RII Track-4: van der Waals polaritonics for mid-infrared light emitters

RII Track-4：中红外光发射器的范德华极化激元

• 批准号: 2033454
• 负责人: Siyuan Dai
• 金额: $ 22.81万
• 依托单位: Auburn University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-02-01 至 2025-01-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2033454&HistoricalAwards=false
• 关键词: RII; Track; van; der; Waals

The mid-infrared (mid-IR) is part of optical spectrum that is invisible to the naked eye but important for a wealth of technologies, including biochemical sensing, gas monitoring, thermal illumination and energy control, security and defense, and many others. Despite these vital applications, research and development in the mid-IR have been stymied due to the sparsity of efficient light sources in this wavelength range. This fellowship project aims to develop bright mid-IR light sources by coupling nanometer scale material dots (quantum dots) with propagating nanoscale optical waves (polaritons). By controlling the properties of the polaritons in layer materials, the research team plan to enhance the intensity of light emitted from quantum dots. The PI will collaborate with researchers at the University of Texas at Austin (UT Austin) to synthesis quantum dots-polariton structures and to perform the mid-IR optical characterizations. This fellowship project is expected to develop useful mid-IR light sources that will benefit a broad range of applications listed above. The project will also broaden the research capabilities of the PI and Auburn University in IR optoelectronics and quantum-engineered material synthesis, as well as establish long-term collaborations between Auburn University and other institutions including UT Austin.The primary goal of the project is to develop bright and controllable light emitters for the technically important mid-IR spectra range where light wavelength spans from 3 to 20 m. For this purpose, the PI proposes to incorporate current quantum dots mid-IR emitters with polaritonic van der Waals (vdW) materials. Polaritons in vdW materials are highly confined and relatively low-lossy, therefore possess high photonic density of states to enhance the mid-IR light emission by increasing the radiative recombination rate of electrons in quantum dots. The PI and his collaborators will grow mid-IR semiconductor quantum dots using the state-of-the-art molecular beam epitaxy at UT Austin. The research team will then fabricate vdW polaritonic materials on top of the quantum dots and fine tune the top surface structure to optimize light emission into the free space. Graphene and configurable vdW heterostructures will be involved to implement dynamic tunability for the light emitters. The quantum dot-polariton emitters will finally be characterized by mid-IR photoluminescence spectroscopy to test the light emission performance. The successful demonstration of this project will deliver bright and dynamically tunable mid-IR light sources and complement current knowledge in light-matter interactions with a better understanding of quantum dot – polariton interactions.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.

中红外(MID-IR)是肉眼不可见的光谱的一部分，但对许多技术都很重要，包括生化传感、气体监测、热照明和能源控制、安全和防御等。尽管有这些重要的应用，但由于该波长范围内的有效光源稀少，中红外的研究和开发一直受到阻碍。该奖学金项目旨在通过将纳米级材料点(量子点)与传播的纳米级光波(极化子)相耦合来开发明亮的中红外光源。通过控制层状材料中极化子的性质，研究小组计划增强量子点发出的光的强度。PI将与德克萨斯大学奥斯汀分校(UT Austin)的研究人员合作，合成量子点-极化结构，并执行中红外光学表征。该研究金项目预计将开发有用的中红外光源，使上文所列的广泛应用受益。该项目还将扩大PI和奥本大学在红外光电子学和量子工程材料合成方面的研究能力，并与奥本大学和包括奥斯汀大学在内的其他机构建立长期合作关系。该项目的主要目标是为技术上重要的中红外光谱范围开发明亮和可控的光发射器，其中光波长从3到20m。为此，PI建议将现有的量子点中红外发射器与极化范德华材料相结合。VDW材料中的极化子高度受限，损耗相对较低，因此具有高的光子态密度，通过增加量子点中电子的辐射复合率来增强中红外光发射。PI和他的合作者将在德克萨斯大学奥斯汀分校使用最先进的分子束外延生长中红外半导体量子点。然后，研究小组将在量子点的顶部制造VDW极化材料，并微调顶部表面结构，以优化向自由空间的光发射。石墨烯和可配置的VDW异质结构将被用于实现光发射器的动态可调谐。最后利用中红外光致发光光谱对量子点偏振光发射体进行表征，以测试其发光性能。该项目的成功演示将提供明亮且动态可调的中红外光源，并通过更好地了解量子点-偏振相互作用来补充当前在光-物质相互作用方面的知识。该奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

Charge-transfer hyperbolic polaritons in α-MoO3/graphene heterostructures

• DOI: 10.1063/5.0173562
• 发表时间: 2024-06-01
• 期刊: APPLIED PHYSICS REVIEWS
• 影响因子: 15
• 作者: Shen，J.;Chen，M.;Dai，S.
• 通讯作者: Dai，S.

Enhanced Label-Free Nanoplasmonic Cytokine Detection in SARS-CoV-2 Induced Inflammation Using Rationally Designed Peptide Aptamer.

• DOI: 10.1021/acsami.2c14748
• 发表时间: 2022-11-02
• 期刊: ACS APPLIED MATERIALS & INTERFACES
• 影响因子: 9.5
• 作者: He, Jiacheng;Zhou, Lang;Huang, Gangtong;Shen, Jialiang;Chen, Wu;Wang, Chuanyu;Kim, Albert;Zhang, Zhuoyu;Cheng, Weiqiang;Dai, Siyuan;Chen, Pengyu;Ding, Feng
• 通讯作者: Ding, Feng

Calligraphy of Nanoplasmonic Bioink-Based Multiplex Immunosensor for Precision Immune Monitoring and Modulation

• DOI: 10.1021/acsami.3c11417
• 发表时间: 2023-10-19
• 期刊: ACS APPLIED MATERIALS & INTERFACES
• 影响因子: 9.5
• 作者: He，Jiacheng;Wu，Siqi;Chen，Pengyu
• 通讯作者: Chen，Pengyu