1
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Crane SW, Lee JWL, Ashfold MNR, Rolles D. Molecular photodissociation dynamics revealed by Coulomb explosion imaging. Phys Chem Chem Phys 2023. [PMID: 37335247 DOI: 10.1039/d3cp01740k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2023]
Abstract
Coulomb explosion imaging (CEI) methods are finding ever-growing use as a means of exploring and distinguishing the static stereo-configurations of small quantum systems (molecules, clusters, etc). CEI experiments initiated by ultrafast (femtosecond-duration) laser pulses also allow opportunities to track the time-evolution of molecular structures, and thereby advance understanding of molecular fragmentation processes. This Perspective illustrates two emerging families of dynamical studies. 'One-colour' studies (employing strong field ionisation driven by intense near infrared or single X-ray or extreme ultraviolet laser pulses) afford routes to preparing multiply charged molecular cations and exploring how their fragmentation progresses from valence-dominated to Coulomb-dominated dynamics with increasing charge and how this evolution varies with molecular size and composition. 'Two-colour' studies use one ultrashort laser pulse to create electronically excited neutral molecules (or monocations), whose structural evolution is then probed as a function of pump-probe delay using an ultrafast ionisation pulse along with time and position-sensitive detection methods. This latter type of experiment has the potential to return new insights into not just molecular fragmentation processes but also charge transfer processes between moieties separating with much better defined stereochemical control than in contemporary ion-atom and ion-molecule charge transfer studies.
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Affiliation(s)
- Stuart W Crane
- School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK.
| | - Jason W L Lee
- Department of Chemistry, University of Oxford, Oxford, OX1 3TA, UK
| | | | - Daniel Rolles
- J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, KS 66506, USA
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2
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Endo T, Ziems KM, Richter M, Fröbel FG, Hishikawa A, Gräfe S, Légaré F, Ibrahim H. Post-Ionization Dynamics of the Polar Molecule OCS in Asymmetric Laser Fields. Front Chem 2022; 10:859750. [PMID: 35464205 PMCID: PMC9023801 DOI: 10.3389/fchem.2022.859750] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 03/07/2022] [Indexed: 11/20/2022] Open
Abstract
We have investigated the dissociation mechanisms of the prototypical heavy polar molecule OCS into the two break-up channels of the dication, OCS2+ → O+ + CS+ and OC+ + S+, in phase-locked two-color intense laser fields. The branching ratio of the breaking of the C–O and C–S bonds followed a pronounced 2π-oscillation with a modulation depth of 11%, depending on the relative phase of the two-color laser fields. The fragment ejection direction of both break-up channels reflects the anisotropy of the tunneling ionization rate, following a 2π-periodicity, as well. The two dissociation pathways in the C–S bond breaking channel show different phase dependencies of the fragment ejection direction, which are assigned to post-ionization dynamics. These observations, resulting from the excitation with asymmetric two-color intense laser fields, supported by state-of-the-art theoretical simulations, reveal the importance of post-ionization population dynamics in addition to tunneling ionization in the molecular fragmentation processes, even for heavy polar molecules.
