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SECURITY FILM · LAYER ABLATION

Aluminium ablation
on holographic film.

Locally remove an aluminium layer on a holographic security film using a high‑energy MOPA 20 W laser.

NWS Laser / APPLICATION05

This application processes a holographic security film that includes an aluminium layer. The laser performs localised ablation of that layer in the defined area. This is material removal, not a simple colour change.

The source used is a high‑energy MOPA 20 W laser. Pulse settings and scanning strategy are developed according to the metal layer and the film structure. Removal quality and the condition of the substrate must be checked on the actual sample.

Layer to remove
Aluminum
Substrate
Holographic security film
Laser source
MOPA 20 W high energy
Understand MOPA technology
MOPA 20 W high‑energy laser ablation of an aluminium layer on a holographic security film
View of the holographic film and the area treated by laser ablation. Photo NWS Laser.

REMOVE A LAYER, VERIFY THE SUBSTRATE

A localised removal,
a film to qualify.

01

Identify the layer and substrate

The film composition, the aluminium layer and any protective coatings guide the tests. The area to open and acceptance criteria must be defined before development.

02

Tune the ablation

The high‑energy MOPA 20 W allows pulse shaping for this application. Scanning patterns and passes are adjusted on the real film. Wattage alone does not define the energy of each pulse.

03

Inspect the treated area

Inspection focuses on aluminium removal, edge quality and substrate condition. The security functions of the film must also be verified after processing.

APPLICATION STUDY

Start from your film,
and the layer to remove.

Provide the film structure, the metal layer, the area to treat and the functions to preserve. The NWS Laser team will prepare an ablation trial on your samples.