1
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Larsen KA, Borne K, Obaid R, Kamalov A, Liu Y, Cheng X, James J, Driver T, Li K, Liu Y, Sakdinawat A, David C, Wolf TJA, Cryan JP, Walter P, Lin MF. Compact single-shot soft X-ray photon spectrometer for free-electron laser diagnostics. OPTICS EXPRESS 2023; 31:35822-35834. [PMID: 38017746 DOI: 10.1364/oe.502105] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Accepted: 09/20/2023] [Indexed: 11/30/2023]
Abstract
The photon spectrum from free-electron laser (FEL) light sources offers valuable information in time-resolved experiments and machine optimization in the spectral and temporal domains. We have developed a compact single-shot photon spectrometer to diagnose soft X-ray spectra. The spectrometer consists of an array of off-axis Fresnel zone plates (FZP) that act as transmission-imaging gratings, a Ce:YAG scintillator, and a microscope objective to image the scintillation target onto a two-dimensional imaging detector. This spectrometer operates in segmented energy ranges which covers tens of electronvolts for each absorption edge associated with several atomic constituents: carbon, nitrogen, oxygen, and neon. The spectrometer's performance is demonstrated at a repetition rate of 120 Hz, but our detection scheme can be easily extended to 200 kHz spectral collection by employing a fast complementary metal oxide semiconductor (CMOS) line-scan camera to detect the light from the scintillator. This compact photon spectrometer provides an opportunity for monitoring the spectrum downstream of an endstation in a limited space environment with sub-electronvolt energy resolution.
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2
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Balbi A, Skeidsvoll AS, Koch H. Coupled Cluster Simulation of Impulsive Stimulated X-ray Raman Scattering. J Phys Chem A 2023; 127:8676-8684. [PMID: 37812082 PMCID: PMC10591507 DOI: 10.1021/acs.jpca.3c03678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 08/22/2023] [Indexed: 10/10/2023]
Abstract
Time-dependent equation-of-motion coupled cluster (TD-EOM-CC) is used to simulate impulsive stimulated X-ray Raman scattering (ISXRS) of ultrashort laser pulses by neon, carbon monoxide, pyrrole, and p-aminophenol. The TD-EOM-CC equations are expressed in the basis of field-free EOM-CC states, where the calculation of the core-excited states is simplified through the use of the core-valence separation (CVS) approximation. The transfer of electronic population from the ground state to the core- and valence-excited states is calculated for different numbers of included core- and valence-excited states, as well as for electric field pulses with different polarizations and carrier frequencies. The results indicate that Gaussian pulses can transfer significant electronic populations to the valence states through the Raman process. The sensitivity of this population transfer to the model parameters is analyzed. The time-dependent electronic density for p-aminophenol is also showcased, supporting the interpretation that ISXRS involves localized core excitations and can be used to rapidly generate valence wavepackets.
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Affiliation(s)
- Alice Balbi
- Scuola
Normale Superiore, Piazza dei Cavalieri, 7, I-56126 Pisa, Italy
| | - Andreas S. Skeidsvoll
- Department
of Chemistry, Norwegian University of Science
and Technology, 7491 Trondheim, Norway
| | - Henrik Koch
- Scuola
Normale Superiore, Piazza dei Cavalieri, 7, I-56126 Pisa, Italy
- Department
of Chemistry, Norwegian University of Science
and Technology, 7491 Trondheim, Norway
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3
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Jiang X, Nam Y, Rouxel JR, Yong H, Mukamel S. Time-resolved enantiomer-exchange probed by using the orbital angular momentum of X-ray light. Chem Sci 2023; 14:11067-11075. [PMID: 37860657 PMCID: PMC10583748 DOI: 10.1039/d3sc02807k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 08/31/2023] [Indexed: 10/21/2023] Open
Abstract
Molecular chirality, a geometric property of utmost importance in biochemistry, is now being investigated in the time-domain. Ultrafast chiral techniques can probe the formation or disappearance of stereogenic centers in molecules. The element-sensitivity of X-rays adds the capability to probe chiral nuclear dynamics locally within the molecular system. However, the implementation of ultrafast techniques for measuring transient chirality remains a challenge because of the intrinsic weakness of chiral-sensitive signals based on circularly polarized light. We propose a novel approach for probing the enantiomeric dynamics by using the orbital angular momentum (OAM) of X-ray light, which can directly monitor the real-time chirality of molecules. Our simulations probe the oscillations in excited chiral formamide on different potential energy surfaces and demonstrate that using the X-ray OAM can increase the measured asymmetry ratio. Moreover, combining the OAM and SAM (spin angular momentum) provides stronger dichroic signals than linearly polarized light, and offers a powerful scheme for chiral discrimination.