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Affiliation(s)
- Tomoyuki Endo
- Institut national de la recherche scientifique, Centre Énergie Matériaux et Télécommunications, Varennes, QC, Canada
- Kansai Photon Science Institute, National Institutes for Quantum Science and Technology, Kizugawa, Japan
| | - Karl Michael Ziems
- Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Jena, Germany
- Max Planck School of Photonics, Jena, Germany
| | - Martin Richter
- Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Jena, Germany
| | - Friedrich G. Fröbel
- Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Jena, Germany
| | - Akiyoshi Hishikawa
- Department of Chemistry, Graduate School of Science, Nagoya University, Nagoya, Japan
- Research Center for Materials Science, Nagoya University, Nagoya, Japan
| | - Stefanie Gräfe
- Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Jena, Germany
- Max Planck School of Photonics, Jena, Germany
| | - François Légaré
- Institut national de la recherche scientifique, Centre Énergie Matériaux et Télécommunications, Varennes, QC, Canada
- *Correspondence: François Légaré, ; Heide Ibrahim,
| | - Heide Ibrahim
- Institut national de la recherche scientifique, Centre Énergie Matériaux et Télécommunications, Varennes, QC, Canada
- *Correspondence: François Légaré, ; Heide Ibrahim,
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3
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Hishikawa A, Matsuda A, Fushitani M. Ultrafast Reaction Imaging and Control by Ultrashort Intense Laser Pulses. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2020. [DOI: 10.1246/bcsj.20200158] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Akiyoshi Hishikawa
- Research Center for Materials Science, Nagoya University, Nagoya, Aichi 464-8602, Japan
- Department of Chemistry, Graduate School of Science, Nagoya University, Nagoya, Aichi 464-8602, Japan
| | - Akitaka Matsuda
- Department of Chemistry, Graduate School of Science, Nagoya University, Nagoya, Aichi 464-8602, Japan
| | - Mizuho Fushitani
- Department of Chemistry, Graduate School of Science, Nagoya University, Nagoya, Aichi 464-8602, Japan
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4
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Kangaparambil S, Hanus V, Dorner-Kirchner M, He P, Larimian S, Paulus G, Baltuška A, Xie X, Yamanouchi K, He F, Lötstedt E, Kitzler-Zeiler M. Generalized Phase Sensitivity of Directional Bond Breaking in the Laser-Molecule Interaction. PHYSICAL REVIEW LETTERS 2020; 125:023202. [PMID: 32701337 DOI: 10.1103/physrevlett.125.023202] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Accepted: 06/18/2020] [Indexed: 06/11/2023]
Abstract
We establish a generalized picture of the phase sensitivity of laser-induced directional bond breaking using the H_{2} molecule as the example. We show that the well-known proton ejection anisotropy measured with few-cycle pulses as a function of their carrier-envelope phases arises as an amplitude modulation of an intrinsic anisotropy that is sensitive to the laser phase at the ionization time and determined by the molecule's electronic structure. Our work furthermore reveals a strong electron-proton correlation that may open up a new approach to experimentally accessing the laser-sub-cycle intramolecular electron dynamics also in larger molecules.
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Affiliation(s)
| | - Václav Hanus
- Photonics Institute, Technische Universität Wien, 1040 Vienna, Austria
| | | | - Peilun He
- Key Laboratory for Laser Plasmas and School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | | | - Gerhard Paulus
- Institute of Optics and Quantum Electronics, Friedrich Schiller University Jena, 07743 Jena, Germany
| | - Andrius Baltuška
- Photonics Institute, Technische Universität Wien, 1040 Vienna, Austria
| | - Xinhua Xie
- Photonics Institute, Technische Universität Wien, 1040 Vienna, Austria
| | - Kaoru Yamanouchi
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Feng He
- Key Laboratory for Laser Plasmas and School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Erik Lötstedt
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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5
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Zhang Q, Fukahori S, Ando T, Kanya R, Iwasaki A, Rathje T, Paulus GG, Yamanouchi K. Absolute carrier-envelope-phase dependences of single and double ionization of methanol in a near-IR few-cycle laser field. J Chem Phys 2020; 152:194304. [PMID: 33687232 DOI: 10.1063/5.0006485] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We investigate the carrier-envelope phase (CEP) dependences of the single and double ionization processes of methanol (CH3OH) in an intense near-IR few-cycle laser field (2.1 × 1014 W/cm2) by the asymmetry in the ejection direction of CH3 + for the non-hydrogen migration channels and CH2 + for the hydrogen migration channels created through the C-O bond breaking after the ionization. Based on the absolute CEP values at the laser-molecule interaction point, calibrated by the method using intense few-cycle circularly polarized laser pulses [Fukahori et al., Phys. Rev. A 95, 053410-1-053410-14 (2017)], we confirm that methanol cations are produced by tunnel ionization and methanol dications are produced by the recollisional double ionization. We obtain the phase offset for the double ionization accompanying no hydrogen migration to be 1.85π as the absolute CEP at which the extent of the asymmetry becomes maximum. We interpret the phase shift of 0.85π from the phase offset of 1.0π for the tunnel ionization, estimated by a tunnel ionization model incorporating the chemical bond asymmetry, as the corresponding time delay associated with the electron recollisional ionization. The positive phase shift of 0.13π for the single ionization in the non-hydrogen migration channel is interpreted as the additional time (165 as) with which a methanol cation can be excited electronically prior to the decomposition. The additional phase shift of 0.22π for the single ionization in the hydrogen migration channel is interpreted as the additional time (280 as) required for a methanol cation to be excited electronically leading to the hydrogen migration prior to the decomposition.
