MRI: Acquisition of a Time-Resolved Spectrometer Spanning Ultraviolet to Terahertz Spectral Range for Materials Research

非技术描述：宽带时间分辨激光光谱仪支持材料科学、光子学、光电子学和治疗应用功能生物材料的广泛研究和教育活动。它提供了一个跨光谱范围（紫外、可见光、红外和太赫兹）的光-物质相互作用窗口，从而实现了多个跨学科的研究。这些研究活动推动了创新技术，这些技术依赖于利用和设计材料中的光学过程：从激光和发光二极管到太阳能，光传感和通信，再到新的生物相容性材料。光谱仪位于WPI教育与应用原型实验室，该实验室是美国制造集成光子学研究所的一部分，并与昆西格蒙德社区学院合作运作。它通过开放的设施和服务中心模式以及培训多样化的劳动力，支持马萨诸塞州中部的光子学和相关技术部门。该仪器通过加强研究基础设施和实现新的和以前未满足的研究方向，增强了伍斯特理工学院及其合作机构的研究生、本科生和社区学院学生的教育。技术描述：宽频、时间分辨光谱仪便于在单一系统中，对各种材料在紫外到太赫兹的光谱范围内，在亚皮秒到微秒的时间尺度上与光相互作用时发生的现象进行研究。通过整合三种互补的超快光谱技术（时间分辨太赫兹光谱、时间分辨光致发光光谱和瞬态吸收光谱），每一种技术都提供互补的信息，它可以更全面地了解新兴光子、光伏、光电化学、柔性光电和生物启发材料的光激发。这项工作有利于WPI科学家和区域合作伙伴在这些领域的研究工作，并由于汇集了多学科专业知识而促进了独特的合作。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

Non-Technical Description:A broadband time-resolved laser spectrometer supports a wide range of research and educational activities in materials science, photonics, optoelectronics and functional biomaterials for therapeutic applications. It enables multiple cross-disciplinary research by providing a window into light-matter interactions across the spectral range that spans the ultraviolet, visible, infrared, and terahertz. These research activities drive innovative technologies that rely on harnessing and engineering optical processes in materials: from lasers and light emitting diodes, to solar energy, optical sensing and communications, to new biocompatible materials. The spectrometer is located at WPI Laboratory for Education & Application Prototypes, which is a part of the American Institute for Manufacturing Integrated Photonics and operates in collaboration with Quinsigamond Community College. It supports photonics and related technology sectors in central Massachusetts through an open-access-facility and service-center model and by training a diverse workforce. The instrument enhances education of graduate, undergraduate and community college students at Worcester Polytechnic Institute and partner institutions by strengthening the research infrastructure and enabling new and previously unmet research directions.Technical Description:The broadband, time-resolved spectrometer facilitates, in a single system, investigations of phenomena that occur in a variety of materials upon their interaction with light in the spectral range spanning the ultraviolet to terahertz, over sub-picoseconds to microseconds time scales. By integrating three complementary ultrafast spectroscopic techniques (time-resolved terahertz spectroscopy, time-resolved photoluminescence spectroscopy and transient absorption spectroscopy), each providing complementary information, it allows constructing a more complete understanding of photoexcitations in emerging photonic, photovoltaic, photoelectrochemical, flexible optoelectronic and biologically-inspired materials. This work benefits research efforts by WPI scientists and regional partners in these fields and fosters unique collaborations as a result of bringing this multidisciplinary expertise together.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.