Optimized energetic particle emissions from Xe clusters in intense laser fields

We have probed the interaction of intense laser fields with Xe clusters by measuring the energy and charge state distributions of emitted ions and electrons using ultrafast 20-fs pulses. This work demonstrates that the energetic particle emissions from laser-cluster interactions can be optimized by...

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Bibliographic Details
Published in:Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2003-06, Vol.67 (6), Article 061201
Main Authors: Fukuda, Yuji, Yamakawa, Koichi, Akahane, Yutaka, Aoyama, Makoto, Inoue, Norihiro, Ueda, Hideki, Kishimoto, Yasuaki
Format: Article
Language:English
Subjects:
ATOMIC AND MOLECULAR PHYSICS
ATOMIC CLUSTERS
CHARGE STATES
ELECTRONS
ION EMISSION
IONS
IRRADIATION
LASER RADIATION
MEV RANGE
PHOTOIONIZATION
PHOTON-MOLECULE COLLISIONS
PULSES
XENON
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Summary:We have probed the interaction of intense laser fields with Xe clusters by measuring the energy and charge state distributions of emitted ions and electrons using ultrafast 20-fs pulses. This work demonstrates that the energetic particle emissions from laser-cluster interactions can be optimized by manipulating the character of ultrafast laser pulses, i.e., pulse duration and sign of chirp. The mean and maximum ion energies as high as 0.1 and 2 MeV, respectively, are achieved when Xe clusters are irradiated by 500-fs pulses with negative chirp as an optimal condition under a laser peak intensity of 2x10{sup 17} W/cm{sup 2}. The mean ion energy obtained from 500-fs pulses with negative chirp is found to be about 1.6 times larger than that with positive chirp.
ISSN:1050-2947
1094-1622
DOI:10.1103/PhysRevA.67.061201