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Coulomb Explosion in Nanosecond Laser Fields.

ABSTRACT: We report experimental observations of Coulomb explosion using a nanosecond laser at 532 nm with intensities less than 1012 W/cm2. We observe multiply charged atomic ions Arn+ (1 ≤ n ≤ 7) and Cn+ (1 ≤ n ≤ 4) from argon clusters doped with molecules containing aromatic chromophores. The yield of Arn+ depends on the size of the cluster, the number density, and the photostability of the dopant. We propose that resonant absorption of ArN+ achieves a high degree of ionization, and the highly positively charged cluster has the capability to strip electrons from the evaporating Ar+ on the surface of the cluster prior to Coulomb explosion, forming Arn+.

SUBMITTER: Zhang J

PROVIDER: S-EPMC7182134 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature

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Coulomb Explosion in Nanosecond Laser Fields.

Zhang Jie J Yao Yuzhong Y Kong Wei W

The journal of physical chemistry letters 20200127 3

We report experimental observations of Coulomb explosion using a nanosecond laser at 532 nm with intensities less than 1012 W/cm2. We observe multiply charged atomic ions Arn+ (1 ≤ n ≤ 7) and Cn+ (1 ≤ n ≤ 4) from argon clusters doped with molecules containing aromatic chromophores. The yield of Arn+ depends on the size of the cluster, the number density, and the photostability of the dopant. We propose that ...[more]

PMID: 31976673

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