Publication detail

Effect of sample surface treatment on Laser Ablation

SALAJKOVÁ, Z. HOLÁ, M. PROCHAZKA, D. POŘÍZKA, P. DE GIACOMO, A. KAISER, J.

Original Title

Effect of sample surface treatment on Laser Ablation

Type

article in a collection out of WoS and Scopus

Language

English

Original Abstract

Nowadays there has been great interest in the possibility of performing semi-destructive analysis, using methods based on laser ablation, such as Laser Induced Breakdown Spectroscopy (LIBS) or Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS). The laser-matter interaction at the surface plays a key role during single pulse analysis when influencing the performances of analytical methods based on laser ablation. In this work, the effect of the surface has been investigated from two different points of view; one related to the intrinsic roughness of the surface after sample grinding and another one related to the effect of the deposition of AuNPs on the surface. In both the cases, the effect of the surface on the laser ablation features in LIBS and LA-ICP-MS is discussed to point out some perspectives and limitations of surface manipulation and sample treatment. Firstly, the effect of the surface topography on laser ablation was studied on aluminium alloy and glass standard [1]. Secondly, the deposition of the nanoparticles with various size and concentration was investigated as an alternative approach in surface treatment [2]. Both treatments modify the distribution of the pulse energy on the sample surface during the laser irradiation and cause different phenomena spacing from differential ablation and fractionation to plasmonic coupling and signal enhancement. The systematic study on the effect of the laser irradiance on the surface-mediated ablation, as mentioned above, reveals that the suitable surface treatment can lower the ablation threshold, enhance analytical response, suppress the matrix effect and even change the elemental fractionation and structure of aerosol. Moreover, the results of the study demonstrate that surface properties must be considered as a critical parameter for data interpretation during single pulse analysis and surface mapping.

Keywords

LIBS, NELIBS, nanoparticles, surface treatment, surface topography, laser ablation

Authors

SALAJKOVÁ, Z.; HOLÁ, M.; PROCHAZKA, D.; POŘÍZKA, P.; DE GIACOMO, A.; KAISER, J.

Released

24. 9. 2020

Publisher

LIBS2020

Location

Kyoto, Japan

BibTex

@inproceedings{BUT166436,
  author="SALAJKOVÁ, Z. and HOLÁ, M. and PROCHAZKA, D. and POŘÍZKA, P. and DE GIACOMO, A. and KAISER, J.",
  title="Effect of sample surface treatment on Laser Ablation",
  year="2020",
  publisher="LIBS2020",
  address="Kyoto, Japan"
}