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Affiliation(s)
- Qiqi Zhang
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Shinichi Fukahori
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Toshiaki Ando
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Reika Kanya
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Atsushi Iwasaki
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Tim Rathje
- Institut für Optik und Quantenelektronik, Friedrich-Schiller-Universität, Max-Wien-Platz 1, 07743 Jena, Germany
| | - Gerhard G Paulus
- Institut für Optik und Quantenelektronik, Friedrich-Schiller-Universität, Max-Wien-Platz 1, 07743 Jena, Germany
| | - Kaoru Yamanouchi
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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6
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van den Wildenberg S, Mignolet B, Levine RD, Remacle F. Temporal and spatially resolved imaging of the correlated nuclear-electronic dynamics and of the ionized photoelectron in a coherently electronically highly excited vibrating LiH molecule. J Chem Phys 2019; 151:134310. [DOI: 10.1063/1.5116250] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Stephan van den Wildenberg
- Theoretical Physical Chemistry, Research Unit Molecular Systems, University of Liège, B4000 Liège, Belgium
| | - Benoit Mignolet
- Theoretical Physical Chemistry, Research Unit Molecular Systems, University of Liège, B4000 Liège, Belgium
| | - R. D. Levine
- The Fritz Haber Research Center for Molecular Dynamics and Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
- Department of Chemistry and Biochemistry, David Geffen School of Medicine, University of California, Los Angeles, California 90095, USA
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California, Los Angeles, California 90095, USA
| | - F. Remacle
- Theoretical Physical Chemistry, Research Unit Molecular Systems, University of Liège, B4000 Liège, Belgium
- The Fritz Haber Research Center for Molecular Dynamics and Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
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7
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Debrah DA, Stewart GA, Basnayake G, Tisch JWG, Lee SK, Li W. Direct in-situ single-shot measurements of the absolute carrier-envelope phases of ultrashort pulses. OPTICS LETTERS 2019; 44:3582-3585. [PMID: 31305577 DOI: 10.1364/ol.44.003582] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 06/20/2019] [Indexed: 06/10/2023]
Abstract
Many important physical processes such as nonlinear optics and coherent control are highly sensitive to the absolute carrier-envelope phase (CEP) of driving ultrashort laser pulses. This makes the measurement of CEP immensely important in relevant fields. Even though relative CEPs can be measured with a few existing technologies, the estimate of the absolute CEP is not straightforward and always requires theoretical inputs. Here, we demonstrate a novel in-situ technique based on angular streaking that can achieve such a goal without complicated calibration procedures. Single-shot measurements of the absolute CEP have been achieved with an estimated precision of 0.19 radians.
