OP: Super-Coupling Nanoplasmonics with Silicon Photonics for Mid-Infrared Biosensing

OP：超耦合纳米等离子体与硅光子学用于中红外生物传感

• 批准号: 1809240
• 负责人: Sang-Hyun Oh
• 金额: $ 37.5万
• 依托单位: University of Minnesota-Twin Cities
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-07-01 至 2021-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1809240&HistoricalAwards=false
• 关键词: OP; Super; Coupling; Nanoplasmonics; Silicon

Nontechnical: This project aims to develop a miniaturized and integrated optical sensor system to detect biomedical molecules with the potential for point-of-care applications. The sensor measures the molecule's unique optical absorption features of infrared light, with high sensitivity and the capability of identifying them. Moreover, the project will realize a novel structure consisting of metallic optical nanostructures and silicon waveguide, which are efficiently coupled together. The new architecture may also lead to efficient optoelectronic devices for high-speed optical communications that will play an important role in future data centers and 5G wireless network. For education, the project will provide graduate and undergraduate students with experience in nanotechnology and instrumentation. For K-12 outreach, the PIs will build an interactive Activity Station at the Science Museum of Minnesota every year and enhance the public awareness of the benefits of nanotechnology to our society. More women and underrepresented minorities will be given opportunities to experience nanotechnology. Finally, the PIs will continue support for REU and local recruit high school students for summer research experience.Technical: Nanoplasmonics and silicon photonics are two categories of photonic systems with unique features and advantages in the manipulation and detection of light. Integrating the two distinctive systems in a synergistic way can potentially combine their merits and circumvent their weakness, to enable applications ranging from chemical and biological sensing to optoelectronics and optical communications. The realization of such a hybrid integration approach with both efficiency and sensitivity, however, is hindered by the large phase mismatching between the different types of optical modes in the two systems, which leads to low coupling efficiency between them. This program aims to solve the problem and achieve a hybrid platform that efficiently integrates nanoplasmonic resonators and silicon photonic waveguides with an emphasis on operation in the technologically important mid-infrared (mid-IR) band. The phase mismatching challenge is resolved innovatively by utilizing the super-coupling effect brought by the epsilon-near-zero (ENZ) phenomenon in ring-shaped plasmonic coaxial resonators to achieve waveguide-plasmonics coupling efficiency greater than 90%. The hybrid system enables surface-enhanced infrared absorption (SEIRA) sensing, which will be demonstrated with model systems such as lipid bilayer membranes and proteins. There are three-fold intellectual merits of the program. First, the novel physics of super-coupling enabled by the epsilon-near-zero (ENZ) phenomenon is explored and utilized to efficiently couple nanoplasmonic resonators with silicon waveguides. The second intellectual merit lies in the research emphasis in the mid-IR band, which is currently experiencing very fast development and is exceedingly powerful for spectroscopic chemical and biological sensing. The third intellectual merit of the program is to achieve SEIRA biosensing. A new reflection mode detection scheme is investigated that avoids the passage of IR light through the solution and thus largely circumvents water absorption. The anticipated significant improvement in the signal-to-noise ratio would directly lead to enhanced detection sensitivity in SEIRA.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.