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Affiliation(s)
- Xiang Jiang
- Department of Chemistry, Department of Physics & Astronomy, University of California Irvine California 92697 USA
| | - Yeonsig Nam
- Department of Chemistry, Department of Physics & Astronomy, University of California Irvine California 92697 USA
| | - Jérémy R Rouxel
- Chemical Sciences and Engineering Division, Argonne National Laboratory Lemont Illinois 60439 USA
| | - Haiwang Yong
- Department of Chemistry and Biochemistry, University of California San Diego La Jolla California 92093 USA
| | - Shaul Mukamel
- Department of Chemistry, Department of Physics & Astronomy, University of California Irvine California 92697 USA
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4
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Abstract
Major advances in X-ray sources including the development of circularly polarized and orbital angular momentum pulses make it possible to probe matter chirality at unprecedented energy regimes and with Ångström and femtosecond spatiotemporal resolutions. We survey the theory of stationary and time-resolved nonlinear chiral measurements that can be carried out in the X-ray regime using tabletop X-ray sources or large scale (XFEL, synchrotron) facilities. A variety of possible signals and their information content are discussed.
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Affiliation(s)
- Jérémy R Rouxel
- Université de Lyon, UJM-Saint-Etienne, CNRS, IOGS, Laboratoire Hubert Curien UMR 5516, Saint-Etienne F-42023, France
| | - Shaul Mukamel
- Department of Chemistry and Physics & Astronomy, University of California, Irvine, California 92697-2025, United States
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5
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Fouda AEA, Koulentianos D, Young L, Doumy G, Ho PJ. Resonant double-core excitations with ultrafast, intense X-ray pulses. Mol Phys 2022. [DOI: 10.1080/00268976.2022.2133749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Adam E. A. Fouda
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, USA
| | - Dimitris Koulentianos
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, USA
| | - Linda Young
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, USA
- Department of Physics and James Franck Institute, The University of Chicago, Chicago, IL, USA
| | - Gilles Doumy
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, USA
| | - Phay J. Ho
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, USA
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6
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Restaino L, Jadoun D, Kowalewski M. Probing nonadiabatic dynamics with attosecond pulse trains and soft x-ray Raman spectroscopy. STRUCTURAL DYNAMICS (MELVILLE, N.Y.) 2022; 9:034101. [PMID: 35774244 PMCID: PMC9239728 DOI: 10.1063/4.0000146] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 06/06/2022] [Indexed: 05/31/2023]
Abstract
Linear off-resonant x-ray Raman techniques are capable of detecting the ultrafast electronic coherences generated when a photoexcited wave packet passes through a conical intersection. A hybrid femtosecond or attosecond probe pulse is employed to excite the system and stimulate the emission of the signal photon, where both fields are components of a hybrid pulse scheme. In this paper, we investigate how attosecond pulse trains, as provided by high-harmonic generation processes, perform as probe pulses in the framework of this spectroscopic technique, instead of single Gaussian pulses. We explore different combination schemes for the probe pulse as well as the impact of parameters of the pulse trains on the signals. Furthermore, we show how Raman selection rules and symmetry consideration affect the spectroscopic signal, and we discuss the importance of vibrational contributions to the overall signal. We use two different model systems, representing molecules of different symmetries, and quantum dynamics simulations to study the difference in the spectra. The results suggest that such pulse trains are well suited to capture the key features associated with the electronic coherence.
