Skip to content Russ tests a tile-marking method based on a coating that contains titanium dioxide. The laser heats the coating and creates a dark, fused mark on the glassy ceramic surface, providing a useful contrast to the wood and metal processes explored earlier.
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What You’ll Learn
- How a coating can act as the intermediary between blue light and a difficult substrate.
- Why titanium dioxide is central to the tile-marking process explored here.
- How dot quality and coating consistency affect photographic results.
Using a Coating to Transfer the Energy
Instead of relying on the ceramic to absorb 455 nm light directly, the coating accepts the energy and drives a reaction at the surface. That creates a permanent dark mark after the remaining coating is removed.
Photo Quality Depends on the Dot
The test returns to one of the series’ central themes: photographic quality depends on small, consistent, well-separated marks. Variations in coating, spot shape or movement become visible immediately in the finished image.
Why This Session Matters
It shows how an intermediate coating can extend the usefulness of a wavelength to a substrate that is otherwise difficult to mark directly.
This page is a concise overview of the original video rather than a full transcript.