非技术性：该项目旨在开发一种小型化集成光学传感器系统，用于检测具有即时护理应用潜力的生物医学分子。该传感器测量分子独特的红外光吸收特性，具有高灵敏度和识别能力。此外，该项目将实现一种由金属光学纳米结构和硅波导组成的新颖结构，它们有效地耦合在一起。新架构还可能带来用于高速光通信的高效光电器件，这将在未来的数据中心和5G无线网络中发挥重要作用。在教育方面，该项目将为研究生和本科生提供纳米技术和仪器方面的经验。对于 K-12 的外展活动，PI 每年都会在明尼苏达州科学博物馆建立一个互动活动站，并提高公众对纳米技术给社会带来的好处的认识。更多女性和代表性不足的少数族裔将有机会体验纳米技术。最后，PI将继续支持REU，并在当地招募高中生进行暑期研究经验。技术：纳米等离子体和硅光子是两类光子系统，在光的操纵和检测方面具有独特的功能和优势。以协同方式集成这两个独特的系统可以结合它们的优点并规避它们的缺点，从而实现从化学和生物传感到光电子和光通信的应用。然而，这种兼具效率和灵敏度的混合集成方法的实现受到两个系统中不同类型光模式之间的大相位失配的阻碍，这导致它们之间的耦合效率低。该计划旨在解决该问题并实现一个混合平台，该平台可有效集成纳米等离子体谐振器和硅光子波导，重点是在技术上重要的中红外（mid-IR）波段运行。利用环形等离子体同轴谐振器中ε近零（ENZ）现象带来的超级耦合效应，创新性地解决了相位失配的难题，实现了大于90%的波导-等离子体耦合效率。该混合系统可实现表面增强红外吸收（SEIRA）传感，这将通过脂质双层膜和蛋白质等模型系统进行演示。该计划具有三重智力优势。首先，探索并利用由ε近零（ENZ）现象实现的新型超耦合物理，以有效地将纳米等离子体谐振器与硅波导耦合。第二个智力优势在于中红外波段的研究重点，该波段目前正在经历非常快速的发展，并且对于光谱化学和生物传感非常强大。该计划的第三个智力优点是实现了SEIRA生物传感。研究了一种新的反射模式检测方案，该方案避免红外光穿过溶液，从而很大程度上避免水吸收。预期信噪比的显着改善将直接导致 SEIRA 检测灵敏度的提高。该奖项反映了 NSF 的法定使命，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。

项目成果

Impact of Surface Roughness in Nanogap Plasmonic Systems

纳米间隙等离子体系统中表面粗糙度的影响

• DOI: 10.1021/acsphotonics.0c00099
• 发表时间: 2020-01-24
• 期刊: ACS Photonics
• 影响因子: 7
• 作者: C. Ciracì;F. Vidal;Daehan Yoo;J. Peraire;Sang‐Hyun Oh;David R. Smith
• 通讯作者: David R. Smith

Coupled-mode theory for plasmonic resonators integrated with silicon waveguides towards mid-infrared spectroscopic sensing

与硅波导集成的等离子体谐振器的耦合模式理论，用于中红外光谱传感

• DOI: 10.1364/oe.28.002020
• 发表时间: 2020-01
• 期刊: Optics Express
• 影响因子: 3.8
• 作者: Chen, Che;Oh, Sang;Li, Mo
• 通讯作者: Li, Mo

Modeling and observation of mid-infrared nonlocality in effective epsilon-near-zero ultranarrow coaxial apertures

有效ε-近零超窄同轴孔径中红外非定域性的建模和观察

• DOI: 10.1038/s41467-019-12038-3
• 发表时间: 2019-10-02
• 期刊: Nature Communications
• 影响因子: 16.6
• 作者: Daehan Yoo;F. Vidal;C. Ciracì;N. Nguyen;David R. Smith;J. Peraire;Sang‐Hyun Oh
• 通讯作者: Sang‐Hyun Oh

Waveguide-Integrated Compact Plasmonic Resonators for On-Chip Mid-Infrared Laser Spectroscopy

用于片上中红外激光光谱的波导集成紧凑型等离激元谐振器

• DOI: 10.1021/acs.nanolett.8b03156
• 发表时间: 2018-11
• 期刊: Nano Letters
• 影响因子: 10.8
• 作者: Chen, Che;Mohr, Daniel A.;Choi, Han;Yoo, Daehan;Li, Mo;Oh, Sang
• 通讯作者: Oh, Sang

Ultrastrong plasmon–phonon coupling via epsilon-near-zero nanocavities

通过ε-近零纳米腔实现超强等离子体-声子耦合

• DOI: 10.1038/s41566-020-00731-5
• 发表时间: 2021-02
• 期刊: Nature Photonics
• 影响因子: 35
• 作者: Yoo, Daehan;de León;Pelton, Matthew;Lee, In;Mohr, Daniel A.;Raschke, Markus B.;Caldwell, Joshua D.;Martín;Oh, Sang
• 通讯作者: Oh, Sang