Collaborative Research: Moire Exciton-polariton for Analog Quantum Simulation

合作研究：用于模拟量子模拟的莫尔激子极化

• 批准号: 2344658
• 负责人: Sufei Shi
• 金额: $ 25万
• 依托单位: Rensselaer Polytechnic Institute
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2024
• 资助国家: 美国
• 起止时间: 2024-04-01 至 2027-03-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2344658&HistoricalAwards=false
• 关键词: Collaborative; Research; Moire; Exciton; polariton

Understanding and designing how light interacts with materials play an important role in semiconductor technology, with applications in our daily lives ranging from solar energy harvesting and light-emitting devices to high-speed internet and high-performance computing. Engineering and enhancing this light-matter interaction are critical for advancing new technologies and even the new field of quantum information science and engineering (QISE). One strategy is to couple exciton, an optically excited electron and hole pair, to a nanoscale cavity and form exciton-polariton (EP), which is a half-material and half-light hybrid that inherits the advantages of both worlds. The photon nature allows us to manipulate the EP via optical engineering, and the exciton nature enables strong interaction. The light-matter interaction can be further enhanced in atomically thin semiconductors and engineered by stacking two of these atomic sheets together and precisely controlling their twist angle, forming a semiconducting moiré superlattice. In this proposal, we will design a systematic way to couple the nano-cavities with the semiconducting moiré superlattice to enhance the light-matter interaction to an unprecedented level, in which the device function can be drastically altered even by a single photon. This level of strong light-matter interaction can be utilized to implement photonic quantum simulations, a way to simulate new materials whose properties arise from complicated interactions between electrons. Strategically aligned with the National Quantum Initiative and Semiconductor Technology Initiative, this proposal will develop new course materials to train students for careers in high-demand, cutting-edge semiconductor, optical science, and QISE fields. Hands-on summer workshops on optics and nanofabrication for K-12 and under-represented minority students will be organized. The results from this proposal will be disseminated to both the scientific community and the general public to raise national awareness of the importance of QISE and semiconductor technology innovations.This proposal aims to develop a quantum nonlinear optical device platform to understand and engineer light-matter interactions in two-dimensional (2D) materials for analog quantum simulations. The project will accomplish a hybrid device that couples the robust excitons in a semiconducting moiré superlattice to nanophotonic resonators, forming a quasiparticle known as moiré exciton-polariton (EP), a half-material and half-light hybrid. The exciton in the semiconducting moiré superlattices formed by atomically thin transition metal dichalcogenides (TMDCs) can be tailored with even stronger interaction thanks to the electronic and excitonic flatbands. Therefore, the moiré superlattice hosts fascinating correlated insulating electronic states, and the exciton resonances are modified due to the moiré potential confinement. Strong coupling of the moiré excitons with the ultra-small mode-volume nanophotonic resonators and resonator arrays will lead to a unique moiré-EP platform for studying correlated excitonic physics and realizing nonlinear phonon-phonon interactions down to the single-photon level, paving the way to transformative quantum nano-optoelectronics such as analog quantum simulations. The proposed research will also transform the current state of power-efficient optical information processing and quantum optoelectronics. This proposal will develop education components well integrated with the proposed research to train students for the future workforce in semiconductor, optical science, and QISE fields. This proposal will develop learning opportunities on optics and nanofabrication for K-12 and under-represented minority students. The results from this proposal will be disseminated to a wide scientific audience and shared with the general public.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

了解和设计光与材料的相互作用在半导体中发挥着重要作用，其应用范围从太阳能收集和发光设备到高速互联网和高性能计算工程，并增强这种光与物质的相互作用。对于推进新技术甚至量子信息科学与工程（QISE）的新领域至关重要，一种策略是将激子（光激发电子和空穴对）耦合到纳米级空腔并形成激子极化子（EP），是一个光子性质使我们能够通过光学工程操纵电子电势，而激子性质可以实现强相互作用，在原子薄半导体中可以进一步增强光与物质的相互作用，并可以通过将两个原子片堆叠在一起并精确控制它们的扭转角来进行设计。 ，形成半导体莫尔超晶格在这个提案中，我们将设计一种系统的方法将纳米腔与半导体耦合。莫尔超晶格将光与物质的相互作用增强到前所未有的水平，即使单个光子也可以显着改变器件的功能，这种强光与物质的相互作用水平可用于实现光子量子模拟，这是一种模拟方法。该提案在战略上与国家量子计划和半导体技术计划保持一致，将开发新的课程材料，以培训学生从事高需求、尖端半导体、光学科学和电子科学领域的职业。将为 K-12 和代表性不足的少数族裔学生组织光学和纳米制造实践夏季研讨会。该提案的结果将向科学界和公众传播，以提高全国对​​其重要性的认识。 QISE 和半导体技术创新。该提案旨在开发一个量子非线性光学器件平台，以理解和设计二维 (2D) 材料中的光与物质相互作用，以进行模拟量子模拟。该项目将实现一种耦合鲁棒性的混合器件。半导体莫尔超晶格中的激子到纳米光子谐振器，形成一种称为莫尔激子极化子（EP）的准粒子，这是一种半材料和半光混合体。半导体莫尔超晶格中的激子由原子级薄的过渡金属二硫化物（TMDC）形成。由于电子平带和激子平带，可以定制具有更强的相互作用因此，莫尔条纹。超晶格具有令人着迷的相关绝缘电子态，并且由于莫尔势限制，激子共振被修改，莫尔激子与超小模式体积纳米光子谐振器和谐振器阵列的强耦合将产生独特的莫尔-EP平台。研究相关激子物理并实现单光子水平的非线性声子-声子相互作用，为变革性量子纳米光电子学铺平道路拟议的研究还将改变节能光学信息处理和量子光电子学的现状，该提案将开发与拟议研究完美结合的教育组件，以培训学生成为半导体、光学科学、该提案将为 K-12 和代表性不足的少数族裔学生提供光学和纳米制造的学习机会。该提案的结果将向广大科学受众传播并与公众分享。该奖项由 NSF 颁发。法定使命，并通过使用基金会的智力优点和更广泛的影响审查标准进行评估，被认为值得支持。