成量子阱激子的亚微米尺寸的柱以提供光子非线性，即，产生量子关联所需的强光子-光子相互作用。其次，我们将利用耦合柱之间复杂的量子干涉。第三，我们将采用灵活的混合方法，即使在制造之后，腔也是可调的。这将使我们能够以时间和成本效益的方式探索参数空间的大部分。从拟议的量子阱微腔系统中实现极化激元阻断和单光子发射肯定会是一个重大突破，其影响远远超出极化激元研究领域。基于耦合腔的方案特别有趣，因为这种现象还没有在任何物理系统中得到实验证明。在没有单独量子发射器的情况下按需创建单个光子的可能性可能会导致芯片上高度集成量子光学的全新方案，并且创建极化子数态可以为基于半导体中玻色子量子流体的量子仿真方案的实现铺平道路。

项目成果

期刊论文数量（9）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Electrical and optical switching in the bistable regime of an electrically injected polariton laser

DOI：
10.1103/physrevb.96.041301
发表时间：
2017-07-10
期刊：
PHYSICAL REVIEW B
影响因子：
3.7
作者：
Klaas, M.;Sigurdsson, H.;Hoefling, S.
通讯作者：
Hoefling, S.

Nonresonant spin selection methods and polarization control in exciton-polariton condensates

激子-极化子凝聚体中的非共振自旋选择方法和极化控制

DOI：
10.1103/physrevb.99.115303
发表时间：
2019
期刊：
Physical Review B
影响因子：
3.7
作者：
Egorov;Nalitov;Marković;Suchomel;Harder;Betzold;Ostrovskaya;Kavokin;Klembt
通讯作者：
Klembt

Platform for Electrically Pumped Polariton Simulators and Topological Lasers.

电泵极化子模拟器和拓扑激光器平台

DOI：
10.1103/physrevlett.121.257402
发表时间：
2018
期刊：
Physical review letters
影响因子：
8.6
作者：
Suchomel;Holger;Sebastian Klembt;Tristan H. Harder;Martin Klaas;Oleg A. Egorov;Karol Winkler;Monika Emmerling;Ronny Thomale;Sven Höfling;Christian Schneider
通讯作者：
Christian Schneider

High quality factor GaAs microcavity with buried bullseye defects

DOI：
10.1103/physrevmaterials.2.052201
发表时间：
2018-05
期刊：
Physical Review Materials
影响因子：
3.4
作者：
K. Winkler;N. Gregersen;T. Häyrynen;B. Bradel;A. Schade;M. Emmerling;M. Kamp;S. Höfling;C. Schneider
通讯作者：
K. Winkler;N. Gregersen;T. Häyrynen;B. Bradel;A. Schade;M. Emmerling;M. Kamp;S. Höfling;C. Schneider

Signatures of a dissipative phase transition in photon correlation measurements