CIOP 05384
CENTRO DE INVESTIGACIONES OPTICAS
Unidad Ejecutora - UE
artículos
Título:
Electric field perturbation measurement of the interaction between two laser-induced plasma
Autor/es:
C. SÁNCHEZ-AKÉ; F. BREDICE; M. VILLAGRÁN MUNIZ
Revista:
REVIEW OF SCIENTIFIC INSTRUMENTS
Editorial:
AMER INST PHYSICS
Referencias:
Lugar: New York; Año: 2012 vol. 83 p. 1 - 5
ISSN:
0034-6748
Resumen:
The interaction between two ns-laser-induced plasmas in air at the early-stage of expansion has been analyzed by using a method based on the direct measurement of the perturbation of an externally applied electric field. In this experimental method, the plasmas were produced by focusing two laser beams between the plates of a parallel-plane-charged capacitor. These plasmas produce a perturbation in the electric field of the capacitor which can be measured as a voltage change across a resistor connected to the ground plate. It was found that for delays shorter than 5 ns, the interaction between plasmas is mainly due to the interaction of the dipole-charge distribution of each plasma. For longer time delays, the shielding effect was dominant. © 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.3683453]
