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Featured researches published by V. Piñon.


Applied Spectroscopy Reviews | 2013

Laser-Induced Breakdown Spectroscopy for Chemical Mapping of Materials

V. Piñon; M.P. Mateo; G. Nicolas

Abstract: Analytical techniques able to perform spatially resolved analysis are highly demanded in the surface analysis and material science fields. Compared to other analytical techniques usually employed, laser-induced breakdown spectroscopy (LIBS) offers several advantages, such as simplicity and robustness of instrumentation, which permit on-line and in situ measurements. No or minimal sample preparation is required, and the analysis of any sample without restrictions on the shape, size, or conductive nature can be performed under atmospheric conditions in a matter of seconds. In this work, a review of the different instrumental approaches employed in the generation of compositional maps as well as a detailed discussion of the different applications that involve the use of LIBS to obtain two-dimensional or even three-dimensional chemical maps is presented.


Journal of Analytical Atomic Spectrometry | 2007

3D chemical maps of non-flat surfaces by laser-induced breakdown spectroscopy

G. Nicolas; M.P. Mateo; V. Piñon

In this work, the possibility of performing 3D multielemental chemical maps of non-flat samples by laser-induced breakdown spectroscopy (LIBS) is demonstrated for the first time. In a first step, information of surface morphology of the area to be analyzed is obtained and digitized by a simple experimental arrangement. Using this information, a point-to-point map is generated by the LIBS technique preserving, for every position in the analyzed area, a constant distance between sample surface and both focusing and collection systems. Finally, morphological and spectral information are associated by a homemade computer application which allows plotting the compositional maps in different formats. 3D (X, Y and Z-depth) multielemental chemical images of samples presenting different nature and contour will be shown and the feasibility of this approach will be demonstrated.


Spectrochimica Acta Part B: Atomic Spectroscopy | 2008

Double pulse laser-induced breakdown spectroscopy with femtosecond laser pulses ☆

V. Piñon; C. Fotakis; G. Nicolas; D. Anglos


Spectrochimica Acta Part B: Atomic Spectroscopy | 2009

Optical emission studies of plasma induced by single and double femtosecond laser pulses

V. Piñon; Demetrios Anglos


Spectrochimica Acta Part B: Atomic Spectroscopy | 2005

Compositional analysis of Hispanic Terra Sigillata by laser-induced breakdown spectroscopy

A.J. López; G. Nicolas; M.P. Mateo; V. Piñon; M.J. Tobar; A. Ramil


Surface and Interface Analysis | 2006

Improvements in depth‐profiling of thick samples by laser‐induced breakdown spectroscopy using linear correlation

M.P. Mateo; G. Nicolas; V. Piñon; A. Yañez


Applied Surface Science | 2005

Laser cleaning: an alternative method for removing oil-spill fuel residues

M.P. Mateo; G. Nicolas; V. Piñon; A. Ramil; A. Yañez


Spectrochimica Acta Part B: Atomic Spectroscopy | 2005

Versatile software for semiautomatic analysis and processing of laser-induced plasma spectra

M.P. Mateo; G. Nicolas; V. Piñon; J.C. Alvarez; A. Ramil; A. Yañez


Analytica Chimica Acta | 2004

Laser cleaning of Prestige tanker oil spill on coastal rocks controlled by spectrochemical analysis

M.P. Mateo; G. Nicolas; V. Piñon; J.C. Alvarez; A. Ramil; A. Yañez


Applied Surface Science | 2012

Effect of surface topography in the generation of chemical maps by laser-induced plasma spectroscopy

I. Lopez-Quintas; V. Piñon; M.P. Mateo; G. Nicolas

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G. Nicolas

University of A Coruña

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M.P. Mateo

University of A Coruña

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A. Yañez

University of A Coruña

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A. Ramil

University of A Coruña

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J.C. Alvarez

University of A Coruña

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A.J. López

University of A Coruña

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M.J. Tobar

University of A Coruña

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