Two-color interferometry and shadowgraphy characterization of an orthogonal double-pulse laser ablation

Journal Article · Mon Aug 01 00:00:00 EDT 2011 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.3610510· OSTI ID:22038659

Sangines, R; Sobral, H ^[1]

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1. Centro de Ciencias Aplicadas y Desarrollo Tecnologico, Universidad Nacional Autonoma de Mexico (CCADET-UNAM), Apartado Postal 70-186, Mexico DF, 04510 (Mexico)

Orthogonal double pulse laser ablation on aluminum target at atmospheric pressure was studied by time-resolved optical emission spectroscopy, shadowgraphy and two-color interferometry. Studies were realized as a function of the distance from the first pulse plasma induced in air to the sample surface. The evolution of the electron and neutral particles densities were determined by two-color interferometry. Line intensification mechanisms are discussed based on the interferometry results and the plumes interaction dynamics. It was found that the sample heating by the preablation pulse could contribute to the observed emission enhancement.

• OSTI ID: 22038659
• Journal Information: Journal of Applied Physics, Vol. 110, Issue 3; Other Information: (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ABLATION
AIR
ALUMINIUM
ALUMINIUM ALLOYS
ATMOSPHERIC PRESSURE
COLOR
DISTANCE
ELECTRONS
EMISSION SPECTROSCOPY
INTERFEROMETRY
LASER-PRODUCED PLASMA
LUMINESCENCE
NEUTRAL PARTICLES
PULSES
SURFACES
TIME RESOLUTION