Laser ablation

About the Technique

When coupled to an Inductively Coupled Plasma (ICP) source, laser ablation enables in-situ elemental or isotopic micro-analysis of engineered, geochemical, or biological materials.

Using a short-wavelength (193 nm) laser allows a wide range of material types to be sampled with very high spatial resolution.

Samples can be examined over small areas — such as individual mineral grains — directly from the solid material, eliminating the need for bulk chemical digestions. Larger areas can also be analysed, with spot sizes ranging from 1 μm to 400 μm depending on the application.

Analyses can be conducted as down-hole profiles (through the depth of a sample), as line scans across surfaces, or to create detailed elemental maps.

Current Instumentation

Sample requirements

Laser ablation material is typically mounted on glass slides or in epoxy resin mounts. These are then cut and polished prior to ablation.

For further information contact Dr Huiqing (Jeffrey) Huang