http://www.cnr.it/ontology/cnr/individuo/prodotto/ID280741
Ion dynamics in ultrafast laser ablation of copper target (Articolo in rivista)
- Type
- Label
- Ion dynamics in ultrafast laser ablation of copper target (Articolo in rivista) (literal)
- Anno
- 2013-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.3788/COL201311.093201 (literal)
- Alternative label
Ni, X.a , Anoop, K.K.b, Bianco, M.b, Amoruso, S.b, Wang, X.ab, Li, T.a, Hu, M.c, Song, Z.d (2013)
Ion dynamics in ultrafast laser ablation of copper target
in Chinese Optics Letters
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Ni, X.a , Anoop, K.K.b, Bianco, M.b, Amoruso, S.b, Wang, X.ab, Li, T.a, Hu, M.c, Song, Z.d (literal)
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- http://www.scopus.com/inward/record.url?eid=2-s2.0-84888632825&partnerID=q2rCbXpz (literal)
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- a School of Electronic Engineering, Tianjin University of Technology and Education, Tianjin 300222, China
b CNR-SPIN and Dipartimento di Fisica, Università degli Studi di Napoli Federico II, Complesso Universitario Monte S. Angelo, Via Cintia, Napoli 80126, Italy
c Ultrafast Laser Lab, Key Laboratory of Opto-electronic Information Technology, Ministry of Education (Tianjin University), Tianjin 300072, China
d Department and Institute of Physics, School of Science, Tianjin Polytechnic University, Tianjin 300387, China (literal)
- Titolo
- Ion dynamics in ultrafast laser ablation of copper target (literal)
- Abstract
- We investigate the angular distribution and average kinetic energy of ions produced during ultrafast laser ablation (ULA) of a copper target in high vacuum. Laser produced plasma (LPP) is induced by irradiating the target with Ti: Sapphire laser pulses of ~50 fs and 800 nm at an angle of incidence of 45°. An ion probe is moved along a circular path around the ablation spot, thereby allowing characterization of the time-of-flight (TOF) of ions at different angles relative to the normal target. The angular distribution of the ion flux is well-described by an adiabatic and isentropic expansion model of a plume produced by solid-target laser ablation (LA). The angular width of the ion flux becomes narrower with increasing laser fluence. Moreover, the ion average kinetic energy is forward-peaked and shows a stronger dependence on the laser pulse fluence than on the ion flux. Such results can be ascribed to space charge effects that occur during the early stages of LPP formation. © 2013 Chinese Optics Letters. (literal)
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