Engineering Room-Temperature Exciton-Polgritonics

工程室温激子聚合物

• 批准号: RGPIN-2017-05034
• 负责人: Kim, NaYoung
• 金额: $ 5.54万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=751608
• 关键词: Engineering; Room; Temperature; Exciton; Polgritonics

The demand for the rapid and secure transfer of information and for increasingly complex computational power continues to grow as society's reliance on technology increases. To develop multi-functional systems to meet these pressing demands, researchers are pursuing the creation of energy-efficient compact photonic and optoelectronic devices governed by novel physical processes in materials and nanostructures. Through the proposed program, we will engineer exciton-polaritonic devices as a scalable solid-state photonic platform. Exciton-polaritons have a dual light-matter nature, resulting from their strongly coupled cavity photons and quantum-well excitons. The matter portion bestows strong nonlinearity and spontaneous coherence arising from particle-particle interactions, and the wave portion bestows ultrafast propagation arising from its extremely light mass. These properties enable us to build ultralow power light sources and optical logic devices, with a predicted 10-100 fold power gain compared to traditional devices. The innate planar structure supports integration of other components for scalability.We aim to develop room-temperature (RT) exciton-polaritonics that offer low power consumption, small physical footprint, pristine single-mode quality and increased output power; inherent features that arise from the quantum Bose nature. RT operation eliminates the need for expensive cryogenic equipment, low power operation is required for building extremely dense integrated systems, and increased output power enables cascade and parallel processes for reaching expanded levels of computational complexity. Our approach will be to investigate transition-metal dichalcogenides as a new material candidate for RT operation because excitons in this class are stable against RT thermal energy due to a huge exciton-binding energy. We will design and fabricate suitable microcavities, in which these new materials will be embedded to form stable RT exciton-polaritons.The successful demonstration of these devices, realized through this program, will advance progress in optical communication and data storage, optoelectronics, and integrated photonic circuits with polariton-based light emitting sources, switching transistors, and sensors. Our devices will also serve as a testbed to study exotic quantum phases such as Bose-Einstein condensation, superfluidity and vortex formation at RT. Engineering and explorative aspects of the proposed research will furnish an exceptional educational platform, through which HQP will internalize comprehensive understanding of fundamental physics and acquire state-of-the-art optical and electrical techniques. This will leave them well equipped to excel as leaders in sectors that will become increasingly important to Canada's economy, such as quantum optical computation and communications.

随着社会对技术依赖的增加，对快速和安全的信息传输以及对日益复杂的计算能力的需求也在不断增长。为了开发多功能系统以满足这些迫切的需求，研究人员正在寻求创建由材料和纳米结构中的新物理过程控制的节能紧凑型光子和光电器件。通过拟议的计划，我们将工程激子极化激元器件作为一个可扩展的固态光子平台。激子-极化激元具有光-物质双重性质，这是由它们的强耦合腔光子和量子阱激子引起的。物质部分赋予强烈的非线性和自发相干性，这是由粒子-粒子相互作用引起的，而波部分赋予超快传播，这是由其极轻的质量引起的。这些特性使我们能够构建超低功率光源和光学逻辑器件，与传统器件相比，预计功率增益为10-100倍。我们的目标是开发具有低功耗、小物理尺寸、原始单模质量和更高输出功率的室温激子-极化激元器件，这些特性源自量子玻色的本质。RT操作消除了对昂贵的低温设备的需要，低功率操作是构建极其密集的集成系统所必需的，并且增加的输出功率使得级联和并行过程能够达到扩展的计算复杂性水平。我们的方法将是调查过渡金属dichalcogenides作为一种新的材料候选RT操作，因为在这一类激子是稳定的RT热能，由于一个巨大的激子结合能。我们将设计和制造合适的微腔，将这些新材料嵌入其中，形成稳定的RT激子-极化激元。通过该计划实现的这些器件的成功演示，将推动光通信和数据存储、光电子学以及基于极化激元的发光源、开关晶体管和传感器的集成光子电路的进展。我们的设备也将作为一个试验平台，研究奇异的量子相，如玻色-爱因斯坦凝聚，超流和涡流形成在RT.工程和探索方面的拟议研究将提供一个特殊的教育平台，通过HQP将内化基础物理学的全面理解，并获得最先进的光学和电学技术。这将使他们有能力成为对加拿大经济越来越重要的行业的领导者，例如量子光学计算和通信。