Publication detail

Femtosecond laser ablation elemental mass spectrometry

HERGENRODER, R., SAMEK, O., HOMMES, V.

Original Title

Femtosecond laser ablation elemental mass spectrometry

Type

journal article - other

Language

English

Original Abstract

Laser ablation mass spectrometry (LA-MS) has always been an interesting method for the elemental analysis of solid samples. Chemical analysis with a laser requires small amounts of material. Depending on the analytical detection system, subpicogram quantities may be sufficient. In addition, a focused laser beam permits the spatial characterization of heterogeneity in solid samples typically with micrometer resolution in terms of lateral and depth dimensions. With the advent of high-energy, ultra-short pulse lasers, new possibilities arise. The task of this review is to discuss the principle differences between the ablation process of short (> 1 ps) and ultra-short (< 1 ps) pulses. Based on the timescales and the energy balance of the process that underlies an ablation event, it will be shown that ultra-short pulses are less thermal and cause less collateral damages than longer pulses. The confinement of the pulse energy to the focal region guarantees a better spatial resolution in all dimensions and improves the analytical figures of merit (e.g., fractionation). Applications that demonstrate these features and that will be presented are in-depth profiling of multi-layer samples and the elemental analysis of biological materials.

Keywords

femtosecond laser; laser ablation; time-of-flight; inductively coupled plasma mass spectrometry

Authors

HERGENRODER, R., SAMEK, O., HOMMES, V.

RIV year

2006

Released

1. 6. 2006

ISBN

0277-7037

Periodical

Mass Spectrometry Reviews

Year of study

25

Number

4

State

United States of America

Pages from

21

Pages to

25

Pages count

6

BibTex

@article{BUT43554,
  author="Ota {Samek}",
  title="Femtosecond laser ablation elemental mass spectrometry",
  journal="Mass Spectrometry Reviews",
  year="2006",
  volume="25",
  number="4",
  pages="21--25",
  issn="0277-7037"
}