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7
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Fouda AEA, Ho PJ. Site-specific generation of excited state wavepackets with high-intensity attosecond x rays. J Chem Phys 2021; 154:224111. [PMID: 34241215 DOI: 10.1063/5.0050891] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
High-intensity attosecond x rays can produce coherent superpositions of valence-excited states through two-photon Raman transitions. The broad-bandwidth, high-field nature of the pulses results in a multitude of accessible excited states. Multiconfigurational quantum chemistry with the time-dependent Schrödinger equation is used to examine population transfer dynamics in stimulated x-ray Raman scattering of the nitric oxide oxygen and nitrogen K-edges. Two pulse schemes initiate wavepackets of different characters and demonstrate how chemical differences between core-excitation pathways affect the dynamics. The population transfer to valence-excited states is found to be sensitive to the electronic structure and pulse conditions, highlighting complexities attributed to the Rabi frequency. The orthogonally polarized two-color-pulse setup has increased selectivity while facilitating longer, less intense pulses than the one-pulse setup. Population transfer in the 1s → Rydberg region is more effective but less selective at the nitrogen K-edge; the selectivity is reduced by double core-excited states. Result interpretation is aided by resonant inelastic x-ray scattering maps.
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Affiliation(s)
- Adam E A Fouda
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S Cass Avenue, Lemont, Illinois 60439, USA
| | - Phay J Ho
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S Cass Avenue, Lemont, Illinois 60439, USA
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8
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Gu B, Cavaletto SM, Nascimento DR, Khalil M, Govind N, Mukamel S. Manipulating valence and core electronic excitations of a transition-metal complex using UV/Vis and X-ray cavities. Chem Sci 2021; 12:8088-8095. [PMID: 34194698 PMCID: PMC8208133 DOI: 10.1039/d1sc01774h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 05/02/2021] [Indexed: 11/21/2022] Open
Abstract
We demonstrate how optical cavities can be exploited to control both valence- and core-excitations in a prototypical model transition metal complex, ferricyanide ([Fe(iii)(CN)6]3-), in an aqueous environment. The spectroscopic signatures of hybrid light-matter polariton states are revealed in UV/Vis and X-ray absorption, and stimulated X-ray Raman signals. In an UV/Vis cavity, the absorption spectrum exhibits the single-polariton states arising from the cavity photon mode coupling to both resonant and off-resonant valence-excited states. We further show that nonlinear stimulated X-ray Raman signals can selectively probe the bipolariton states via cavity-modified Fe core-excited states. This unveils the correlation between valence polaritons and dressed core-excitations. In an X-ray cavity, core-polaritons are generated and their correlations with the bare valence-excitations appear in the linear and nonlinear X-ray spectra.
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Affiliation(s)
- Bing Gu
- Department of Chemistry and Department of Physics & Astronomy, University of California Irvine CA 92697 USA
| | - Stefano M Cavaletto
- Department of Chemistry and Department of Physics & Astronomy, University of California Irvine CA 92697 USA
| | - Daniel R Nascimento
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory Richland WA 99352 USA
| | - Munira Khalil
- Department of Chemistry, University of Washington Seattle WA USA
| | - Niranjan Govind
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory Richland WA 99352 USA
| | - Shaul Mukamel
- Department of Chemistry and Department of Physics & Astronomy, University of California Irvine CA 92697 USA
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9
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Cavaletto SM, Mukamel S. Probing Delocalized Current Densities in Selenophene by Resonant X-ray Sum-Frequency Generation. J Chem Theory Comput 2021; 17:367-375. [PMID: 33275843 DOI: 10.1021/acs.jctc.0c00886] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Time-resolved, resonant X-ray sum-frequency generation in aligned selenophene molecules is calculated. A wave packet of valence-excited states, prepared by an extreme-ultraviolet pump pulse, is probed by two 12-keV X-ray probe pulses resonant with the Se core-excited states for variable time delays. At these hard-X-ray frequencies, the angström wavelength of the X-ray probe is comparable to the molecular size. We thus employ a nonlocal description of the light-matter interaction based on the minimal-coupling Hamiltonian. The wavevector-resolved resonant stimulated sum-frequency-generation signal, obtained by varying the propagation direction of hard-X-ray pulses, can thus directly monitor the transition current densities between core and ground/valence states. This is in contrast to off-resonant diffraction, which detects the transition charge densities.