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8
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Kechaoglou E, Kaziannis S, Kosmidis C. Controlling intramolecular hydrogen migration by asymmetric laser fields: the water case. Phys Chem Chem Phys 2019; 21:11259-11265. [PMID: 31099358 DOI: 10.1039/c9cp01470e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydrogen and deuterium intramolecular migration in water's isotopomer dications has been found to depend on the wavelength of the laser used for the excitation. This is imprinted in H2+ and D2+ fragment ions' observation in the mass spectra induced by single color fs laser irradiation with 800 nm ≤λ≤ 1570 nm. Based on these findings, experiments with ω/2ω asymmetric laser fields (1400/700 nm) have been performed. The dissociation channels of the dications exhibit different dependence on the phase between the ω and 2ω components of the field thus offering an ability for controlling the fragmentation. For the interpretation of these observations, a tunneling mechanism is invoked.
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Affiliation(s)
| | - Spyridon Kaziannis
- Department of Physics, University of Ioannina, Ioannina, Gr-45110, Greece.
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9
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Fukahori S, Yamanouchi K, Paulus GG. Asymmetry flip in photoelectron angular distribution of rare gas atoms in intense circularly-polarized few-cycle laser fields. EPJ WEB OF CONFERENCES 2019. [DOI: 10.1051/epjconf/201920506011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
An analytical formula representing the photoelectron kinetic energy at which the ejection direction of photoelectrons generated by an intense circularly-polarized few-cycle laser pulse flips was derived and was used for determining the laser pulse duration.
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10
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Jochim B, Siemering R, Zohrabi M, Voznyuk O, Mahowald JB, Schmitz DG, Betsch KJ, Berry B, Severt T, Kling NG, Burwitz TG, Carnes KD, Kling MF, Ben-Itzhak I, Wells E, de Vivie-Riedle R. The importance of Rydberg orbitals in dissociative ionization of small hydrocarbon molecules in intense laser fields. Sci Rep 2017; 7:4441. [PMID: 28667335 PMCID: PMC5493692 DOI: 10.1038/s41598-017-04638-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Accepted: 05/18/2017] [Indexed: 11/10/2022] Open
Abstract
Much of our intuition about strong-field processes is built upon studies of diatomic molecules, which typically have electronic states that are relatively well separated in energy. In polyatomic molecules, however, the electronic states are closer together, leading to more complex interactions. A combined experimental and theoretical investigation of strong-field ionization followed by hydrogen elimination in the hydrocarbon series C2D2, C2D4 and C2D6 reveals that the photofragment angular distributions can only be understood when the field-dressed orbitals rather than the field-free orbitals are considered. Our measured angular distributions and intensity dependence show that these field-dressed orbitals can have strong Rydberg character for certain orientations of the molecule relative to the laser polarization and that they may contribute significantly to the hydrogen elimination dissociative ionization yield. These findings suggest that Rydberg contributions to field-dressed orbitals should be routinely considered when studying polyatomic molecules in intense laser fields.
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Affiliation(s)
- Bethany Jochim
- J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, KS 66506, USA
| | - R Siemering
- Department für Chemie, Ludwig-Maximilians-Universität München, Butenandt-Strasse 11, D-81377, München, Germany
| | - M Zohrabi
- J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, KS 66506, USA
| | - O Voznyuk
- Department of Physics, Augustana University, Sioux Falls, SD 57197, USA
| | - J B Mahowald
- Department of Physics, Augustana University, Sioux Falls, SD 57197, USA
| | - D G Schmitz
- Department of Physics, Augustana University, Sioux Falls, SD 57197, USA
| | - K J Betsch
- J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, KS 66506, USA
| | - Ben Berry
- J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, KS 66506, USA
| | - T Severt
- J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, KS 66506, USA
| | - Nora G Kling
- J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, KS 66506, USA.,Department für Physik, Ludwig-Maximilians-Universität München, Am Coulombwall 1, D-85748, Garching, Germany
| | - T G Burwitz
- Department of Physics, Augustana University, Sioux Falls, SD 57197, USA
| | - K D Carnes
- J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, KS 66506, USA
| | - M F Kling
- J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, KS 66506, USA.,Department für Physik, Ludwig-Maximilians-Universität München, Am Coulombwall 1, D-85748, Garching, Germany
| | - I Ben-Itzhak
- J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, KS 66506, USA
| | - E Wells
- Department of Physics, Augustana University, Sioux Falls, SD 57197, USA.
| | - R de Vivie-Riedle
- Department für Chemie, Ludwig-Maximilians-Universität München, Butenandt-Strasse 11, D-81377, München, Germany.
