The optical absorption spectrum and photofragmentation processes of silver tetramer ion

Akira Terasaki, S. Minemoto, M. Iseda, T. Kondow

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

An optical absorption spectrum of a silver tetramer ion, Ag+ 4, was obtained in the photon-energy range of 2.0-5.2 eV by measuring its photofragmentation action spectrum. Three major absorption peaks were observed at photon energies of about 3.1, 4.0, and 4.3 eV. Each transition has a narrow line width of less than 0.1 eV, indicating a molecular nature of the present cluster ion at low temperature. Fragmentation channels were strongly dependent on excited states; Ag+ 3 was the dominant product ion at 3.1 and 4.0 eV excitation, whereas only Ag+ 2 was produced at 4.3 eV excitation. The fragmentation was found to proceed in a nonstatistical manner. These processes were further characterized by translational kinetic energies of the photofragments evaluated by the measurements of velocity distributions of neutral fragments. It was shown that photofragments are emitted with relatively low translational energies and that, consequently, they are highly excited in internal modes.

Original languageEnglish
Pages (from-to)163-168
Number of pages6
JournalEuropean Physical Journal D
Volume9
Issue number1-4
DOIs
Publication statusPublished - Jan 1 1999
Externally publishedYes

Fingerprint

optical spectrum
optical absorption
silver
absorption spectra
fragmentation
excitation
ions
photons
energy
velocity distribution
kinetic energy
fragments
products

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this

The optical absorption spectrum and photofragmentation processes of silver tetramer ion. / Terasaki, Akira; Minemoto, S.; Iseda, M.; Kondow, T.

In: European Physical Journal D, Vol. 9, No. 1-4, 01.01.1999, p. 163-168.

Research output: Contribution to journalArticle

Terasaki, Akira ; Minemoto, S. ; Iseda, M. ; Kondow, T. / The optical absorption spectrum and photofragmentation processes of silver tetramer ion. In: European Physical Journal D. 1999 ; Vol. 9, No. 1-4. pp. 163-168.
@article{f3a196b5e2794c9384b56ec662fb75a7,
title = "The optical absorption spectrum and photofragmentation processes of silver tetramer ion",
abstract = "An optical absorption spectrum of a silver tetramer ion, Ag+ 4, was obtained in the photon-energy range of 2.0-5.2 eV by measuring its photofragmentation action spectrum. Three major absorption peaks were observed at photon energies of about 3.1, 4.0, and 4.3 eV. Each transition has a narrow line width of less than 0.1 eV, indicating a molecular nature of the present cluster ion at low temperature. Fragmentation channels were strongly dependent on excited states; Ag+ 3 was the dominant product ion at 3.1 and 4.0 eV excitation, whereas only Ag+ 2 was produced at 4.3 eV excitation. The fragmentation was found to proceed in a nonstatistical manner. These processes were further characterized by translational kinetic energies of the photofragments evaluated by the measurements of velocity distributions of neutral fragments. It was shown that photofragments are emitted with relatively low translational energies and that, consequently, they are highly excited in internal modes.",
author = "Akira Terasaki and S. Minemoto and M. Iseda and T. Kondow",
year = "1999",
month = "1",
day = "1",
doi = "10.1007/s100530050419",
language = "English",
volume = "9",
pages = "163--168",
journal = "European Physical Journal D",
issn = "1434-6060",
publisher = "Springer New York",
number = "1-4",

}

TY - JOUR

T1 - The optical absorption spectrum and photofragmentation processes of silver tetramer ion

AU - Terasaki, Akira

AU - Minemoto, S.

AU - Iseda, M.

AU - Kondow, T.

PY - 1999/1/1

Y1 - 1999/1/1

N2 - An optical absorption spectrum of a silver tetramer ion, Ag+ 4, was obtained in the photon-energy range of 2.0-5.2 eV by measuring its photofragmentation action spectrum. Three major absorption peaks were observed at photon energies of about 3.1, 4.0, and 4.3 eV. Each transition has a narrow line width of less than 0.1 eV, indicating a molecular nature of the present cluster ion at low temperature. Fragmentation channels were strongly dependent on excited states; Ag+ 3 was the dominant product ion at 3.1 and 4.0 eV excitation, whereas only Ag+ 2 was produced at 4.3 eV excitation. The fragmentation was found to proceed in a nonstatistical manner. These processes were further characterized by translational kinetic energies of the photofragments evaluated by the measurements of velocity distributions of neutral fragments. It was shown that photofragments are emitted with relatively low translational energies and that, consequently, they are highly excited in internal modes.

AB - An optical absorption spectrum of a silver tetramer ion, Ag+ 4, was obtained in the photon-energy range of 2.0-5.2 eV by measuring its photofragmentation action spectrum. Three major absorption peaks were observed at photon energies of about 3.1, 4.0, and 4.3 eV. Each transition has a narrow line width of less than 0.1 eV, indicating a molecular nature of the present cluster ion at low temperature. Fragmentation channels were strongly dependent on excited states; Ag+ 3 was the dominant product ion at 3.1 and 4.0 eV excitation, whereas only Ag+ 2 was produced at 4.3 eV excitation. The fragmentation was found to proceed in a nonstatistical manner. These processes were further characterized by translational kinetic energies of the photofragments evaluated by the measurements of velocity distributions of neutral fragments. It was shown that photofragments are emitted with relatively low translational energies and that, consequently, they are highly excited in internal modes.

UR - http://www.scopus.com/inward/record.url?scp=0033472820&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0033472820&partnerID=8YFLogxK

U2 - 10.1007/s100530050419

DO - 10.1007/s100530050419

M3 - Article

AN - SCOPUS:0033472820

VL - 9

SP - 163

EP - 168

JO - European Physical Journal D

JF - European Physical Journal D

SN - 1434-6060

IS - 1-4

ER -