Journal
PHYSICAL REVIEW A
Volume 104, Issue 6, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.104.L061101
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Funding
- MEYS-large research infrastructure project ELI Beamlines [LM2018141]
- Project Advanced research using high intensity laser produced photons and particles (ADO-NIS) from the European Regional Development Fund [CZ.02.1.01/0.0/0.0/16_019/0000789]
- Project Structural dynamics of biomolecular systems (ELIBIO) from the European Regional Development Fund [CZ.02.1.01/0.0/0.0/15_003/0000447]
- Ministry of Education, Youth and Sports
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Efficient acceleration of ambient gas ions was observed in the presence of a laser-irradiated nanoparticle, with He+ ions gaining higher maximum kinetic energy compared to Cs+ and Cl+ ions. The environment was found to play an essential role in the interaction of intense light with dense matter.
We report on a surprisingly efficient acceleration of ambient gas ions in the presence of a laser-irradiated nanoparticle. Near-infrared laser pulses with an intensity of 2 x 10(15) W cm(-2) are used to irradiate a single CsCl nanoparticle surrounded by a helium gas with a density of around 10(15) cm(-3). In this interaction He+ ions gain higher maximum kinetic energy than Cs+ and Cl+ ions. We suggest that He+ ions are accelerated by a positive charge at the nanoparticle surface whereas the movement of Cs+ and Cl+ ions is interlinked to the expansion of the nanoplasma electrons. Our results reveal an essential contribution of the environment to the interaction of intense light with dense matter.
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