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11
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Li H, Kling NG, Gaumnitz T, Burger C, Siemering R, Schötz J, Liu Q, Ban L, Pertot Y, Wu J, Azzeer AM, de Vivie-Riedle R, Wörner HJ, Kling MF. Sub-cycle steering of the deprotonation of acetylene by intense few-cycle mid-infrared laser fields. OPTICS EXPRESS 2017; 25:14192-14203. [PMID: 28789005 DOI: 10.1364/oe.25.014192] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Accepted: 06/02/2017] [Indexed: 05/21/2023]
Abstract
Directional breaking of the C-H/C-D molecular bond is manipulated in acetylene (C2H2) and deuterated acetylene (C2D2) by waveform controlled few-cycle mid-infrared laser pulses with a central wavelength around 1.6 μm at an intensity of about 8 × 1013 W/cm2. The directionality of the deprotonation of acetylene is controlled by changing the carrier-envelope phase (CEP). The CEP-control can be attributed to the laser-induced superposition of vibrational modes, which is sensitive to the sub-cycle evolution of the laser waveform. Our experiments and simulations indicate that near-resonant, intense mid-infrared pulses permit a higher degree of control of the directionality of the reaction compared to those obtained in near-infrared fields, in particular for the deuterated species.
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12
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Kübel M, Burger C, Siemering R, Kling NG, Bergues B, Alnaser AS, Ben-Itzhak I, Moshammer R, de Vivie-Riedle R, Kling MF. Phase- and intensity-dependence of ultrafast dynamics in hydrocarbon molecules in few-cycle laser fields. Mol Phys 2017. [DOI: 10.1080/00268976.2017.1288935] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- M. Kübel
- Department of Physics, Ludwig-Maximilians-Universität , Garching, Germany
| | - C. Burger
- Department of Physics, Ludwig-Maximilians-Universität , Garching, Germany
- Laboratory of Attosecond Physics, Max Planck Institute of Quantum Optics , Garching, Germany
| | - R. Siemering
- Department of Chemistry and Biochemistry, Ludwig-Maximilians-Universität , Munich, Germany
| | - Nora G. Kling
- Department of Physics, Ludwig-Maximilians-Universität , Garching, Germany
| | - B. Bergues
- Department of Physics, Ludwig-Maximilians-Universität , Garching, Germany
- Laboratory of Attosecond Physics, Max Planck Institute of Quantum Optics , Garching, Germany
| | - A. S. Alnaser
- Department of Chemistry and Biochemistry, Ludwig-Maximilians-Universität , Munich, Germany
| | - I. Ben-Itzhak
- J.R. Macdonald Laboratory, Physics Department, Kansas-State University , Manhattan, KS, USA
| | - R. Moshammer
- Max Planck Institute of Nuclear Physics , Heidelberg, Germany
| | | | - M. F. Kling
- Department of Physics, Ludwig-Maximilians-Universität , Garching, Germany
- Laboratory of Attosecond Physics, Max Planck Institute of Quantum Optics , Garching, Germany
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13
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Endo T, Fujise H, Kawachi Y, Ishihara A, Matsuda A, Fushitani M, Kono H, Hishikawa A. Selective bond breaking of CO2 in phase-locked two-color intense laser fields: laser field intensity dependence. Phys Chem Chem Phys 2017; 19:3550-3556. [DOI: 10.1039/c6cp07471e] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
One of the two equivalent C–O bonds of CO2 can be selectively broken by phase-locked two-color intense laser fields.
