Search Results - "Shiromaru, H."
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1
Efficient polyyne formation by ns and fs laser-induced breakdown in ethylene and acetylene gas flow
Published in Carbon (New York) (01-11-2019)“…We studied polyyne formation by gas phase laser-induced breakdown in ethylene and acetylene gas flow using ns and fs lasers. The results show that acetylene is…”
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Journal Article -
2
Polyyne formation by ns and fs laser induced breakdown in hydrocarbon gas flow
Published in Carbon (New York) (01-05-2017)“…Flowing gases of hydrocarbon molecules were irradiated by tightly focused ns and fs laser, and the products were captured in hexane solution. In the case of ns…”
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Journal Article -
3
N@C60 formation by laser-induced breakdown in nitrogen gas flow
Published in Carbon trends (01-10-2022)“…Nitrogen-atom-endohedral C60 (N@C60) was generated by laser induced breakdown in gaseous N2 occurring near the surface of a C60 film. The yield was estimated…”
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4
Interatomic Coulombic decay as a new source of low energy electrons in slow ion-dimer collisions
Published in Physical review letters (23-01-2015)“…We provide the experimental evidence that the single electron capture process in slow collisions between O^{3+} ions and neon dimer targets leads to an…”
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5
Polyyne formation by graphite laser ablation in argon and propane mixed gases
Published in Carbon (New York) (01-11-2015)“…Laser ablation of graphite in argon/propane mixed gases was performed to elucidate the process of carbon cluster growth and hydrogen termination to form…”
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Journal Article -
6
Role of a Neighbor Ion in the Fragmentation Dynamics of Covalent Molecules
Published in Physical review letters (09-06-2017)“…Fragmentation of molecular nitrogen dimers (N_{2})_{2} induced by collision with low energy 90 keV Ar^{9+} ions is studied to evidence the influence of a…”
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7
Asymmetry in multiple-electron capture revealed by radiative charge transfer in Ar dimers
Published in Physical review letters (23-12-2010)“…We measured kinetic energies of the fragment ions of argon dimers multiply ionized by low-energy Ar(9+) collisions. For (Ar2)(4+) dissociation, the asymmetric…”
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Journal Article -
8
Anticorrelated formation of fullerenes and polyynes upon laser ablation of graphite under various concentrations of hydrogen sources
Published in Chemical physics letters (01-12-2015)“…[Display omitted] •We found a macroscopic amount of soluble fullerenes were produced by laser ablation of graphite in a `room-temperature' argon gas flow.•The…”
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Journal Article -
9
Synthesis of polyyne molecules from hexane by irradiation of intense femtosecond laser pulses
Published in Carbon (New York) (01-04-2010)“…Hydrogen-capped polyynes have been synthesized by femtosecond laser irradiation of hexane liquid. We used UV absorption to identify and high performance liquid…”
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Journal Article -
10
Measurements and 3D Monte Carlo simulation of MeV ion transmission through conical glass capillaries
Published in Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms (01-07-2014)“…To investigate possible beam guiding and current density enhancement properties for conical glass capillaries for MeV ions, transmission measurements with well…”
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11
Cooling dynamics of photo-excited negative carbon cluster ions stored in an ion storage ring
Published in Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms (01-07-2015)“…A newly found fast radiative cooling process of C6- is studied by simulation based on statistical sharing of the internal energy by the vibrational modes both…”
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Journal Article -
12
Atomic site-sensitive processes in low energy ion-dimer collisions
Published in Physical review letters (03-10-2014)“…Electron capture processes for low energy Ar(9+) ions colliding with Ar(2) dimer targets are investigated, focusing attention on charge sharing between the two…”
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13
Cooling dynamics of photoexcited C6(-) and C6H(-)
Published in Physical review letters (09-05-2014)“…We report conclusive evidence of an efficient cooling mechanism via the electronic radiative transitions of hot small molecular anions isolated in vacuum. We…”
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14
Absolute cooling rates of freely decaying fullerenes
Published in Physical review letters (02-10-2009)“…The cooling rates of C60- have been measured in an electrostatic storage ring between several hundred mus and several tens of ms with one-photon laser…”
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15
Comparing Coulomb explosion dynamics of multiply charged triatomic molecules after ionization by highly charged ion impact and few cycle femtosecond laser pulses
Published in Physica scripta (01-09-2013)“…Recent experiments using highly charged ions (HCI) at Tokyo Metropolitan University and few cycle laser pulses at the advanced laser light source have centered…”
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Journal Article -
16
TMU electrostatic ion storage ring designed for operation at liquid nitrogen temperature
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-10-2004)“…A new electrostatic ion storage ring has been constructed by collaboration of atomic physics and cluster chemistry groups in Tokyo Metropolitan University. We…”
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Journal Article -
17
Storage and mass-selective control of ions in an electrostatic ion storage ring
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-03-2007)“…An electrostatic ion storage ring designed for atomic and molecular physics has been constructed at Tokyo Metropolitan University. A variety of molecular ions…”
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Journal Article -
18
Multiple-ionization and dissociation dynamics of a rare gas dimer induced by highly charged ion impact
Published in Physica scripta (01-06-2011)Get full text
Journal Article -
19
Microhydration of the methylene blue cation in an electrospray ion source
Published in The European physical journal. D, Atomic, molecular and optical physics (Print) (01-07-2011)“…Microhydrated methylene blue cations, MB + (H 2 O) n , are produced in an electrospray ion source and their size-distributions are measured as a function of…”
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Journal Article Conference Proceeding -
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Electron detachment of super-excited porphyrin anions in an electrostatic ion storage ring
Published in The European physical journal. D, Atomic, molecular and optical physics (Print) (01-07-2007)Get full text
Conference Proceeding Journal Article