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Affiliation(s)
- Stefano M Cavaletto
- Department of Chemistry and Department of Physics & Astronomy, University of California, Irvine, California 92697, United States
| | - Shaul Mukamel
- Department of Chemistry and Department of Physics & Astronomy, University of California, Irvine, California 92697, United States
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10
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Eichmann U, Rottke H, Meise S, Rubensson JE, Söderström J, Agåker M, Såthe C, Meyer M, Baumann TM, Boll R, De Fanis A, Grychtol P, Ilchen M, Mazza T, Montano J, Music V, Ovcharenko Y, Rivas DE, Serkez S, Wagner R, Eisebitt S. Photon-recoil imaging: Expanding the view of nonlinear x-ray physics. Science 2020; 369:1630-1633. [PMID: 32973029 DOI: 10.1126/science.abc2622] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 07/02/2020] [Indexed: 11/02/2022]
Abstract
Addressing the ultrafast coherent evolution of electronic wave functions has long been a goal of nonlinear x-ray physics. A first step toward this goal is the investigation of stimulated x-ray Raman scattering (SXRS) using intense pulses from an x-ray free-electron laser. Earlier SXRS experiments relied on signal amplification during pulse propagation through dense resonant media. By contrast, our method reveals the fundamental process in which photons from the primary radiation source directly interact with a single atom. We introduce an experimental protocol in which scattered neutral atoms rather than scattered photons are detected. We present SXRS measurements at the neon K edge and a quantitative theoretical analysis. The method should become a powerful tool in the exploration of nonlinear x-ray physics.
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Affiliation(s)
- U Eichmann
- Max Born Institute, 12489 Berlin, Germany.
| | - H Rottke
- Max Born Institute, 12489 Berlin, Germany
| | - S Meise
- Max Born Institute, 12489 Berlin, Germany
| | - J-E Rubensson
- Department of Physics and Astronomy, Uppsala University, SE-751 20 Uppsala, Sweden
| | - J Söderström
- Department of Physics and Astronomy, Uppsala University, SE-751 20 Uppsala, Sweden
| | - M Agåker
- Department of Physics and Astronomy, Uppsala University, SE-751 20 Uppsala, Sweden.,MAX IV Laboratory, Lund University, SE-221 00 Lund, Sweden
| | - C Såthe
- MAX IV Laboratory, Lund University, SE-221 00 Lund, Sweden
| | - M Meyer
- European XFEL, 22869 Schenefeld, Germany
| | | | - R Boll
- European XFEL, 22869 Schenefeld, Germany
| | - A De Fanis
- European XFEL, 22869 Schenefeld, Germany
| | - P Grychtol
- European XFEL, 22869 Schenefeld, Germany
| | - M Ilchen
- European XFEL, 22869 Schenefeld, Germany.,Institut für Physik, University of Kassel, 34132 Kassel, Germany
| | - T Mazza
- European XFEL, 22869 Schenefeld, Germany
| | - J Montano
- European XFEL, 22869 Schenefeld, Germany
| | - V Music
- European XFEL, 22869 Schenefeld, Germany.,Institut für Physik, University of Kassel, 34132 Kassel, Germany
| | | | - D E Rivas
- European XFEL, 22869 Schenefeld, Germany
| | - S Serkez
- European XFEL, 22869 Schenefeld, Germany
| | - R Wagner
- European XFEL, 22869 Schenefeld, Germany
| | - S Eisebitt
- Max Born Institute, 12489 Berlin, Germany.,Institut für Optik und Atomare Physik, Technische Universität Berlin, 10623 Berlin, Germany
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11
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O'Neal JT, Champenois EG, Oberli S, Obaid R, Al-Haddad A, Barnard J, Berrah N, Coffee R, Duris J, Galinis G, Garratt D, Glownia JM, Haxton D, Ho P, Li S, Li X, MacArthur J, Marangos JP, Natan A, Shivaram N, Slaughter DS, Walter P, Wandel S, Young L, Bostedt C, Bucksbaum PH, Picón A, Marinelli A, Cryan JP. Electronic Population Transfer via Impulsive Stimulated X-Ray Raman Scattering with Attosecond Soft-X-Ray Pulses. PHYSICAL REVIEW LETTERS 2020; 125:073203. [PMID: 32857563 DOI: 10.1103/physrevlett.125.073203] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 05/21/2020] [Accepted: 07/09/2020] [Indexed: 06/11/2023]
Abstract
