Collaborative Research: Investigation of Rotation-Time and Inversion-Time Symmetries in Photonic Materials

合作研究：光子材料中旋转时间和反转时间对称性的研究

• 批准号: 1811370
• 负责人: Liang Feng
• 金额: $ 10.08万
• 依托单位: University of Pennsylvania
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-09-01 至 2018-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1811370&HistoricalAwards=false
• 关键词: Collaborative; Research; Investigation; Rotation; Time

Non-Technical Description: The objective of this collaborative research project is to strategically utilize optical losses to demonstrate novel photonic materials with unconventional optical properties. The study may lay a solid foundation for a new generation of sophisticated photonic devices with unique and highly tunable optical properties, as well as provide a better understanding of their connection to quantum mechanics, mathematical physics, and materials science. From the practical point-of-view, the demonstrated novel optical functionalities in the state-of-the-art photonics technology can significantly impact the fast-growing areas of optical communications and computing, including lasers, amplifiers, modulators and detectors. The research is well integrated with the educational activities at both institutions, such as cutting-edge science and technology research experiences for undergraduate and graduate students, and educational outreach activities to promote the interests and participations of K-12 students and underrepresented groups.Technical Description: The primary focus of this research project is to investigate a quantum-mechanism inspired approach to realize novel non-Hermitian photonic materials by employing a variety of symmetry paradigms, including rotation-time, inversion-time, and parity-time symmetries as well as their combinations. Specifically, this collaborative research project is to explore rotation-time and inversion-time symmetries in higher dimensional photonic materials, which completes the anti-linear symmetry families that involve time reversal and a point group (e.g., rotation and inversion). The project utilizes the principal investigators' complementary expertise in optics theory and advanced nanofabrication to design and fabricate novel chip-scale integrated photonic materials of different symmetries. The corresponding optical properties in reflection, transmission and scattering are investigated to characterize different quantum phases and the associated phase transition. A unified group theory is studied to describe the entire non-Hermitian symmetry families. The novel photonic materials in this study are expected to offer unique optical functionalities in the control of light transport and optical resonant modes, thus enabling a new generation of photonic devices.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.

非技术描述：该协作研究项目的目的是利用光学损失来证明具有非常规光学特性的新型光子材料。这项研究可能为具有独特且高度可调的光学特性的新一代复杂的光子设备奠定了坚实的基础，并可以更好地理解它们与量子力学，数学物理学和材料科学的联系。从实际的观察点来看，最先进的光子技术中所展示的新型光学功能可以显着影响光学通信和计算的快速增长领域，包括激光器，放大器，调节器和检测器。这项研究与两个机构的教育活动充分融合，例如针对本科生和研究生的尖端科学和技术研究经验，以及促进K-12学生的兴趣和参与的教育外展活动，以及代表性不足的小组的兴趣和参与。技术描述。旋转时间，反转时间和平等时间对称性及其组合。具体而言，该协作研究项目是探索较高尺寸光子材料中的旋转时间和反转时间对称性，该材料完成了涉及时间逆转和点组（例如旋转和倒置）的反线性对称性家族。该项目利用主要研究者在光学理论和先进的纳米化制作方面的互补专业知识来设计和制造不同对称性的新型芯片尺度集成光子材料。研究了反射，传输和散射中相应的光学特性，以表征不同的量子相和相关的相变。研究了一个统一的群体理论来描述整个非热对称家庭。预计本研究中的新型光子材料将在控制光传输和光学谐振模式的控制中提供独特的光学功能，从而实现了新一代的光子设备。该奖项反映了NSF的法定任务，并被认为是值得通过基金会的知识分子优点和更广泛影响的审查标准来通过评估来支持的。