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

MRI：获取跨越紫外到太赫兹光谱范围的时间分辨光谱仪，用于材料研究

• 批准号: 2018326
• 负责人: Lyubov Titova
• 金额: $ 56.83万
• 依托单位: Worcester Polytechnic Institute
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-09-01 至 2024-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2018326&HistoricalAwards=false
• 关键词: MRI; Acquisition; Time; Resolved; Spectrometer

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.

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、光电子学和功能性生物材料治疗应用领域的广泛研究和教育活动。它通过提供跨越紫外线，可见光，红外线和太赫兹光谱范围的光-物质相互作用的窗口，实现了多个跨学科的研究。这些研究活动推动了依赖于利用和设计材料中的光学过程的创新技术：从激光器和发光二极管到太阳能，光学传感和通信，再到新的生物相容性材料。该光谱仪位于WPI教育应用原型实验室，该实验室是美国制造集成光子学研究所的一部分，并与Quinsigamond社区学院合作运营。它通过开放式设施和服务中心模式以及培训多样化的劳动力来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，提高了伍斯特理工学院和合作机构的研究生，本科生和社区学院学生的教育。技术说明：宽带，时间分辨光谱仪方便，在一个单一的系统，在各种材料中发生的现象，其相互作用的光谱范围从紫外到太赫兹，在亚皮秒到微秒的时间尺度。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），每种技术都提供互补的信息，它允许构建对新兴光子，光伏，光电化学，柔性光电和生物启发材料中的光激发的更完整的理解。这项工作有利于WPI科学家和地区合作伙伴在这些领域的研究工作，并通过将这些多学科专业知识结合在一起，促进了独特的合作。该奖项反映了NSF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。

项目成果

Ultrafast dynamics of photoexcitations in 2D Ti3C2Tz, Mo2Ti2C3Tz, and Nb2CTz MXenes

• DOI: 10.1117/12.2649428
• 发表时间: 2023-03
• 作者: Erika Colin-Ulloa;Kiana Montazeri;Varun Natu;Andrew M. Fitzgerald;Ken Ngo;J. Uzarski;M. Barsoum;L. Titova

Electronic Structure of 1D Lepidocrocite TiO 2 as Revealed by Optical Absorption and Photoelectron Spectroscopy

光学吸收和光电子能谱揭示一维纤铁矿TiO 2 的电子结构

• DOI: 10.1021/acs.jpcc.2c06719
• 发表时间: 2023
• 期刊: The Journal of Physical Chemistry C
• 作者: Colin-Ulloa, Erika;Martin, Julia L.;Hanna, Ryan J.;Frasch, Michelle H.;Ramthun, Rebecca R.;Badr, Hussein O.;Uzarski, Joshua R.;Barsoum, Michel W.;Grimm, Ronald L.;Titova, Lyubov V.
• 通讯作者: Titova, Lyubov V.

Improved synthesis and transient absorption spectroscopy of CuBiW 2 O 8 with demonstration of visible-light-driven photocatalysis and mechanistic insights

改进 CuBiW 2 O 8 的合成和瞬态吸收光谱，并展示可见光驱动的光催化和机理见解

• DOI: 10.1039/d2ta03086a
• 发表时间: 2022
• 期刊: Journal of Materials Chemistry A
• 影响因子: 11.9
• 作者: Yilmaz Akkaya, Ceren;Dombrowski, James P.;Colin-Ulloa, Erika;Titova, Lyubov V.;Lawton, Timothy J.;Alexander, Todd E.;Brack, Eric;Drew, Christopher;Rao, Pratap M.
• 通讯作者: Rao, Pratap M.

Dynamics of Photoexcitations in Ti 3 C 2 T z , Mo 2 Ti 2 C 3 T z , and Nb 2 CT z 2D MXenes

Ti 3 C 2 T z 、Mo 2 Ti 2 C 3 T z 和 Nb 2 CT z 2D MXene 中的光激发动力学

• DOI: 10.1109/irmmw-thz50927.2022.9895648
• 发表时间: 2022
• 期刊: Millimeter and Terahertz Waves
• 作者: Colin-Ulloa, Erika;Fitzgerald, Andrew M.;Mann, Javery;Montazeri, Kiana;Barsoum, Michel W.;Ngo, Ken A.;Uzarski, Joshua R.;Titova, Lyubov V.
• 通讯作者: Titova, Lyubov V.

Ultrafast dynamics of plasmons and free carriers in 2D MXenes

• DOI: 10.1364/cleo_fs.2023.ff1g.2
• 发表时间: 2023-05
• 期刊: 2023 Conference on Lasers and Electro-Optics (CLEO)
• 作者: L. Titova;Erika Colin-Ulloa;Andrew M. Fitzgerald;Kiana Montazeri;Javery A. Mann;Varun Natu;Ken Ngo;J. Uzarski;M. Barsoum