Free-electron lasers provide a source of x-ray pulses short enough and intense enough to drive nonlinearities in molecular systems. Impulsive interactions driven by these x-ray pulses provide a way to create and probe valence electron motions with high temporal and spatial resolution. Observing these electronic motions is crucial to understand the role of electronic coherence in chemical processes. A simple nonlinear technique for probing electronic motion, impulsive stimulated x-ray Raman scattering (ISXRS), involves a single impulsive interaction to produce a coherent superposition of electronic states. We demonstrate electronic population transfer via ISXRS using broad bandwidth (5.5 eV full width at half maximum) attosecond x-ray pulses produced by the Linac Coherent Light Source. The impulsive excitation is resonantly enhanced by the oxygen 1s→2π^{*} resonance of nitric oxide (NO), and excited state neutral molecules are probed with a time-delayed UV laser pulse.
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Affiliation(s)
- Jordan T O'Neal
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - Elio G Champenois
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - Solène Oberli
- Departamento de Química, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Razib Obaid
- Department of Physics, University of Connecticut, Storrs, Connecticut 06269, USA
| | - Andre Al-Haddad
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
- Paul-Scherrer Institute, CH-5232 Villigen PSI, Switzerland
| | - Jonathan Barnard
- Blackett Laboratory, Imperial College, London SW7 2AZ, United Kingdom
| | - Nora Berrah
- Department of Physics, University of Connecticut, Storrs, Connecticut 06269, USA
| | - Ryan Coffee
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - Joseph Duris
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - Gediminas Galinis
- Blackett Laboratory, Imperial College, London SW7 2AZ, United Kingdom
| | - Douglas Garratt
- Blackett Laboratory, Imperial College, London SW7 2AZ, United Kingdom
| | - James M Glownia
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | | | - Phay Ho
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - Siqi Li
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
- Department of Physics, Stanford University, Stanford, California 94305, USA
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - Xiang Li
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
- J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506, USA
| | - James MacArthur
- Department of Physics, Stanford University, Stanford, California 94305, USA
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - Jon P Marangos
- Blackett Laboratory, Imperial College, London SW7 2AZ, United Kingdom
| | - Adi Natan
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - Niranjan Shivaram
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Daniel S Slaughter
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Peter Walter
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - Scott Wandel
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - Linda Young
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
- Department of Physics and James Franck Institute, The University of Chicago, Chicago, Illinois 60637, USA
| | - Christoph Bostedt
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
- Paul-Scherrer Institute, CH-5232 Villigen PSI, Switzerland
- LUXS Laboratory for Ultrafast X-ray Sciences, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Philip H Bucksbaum
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
- Department of Physics, Stanford University, Stanford, California 94305, USA
- Department of Applied Physics, Stanford University, Stanford, California 94305, USA
| | - Antonio Picón
- Departamento de Química, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Agostino Marinelli
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - James P Cryan
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
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12
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Kraka E, Zou W, Tao Y. Decoding chemical information from vibrational spectroscopy data: Local vibrational mode theory. WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL MOLECULAR SCIENCE 2020. [DOI: 10.1002/wcms.1480] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Elfi Kraka
- Department of Chemistry Southern Methodist University Dallas Texas USA
| | - Wenli Zou
- Institute of Modern Physics Northwest University and Shaanxi Key Laboratory for Theoretical Physics Frontiers, Xi'an Shaanxi PR China
| | - Yunwen Tao
- Department of Chemistry Southern Methodist University Dallas Texas USA
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