Coincidence imaging of Coulomb explosion of CS2 in intense laser fields

Hasegawa, H.; Hishikawa, Akiyoshi; Yamanouchi, Kaoru

doi:10.1016/s0009-2614(01)01087-9

Cited by 123 publications

(90 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Such extraction of molecular geometrical structures using coincidence techniques was demonstrated previously for doubly charged 19 and triply charged 17 triatomic molecules.…”

Section: +mentioning

confidence: 68%

“…More detailed descriptions of the coincidence measurement can be found in Ref. 17. The time-of-flight mass spectrum of allene recorded at the present laser field intensity exhibits peaks corresponding to the ion species of H 3 + , CH 3 + , and C 2 H 3 + , which can only be generated after at least one hydrogen atom ͑or a proton͒ migrates from one end to the other end or to the central carbon atom area within an allene molecule.…”

Section: +mentioning

confidence: 92%

“…17,18 Previously, we identified two types of the two-body fragmentation pathways of doubly charged allene by the CMI method, i.e., the C-C bond breaking pathways, C 3 H 4 2+ → CH m + +C 2 H 4−m + ͑m =1-3͒, and the C-H bond breaking pathways, C 3 H 4…”

Section: Tracing Ultrafast Hydrogen Migration In Allene In Intense Lamentioning

confidence: 99%

See 2 more Smart Citations

Tracing ultrafast hydrogen migration in allene in intense laser fields by triple-ion coincidence momentum imaging

Okino

Yamanouchi

2009

The Journal of Chemical Physics

Self Cite

View full text Add to dashboard Cite

Ultrafast hydrogen migration in allene (CH2=C=CH2) in intense laser fields was investigated by triple-ion coincidence momentum imaging. The migrating proton covering the entire range of an allene molecule was visualized by the momentum correlation maps and by the geometrical structure of triply charged allene reconstructed from the observed momentum vectors of fragment ions. The extent of hydrogen migration was found to play a decisive role in breaking selectively one of the two initially equivalent C–C chemical bonds that become inequivalent in the course of the hydrogen migration.

show abstract

“…Such extraction of molecular geometrical structures using coincidence techniques was demonstrated previously for doubly charged 19 and triply charged 17 triatomic molecules.…”

Section: +mentioning

confidence: 68%

Section: +mentioning

confidence: 92%

See 1 more Smart Citation

Tracing ultrafast hydrogen migration in allene in intense laser fields by triple-ion coincidence momentum imaging

Okino

Yamanouchi

2009

The Journal of Chemical Physics

Self Cite

View full text Add to dashboard Cite

show abstract

“…From the flight times of the fragment ions and the positions on the detector plane where the fragment ions hit, the momentum vectors of the fragment ions were determined. Events of the two-body Coulomb explosion pathways were extracted by the CMI method 24 . The released kinetic energy E kin was plotted as a function of the time delay Δt in the delay time range of −20 to 500 fs with delay increment step of 4 fs.…”

Section: Methodsmentioning

confidence: 99%

Coherent vibrations in methanol cation probed by periodic H3+ ejection after double ionization

et al. 2018

Self Cite

View full text Add to dashboard Cite

When hydrocarbon molecules are exposed to an intense laser field, triatomic hydrogen molecular ion, H 3 + , is ejected. Here we describe pump-probe measurements of the ejection of H 3 + from methanol dication with high temporal resolution using intense few-cycle laser pulses and find a long-lasting periodic increase in the yield of H 3 + . We show that H 3 + ejection is the lowest energy decomposition channel and that its yield is enhanced each time when the vibrational wave packet coming back to the inner turning point of methanol cation is projected onto the dication potential energy surface. We also show that the time-resolved measurement of the yield of H 3 + is an efficient tool not only for probing ultrafast nuclear dynamics of hydrocarbon cations but also for deriving vibrational frequencies of hydrocarbon cations with high precision.

show abstract

“…Expecially in laser physics, however, where only three groups world-wide have made use of Reaction Microscopes until now, a whole bunch of investigations might become feasiable: Among them are differential (see e.g. Hasegawa et al (2001);Yamanouchi (2002)) as well as kinematically complete measurements on molecules (a first one has been reported recently by Rottke et al (2002), see also Staudte et al (2002), Alnaser et al (2003)), on state-prepared molecular ions or experiments allowing to extract fully differential cross sections as routinely done for photon, electron or ion impact.…”

Section: A View Into the Futurementioning

confidence: 99%

Recoil-ion and electron momentum spectroscopy: reaction-microscopes

et al. 2003

View full text Add to dashboard Cite

Recoil-ion and electron momentum spectroscopy is a rapidly developing technique that allows one to measure the vector momenta of several ions and electrons resulting from atomic or molecular fragmentation. In a unique combination, large solid angles close to π Microccopes -the "bubble chambers of atomic physics" -mark the decisive step forward to investigate many-particle quantum-dynamics occurring when atomic and molecular systems or even surfaces and solids are exposed to time-dependent external electromagnetic fields.The present review concentrates on just these latest technical developments and on at least four new classes of fragmentation experiments that have emerged within about the last five years. First, multi-dimensional images in momentum space brought unprecedented information on the dynamics of single-photon induced fragmentation of fixed-in-space molecules and on their structure. Second, a break-through in the investigation of highintensity short-pulse laser induced fragmentation of atoms and molecules has been achieved by using Reaction Microccopes. Third, for electron and ion-impact, the investigation of twoelectron reactions has matured to a state such that first fully differential cross sections (FDCS) are reported. Forth, comprehensive sets of FDCS for single ionisation of atoms by ion-impact, the most basic atomic fragmentation reaction, brought new insight, a couple of surprises and unexpected challenges to theory at keV to GeV collision energies. In addition, a brief summary on the kinematics is provided at the beginning. Finally, the rich future potential of the method is shortly envisaged.2

show abstract

Coincidence imaging of Coulomb explosion of CS2 in intense laser fields

Cited by 123 publications

References 20 publications

Tracing ultrafast hydrogen migration in allene in intense laser fields by triple-ion coincidence momentum imaging

Tracing ultrafast hydrogen migration in allene in intense laser fields by triple-ion coincidence momentum imaging

Coherent vibrations in methanol cation probed by periodic H3+ ejection after double ionization

Recoil-ion and electron momentum spectroscopy: reaction-microscopes

Contact Info

Product

Resources

About