Molecular Radiative and Relaxation Processes

分子辐射和弛豫过程

• 批准号: 1953045
• 负责人: Shaul Mukamel
• 金额: $ 53.4万
• 依托单位: University of California-Irvine
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-08-01 至 2023-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1953045&HistoricalAwards=false
• 关键词: Molecular; Radiative; Relaxation; Processes

Shaul Mukamel of the University of California, Irvine is supported by an award from the Chemical Theory, Models and Computational Methods program in the Division of Chemistry to study how light and matter interact. Lasers and other light sources are tools with which one can probe, measure, and even control the behavior of molecules. In this project, new ways to interact light with molecules are designed by incorporating the wave properties of light such as phase and polarization. Although the interaction of a single small package (photon) of light with a molecule is quite well understood, multiple photons can be combined into pulses that influence molecules in new ways. These interactions of photons and molecules are best described by quantum mechanics, a the mathematical description of the motion and interaction of subatomic particles, incorporating the concepts of quantization of energy, wave-particle duality, the uncertainty principle, etc. The methods developed in this project will provide new information within this framework. Success in this area could lead to new technologies such as quantum computers. To benchmark the predictions, the project includes extensive collaborations and student exchanges with leading experimental groups all over the world.Professor Mukamel is developing methods to study the response of complex molecules to sequences of ultrafast optical laser pulses that provide a multidimensional view of electronic and vibrational dynamics and correlations. Experimental techniques involving novel pulse sequences are designed. Theoretical and computational tools for their analysis are developed and broadly applied to molecules in the condensed phase. Models and practical computational tools are developed for the interpretation and analysis of these signals. Novel spectroscopic techniques, which make use of the quantum nature of light, photon entanglement and photon coincidence detection are explored. These provide additional tools for probing molecules and chromophore aggregates by providing information that is not accessible by classical light. Detection schemes that combine coincidence measurements of individual entangled photons and interferometry are applied to study the elementary charge and energy migration processes in molecular complexes. Manipulating molecular properties in microcavities (polariton chemistry) and coherent control schemes are employed to optimize and refine nonlinear optical signals.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.

加州大学欧文分校的Shaul Mukamel获得了化学系化学理论、模型和计算方法项目的奖项，以研究光和物质如何相互作用。激光和其他光源是人们可以探测、测量甚至控制分子行为的工具。在这个项目中，通过结合光的波动特性，如相位和偏振，设计了光与分子相互作用的新方法。虽然单个小包光（光子）与分子的相互作用已经很好地理解，但多个光子可以组合成脉冲，以新的方式影响分子。这些光子和分子的相互作用最好由量子力学描述，量子力学是亚原子粒子运动和相互作用的数学描述，结合了能量量子化，波粒二象性，不确定性原理等概念。这一领域的成功可能会带来量子计算机等新技术。Mukamel教授正在开发研究复杂分子对超快光激光脉冲序列的响应的方法，这些超快光激光脉冲序列提供了电子和振动动力学和相关性的多维视图。设计了涉及新颖脉冲序列的实验技术。 理论和计算工具，他们的分析开发和广泛应用于分子在凝聚相。模型和实用的计算工具开发这些信号的解释和分析。新的光谱技术，利用光的量子性质，光子纠缠和光子符合探测进行了探索。这些通过提供经典光无法获得的信息，为探测分子和发色团聚集体提供了额外的工具。采用联合收割机对单个纠缠光子的符合测量和干涉测量相结合的探测方案研究了分子复合物中的元电荷和能量迁移过程。操纵微腔中的分子特性（极化激元化学）和相干控制方案用于优化和改进非线性光学信号。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

Hong-Ou-Mandel interferometry and spectroscopy using entangled photons

• DOI: 10.1038/s42005-021-00542-2
• 发表时间: 2021-03-11
• 期刊: COMMUNICATIONS PHYSICS
• 影响因子: 5.5
• 作者: Dorfman, Konstantin E.;Asban, Shahaf;Mukamel, Shaul
• 通讯作者: Mukamel, Shaul

Vibrational Hyper-Raman Molecular Spectroscopy with Entangled Photons

纠缠光子振动超拉曼分子光谱

• DOI: 10.1021/acsphotonics.1c00777
• 发表时间: 2021
• 期刊: ACS Photonics
• 影响因子: 7
• 作者: Chen, Feng;Mukamel, Shaul
• 通讯作者: Mukamel, Shaul

A Machine-Learning Protocol for Ultraviolet Protein-Backbone Absorption Spectroscopy under Environmental Fluctuations

• DOI: 10.1021/acs.jpcb.1c03296
• 发表时间: 2021-06-04
• 期刊: JOURNAL OF PHYSICAL CHEMISTRY B
• 影响因子: 3.3
• 作者: Zhang，Jinxiao;Ye，Sheng;Jiang，Jun
• 通讯作者: Jiang，Jun

Nonlinear quantum interferometric spectroscopy with entangled photon pairs

• DOI: 10.1063/5.0079049
• 发表时间: 2022-03-07
• 期刊: JOURNAL OF CHEMICAL PHYSICS
• 影响因子: 4.4
• 作者: Asban, Shahaf;Chernyak, Vladimir Y.;Mukamel, Shaul
• 通讯作者: Mukamel, Shaul

Detection of photon statistics and multimode field correlations by Raman processes

通过拉曼过程检测光子统计和多模场相关性

• DOI: 10.1063/5.0039759
• 发表时间: 2021
• 期刊: The Journal of Chemical Physics
• 作者: Schlawin, Frank;Dorfman, Konstantin E.;Mukamel, Shaul
• 通讯作者: Mukamel, Shaul