Widely Tunable Cavity-Enhanced Ultrafast Spectroscopy and the Dynamics of Hydrogen Bond Networks
宽可调腔增强超快光谱和氢键网络动力学
基本信息
- 批准号:1708743
- 负责人:
- 金额:$ 50.19万
- 依托单位:
- 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:2017-08-01 至 2022-01-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
With support from the Chemical Measurement and Imaging Program in the Division of Chemistry, Professor Allison and his research group at Stony Brook University further develop a new type of spectrometer for recording the behavior of gas molecules. In particular, Professor Allison records snapshots of the vibrations of hydrogen bonds between water molecules when a few water molecules stick together in a ring but are otherwise isolated from the environment. These snapshots of simple systems help to understand how the motions of hydrogen atoms in more complex networks such as liquid water are coupled to one another. The information allows scientists to make better computer models of hydrogen-bonded matter. The new ultrafast spectrometers developed by the Allison Lab will be able to record signals from much more dilute samples than currently possible. Professor Allison's techniques, once developed, can be used to study motions of other molecular systems and find many uses in fundamental and applied research. For example, the developed technique could allow scientists to study how water molecules interact with each other to understand how clouds form or to study how protein molecules interact with their surrounding molecules to understand enzymatic functions in biological processes.Professor Allison works with graduate and undergraduate students closely in the research. He also participates in a school summer program on campus targeting high school students. Ultrafast optical spectroscopy methods, such as transient absorption spectroscopy and two-dimensional spectroscopy, are widely used across many disciplines. However, these techniques have been typically restricted to optically thick samples, such as solids and liquid solutions. Professor Allison and his group work on a widely tunable cavity-enhanced ultrafast spectrometer and apply it to the dynamics of elementary hydrogen bond networks. This involves substantial instrument development in concert with a series of experiments on jet-cooled gas-phase molecules and clusters. Cavity-enhanced two-dimensional infrared (CE-2DIR) spectroscopy is another technique to be developed to study hydrogen-bonded carboxylic acid dimers. The study of small deuterated water clusters will provide critical data for understanding and modeling the complexities of liquid water. The development of a widely tunable cavity-enhanced ultrafast spectrometer is expected to open new opportunities for many future applications where classic ultrafast spectroscopy has been limited by its sensitivity and spectral information. The project provides students involved in the project with an interdisciplinary research opportunity. Professor Allison also participates in the University's laser teaching center for the outreach to high school students and general publics.
在化学系化学测量和成像计划的支持下,埃里森教授和他在石溪大学的研究小组进一步开发了一种用于记录气体分子行为的新型光谱仪。特别是,艾利森教授记录了当几个水分子粘在一起形成一个环,但以其他方式与环境隔离时,水分子之间氢键振动的快照。这些简单系统的快照有助于理解在液态水等更复杂的网络中氢原子的运动是如何相互耦合的。这些信息使科学家能够对氢键物质建立更好的计算机模型。艾利森实验室开发的新超快光谱仪将能够记录比目前可能的更多稀薄样品的信号。艾利森教授的技术一旦被开发出来,就可以用来研究其他分子系统的运动,并在基础和应用研究中找到许多用途。例如,开发的技术可以让科学家研究水分子如何相互作用,以了解云是如何形成的,或者研究蛋白质分子如何与周围的分子相互作用,以了解生物过程中的酶功能。艾利森教授在这项研究中与研究生和本科生密切合作。他还参加了校园里一个针对高中生的学校暑期计划。超快光谱学方法,如瞬时吸收光谱学和二维光谱学,被广泛应用于许多学科。然而,这些技术通常仅限于光学厚度的样品,如固体和液体溶液。艾利森教授和他的团队致力于研制一种可广泛调谐的腔增强型超快光谱仪,并将其应用于基本氢键网络的动力学研究。这涉及到大量的仪器开发,同时对喷射冷却的气相分子和团簇进行了一系列实验。腔增强二维红外光谱(CE-2DIR)是研究氢键羧酸二聚体的另一种技术。对小的氚水团簇的研究将为理解和模拟液态水的复杂性提供关键数据。可广泛调谐的腔增强型超快光谱仪的发展有望为许多未来的应用提供新的机会,在这些应用中,经典的超快光谱已经受到其灵敏度和光谱信息的限制。该项目为参与该项目的学生提供了一个跨学科的研究机会。艾利森教授还参与了该大学的激光教学中心,为高中生和普通公众提供服务。
项目成果
期刊论文数量(8)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Broadband ultraviolet-visible frequency combs from cascaded high-harmonic generation in quasi-phase-matched waveguides
准相位匹配波导中级联高次谐波产生的宽带紫外-可见光频率梳
- DOI:10.1364/josab.427086
- 发表时间:2021
- 期刊:
- 影响因子:0
- 作者:Rutledge, Jay;Catanese, Anthony;Hickstein, Daniel D.;Diddams, Scott A.;Allison, Thomas K.;Kowligy, Abijith S.
- 通讯作者:Kowligy, Abijith S.