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Affiliation(s)
- Tomoyuki Endo
- Research Center for Materials Science
- Nagoya University
- Nagoya
- Japan
- Department of Chemistry
| | - Hikaru Fujise
- Department of Chemistry
- Graduate School of Science
- Nagoya University
- Nagoya
- Japan
| | - Yuuna Kawachi
- Department of Chemistry
- Graduate School of Science
- Nagoya University
- Nagoya
- Japan
| | - Ayaka Ishihara
- Department of Chemistry
- Graduate School of Science
- Nagoya University
- Nagoya
- Japan
| | - Akitaka Matsuda
- Department of Chemistry
- Graduate School of Science
- Nagoya University
- Nagoya
- Japan
| | - Mizuho Fushitani
- Department of Chemistry
- Graduate School of Science
- Nagoya University
- Nagoya
- Japan
| | - Hirohiko Kono
- Department of Chemistry
- Graduate School of Science
- Tohoku University
- Sendai 980-8578
- Japan
| | - Akiyoshi Hishikawa
- Research Center for Materials Science
- Nagoya University
- Nagoya
- Japan
- Department of Chemistry
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14
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Ichikawa Y, Kato T, Yamanouchi K. Non-adiabatic electron-proton couplings in H2 by floating Gaussian method. Chem Phys Lett 2016. [DOI: 10.1016/j.cplett.2016.06.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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15
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Kübel M, Siemering R, Burger C, Kling NG, Li H, Alnaser AS, Bergues B, Zherebtsov S, Azzeer AM, Ben-Itzhak I, Moshammer R, de Vivie-Riedle R, Kling MF. Steering Proton Migration in Hydrocarbons Using Intense Few-Cycle Laser Fields. PHYSICAL REVIEW LETTERS 2016; 116:193001. [PMID: 27232019 DOI: 10.1103/physrevlett.116.193001] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Indexed: 05/13/2023]
Abstract
Proton migration is a ubiquitous process in chemical reactions related to biology, combustion, and catalysis. Thus, the ability to manipulate the movement of nuclei with tailored light within a hydrocarbon molecule holds promise for far-reaching applications. Here, we demonstrate the steering of hydrogen migration in simple hydrocarbons, namely, acetylene and allene, using waveform-controlled, few-cycle laser pulses. The rearrangement dynamics is monitored using coincident 3D momentum imaging spectroscopy and described with a widely applicable quantum-dynamical model. Our observations reveal that the underlying control mechanism is due to the manipulation of the phases in a vibrational wave packet by the intense off-resonant laser field.
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Affiliation(s)
- M Kübel
- Department of Physics, Ludwig-Maximilians-Universität Munich, D-85748 Garching, Germany
| | - R Siemering
- Department of Chemistry and Biochemistry, Ludwig-Maximilians-Universität Munich, D-81377 München, Germany
| | - C Burger
- Department of Physics, Ludwig-Maximilians-Universität Munich, D-85748 Garching, Germany
| | - Nora G Kling
- Department of Physics, Ludwig-Maximilians-Universität Munich, D-85748 Garching, Germany
- J.R. Macdonald Laboratory, Physics Department, Kansas-State University, Manhattan, Kansas 66506, USA
| | - H Li
- Department of Physics, Ludwig-Maximilians-Universität Munich, D-85748 Garching, Germany
- Max Planck Institute of Quantum Optics, D-85748 Garching, Germany
| | - A S Alnaser
- Max Planck Institute of Quantum Optics, D-85748 Garching, Germany
- Physics Department, American University of Sharjah, P.O. Box 26666, Sharjah, United Arab Emirates
| | - B Bergues
- Max Planck Institute of Quantum Optics, D-85748 Garching, Germany
| | - S Zherebtsov
- Department of Physics, Ludwig-Maximilians-Universität Munich, D-85748 Garching, Germany
- Max Planck Institute of Quantum Optics, D-85748 Garching, Germany
| | - A M Azzeer
- Department of Physics & Astronomy, King-Saud University, Riyadh 11451, Saudi Arabia
| | - I Ben-Itzhak
- J.R. Macdonald Laboratory, Physics Department, Kansas-State University, Manhattan, Kansas 66506, USA
| | - R Moshammer
- Max Planck Institute of Nuclear Physics, D-69117 Heidelberg, Germany