Mid-Infrared Frequency Comb Generation and Spectroscopy with Few-Cycle Pulses and χ(2) Nonlinear Optics
- DOI:10.1103/physrevlett.124.133904
- 发表时间:2020-04-01
- 期刊:
- 影响因子:8.6
- 作者:Lind, Alexander J.;Kowligy, Abijith;Diddams, Scott A.
- 通讯作者:Diddams, Scott A.
Widely tunable cavity-enhanced frequency combs
宽范围可调腔增强频率梳
- DOI:10.1364/ol.389412
- 发表时间:2020
- 期刊:
- 影响因子:3.6
- 作者:Silfies, Myles C.;Kowzan, Grzegorz;Chen, Yuning;Lewis, Neomi;Hou, Ryan;Baehre, Robin;Gross, Tobias;Allison, Thomas K.
- 通讯作者:Allison, Thomas K.
Mid-infrared frequency comb with 6.7 W average power based on difference frequency generation
- DOI:10.1364/ol.385294
- 发表时间:2020-03-01
- 期刊:
- 影响因子:3.6
- 作者:Catanese, Anthony;Rutledge, Jay;Allison, Thomas K.
- 通讯作者:Allison, Thomas K.
Broadband UV-Vis Frequency Combs from High-harmonic Generation in Quasi-phase-matched Waveguides
准相位匹配波导中高次谐波产生的宽带紫外-可见光频率梳
- DOI:10.1364/cleo_si.2021.sf2o.4
- 发表时间:2021
- 期刊:
- 影响因子:0
- 作者:Rutledge, Jay;Catanese, Anthony;Hickstein, Daniel D.;Allison, Thomas K.;Diddams, Scott A.;Kowligy, Abijith S.
- 通讯作者:Kowligy, Abijith S.
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Thomas Allison其他文献
906-61 Acoustic Quantification in the Infarcted Ventricle: Comparison with Electron Beam Computed Tomography
- DOI:
10.1016/0735-1097(95)91686-r - 发表时间:
1995-02-01 - 期刊:
- 影响因子:
- 作者:
Jean Buithieu;Thomas Behrenbeck;Thomas Allison;Thomas Gerber;Judd E. Reed;David A. Foley;John A. Rumberger;A. Jamil Tajik;James B. Seward - 通讯作者:
James B. Seward
RESTORATION SINUS RHYTHM IN PATIENTS WITH ATRIAL FIBRILLATION IMPROVES PROGNOSTIC INDICATORS DURING CARDIOPULMONARY EXERCISE TESTING
- DOI:
10.1016/s0735-1097(14)60364-8 - 发表时间:
2014-04-01 - 期刊:
- 影响因子:
- 作者:
Stephanie Joppa;Thomas Allison;Peter Brady - 通讯作者:
Peter Brady
UTILITY OF CARDIOPULMONARY EXERCISE TESTING IN PATIENTS WITH ASYMPTOMATIC SEVERE AORTIC STENOSIS
- DOI:
10.1016/s0735-1097(19)32563-x - 发表时间:
2019-03-12 - 期刊:
- 影响因子:
- 作者:
Sonia Fortin;Vuyisile Nkomo;Maria I. Barillas Lara;Yazan Assaf;Amanda Bonikowske;Michel Corban;Karina Gonzalez Carta;Thomas Allison;Debora Brala - 通讯作者:
Debora Brala
DIGITAL HEALTH INTERVENTION USAGE IMPROVES WEIGHT LOSS IN A DOSE-DEPENDENT FASHION
- DOI:
10.1016/s0735-1097(17)35055-6 - 发表时间:
2017-03-21 - 期刊:
- 影响因子:
- 作者:
Robert Jay Widmer;Thomas Allison;Francisco Lopez-Jimenez;Lilach Lerman;Amir Lerman - 通讯作者:
Amir Lerman
NON-SUSTAINED VENTRICULAR TACHYCARDIA IN EXERCISE TESTING: NOT SO BENIGN
- DOI:
10.1016/s0735-1097(18)30822-2 - 发表时间:
2018-03-10 - 期刊:
- 影响因子:
- 作者:
Deepak Padmanabhan;Nasir Hussain;Thomas Allison;Bernard Gersh;Mayo Clinic - 通讯作者:
Mayo Clinic
Thomas Allison的其他文献
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{{ truncateString('Thomas Allison', 18)}}的其他基金
MRI: Development of Ultra-Broadband High-Power Frequency Comb Light Source for Advanced Spectroscopy and Imaging
MRI:开发用于先进光谱和成像的超宽带高功率频率梳光源
- 批准号:
2216021 - 财政年份:2022
- 资助金额:
$ 50.19万 - 项目类别:
Standard Grant
Collaborative Research: Understanding Ultrafast Observables
合作研究:理解超快可观测值
- 批准号:
2102319 - 财政年份:2021
- 资助金额:
$ 50.19万 - 项目类别:
Standard Grant
Cavity Enhanced Ultrafast Transient Absorption Spectroscopy
腔增强超快瞬态吸收光谱
- 批准号:
1404296 - 财政年份:2014
- 资助金额:
$ 50.19万 - 项目类别:
Standard Grant
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具有可调节内部体积的宽敞深腔空腔/疏水客组件
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