| | - R de Vivie-Riedle
- Department of Chemistry and Biochemistry, Ludwig-Maximilians-Universität Munich, D-81377 München, Germany
| | - M F Kling
- Department of Physics, Ludwig-Maximilians-Universität Munich, D-85748 Garching, Germany
- Max Planck Institute of Quantum Optics, D-85748 Garching, Germany
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16
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Xie X, Lötstedt E, Roither S, Schöffler M, Kartashov D, Midorikawa K, Baltuška A, Yamanouchi K, Kitzler M. Duration of an intense laser pulse can determine the breakage of multiple chemical bonds. Sci Rep 2015; 5:12877. [PMID: 26271602 PMCID: PMC4536518 DOI: 10.1038/srep12877] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 07/13/2015] [Indexed: 11/29/2022] Open
Abstract
Control over the breakage of a certain chemical bond in a molecule by an ultrashort laser pulse has been considered for decades. With the availability of intense non-resonant laser fields it became possible to pre-determine femtosecond to picosecond molecular bond breakage dynamics by controlled distortions of the electronic molecular system on sub-femtosecond time scales using field-sensitive processes such as strong-field ionization or excitation. So far, all successful demonstrations in this area considered only fragmentation reactions, where only one bond is broken and the molecule is split into merely two moieties. Here, using ethylene (C2H4) as an example, we experimentally investigate whether complex fragmentation reactions that involve the breakage of more than one chemical bond can be influenced by parameters of an ultrashort intense laser pulse. We show that the dynamics of removing three electrons by strong-field ionization determines the ratio of fragmentation of the molecular trication into two respectively three moieties. We observe a relative increase of two-body fragmentations with the laser pulse duration by almost an order of magnitude. Supported by quantum chemical simulations we explain our experimental results by the interplay between the dynamics of electron removal and nuclear motion.
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Affiliation(s)
- Xinhua Xie
- Photonics Institute, Vienna University of Technology, Gusshausstrasse 27, A-1040 Vienna, Austria, EU
| | - Erik Lötstedt
- Laser Technology Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- RIKEN Center for Advanced Photonics, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Stefan Roither
- Photonics Institute, Vienna University of Technology, Gusshausstrasse 27, A-1040 Vienna, Austria, EU
| | - Markus Schöffler
- Photonics Institute, Vienna University of Technology, Gusshausstrasse 27, A-1040 Vienna, Austria, EU
| | - Daniil Kartashov
- Photonics Institute, Vienna University of Technology, Gusshausstrasse 27, A-1040 Vienna, Austria, EU
| | - Katsumi Midorikawa
- Laser Technology Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- RIKEN Center for Advanced Photonics, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Andrius Baltuška
- Photonics Institute, Vienna University of Technology, Gusshausstrasse 27, A-1040 Vienna, Austria, EU
| | - Kaoru Yamanouchi
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Markus Kitzler
- Photonics Institute, Vienna University of Technology, Gusshausstrasse 27, A-1040 Vienna, Austria, EU
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Ando T, Shimamoto A, Miura S, Nakai K, Xu H, Iwasaki A, Yamanouchi K. Wave packet bifurcation in ultrafast hydrogen migration in CH3OH+ by pump-probe coincidence momentum imaging with few-cycle laser pulses. Chem Phys Lett 2015. [DOI: 10.1016/j.cplett.2015.02.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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18
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Kotsina N, Kaziannis S, Kosmidis C. Hydrogen migration in methanol studied under asymmetric fs laser irradiation. Chem Phys Lett 2014. [DOI: 10.1016/j.cplett.2014.04.040] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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