This is accomplished by locking the laser to a resonance of a mechanically stable optical cavity (shown here as a triangular ring cavity).

The photocatalyst is inexpensive, readily available, non-toxic, chemically and mechanically stable, and has a high turnover.

Such crosslinks are important in generating mechanically stable structures such as hair, skin and cartilage.

GaN is a very hard, mechanically stable wide bandgap semiconductor material with high heat capacity and thermal conductivity.

The design is not mechanically stable; a slight imbalance makes the armature stick to one pole of the magnet.

More recent large telescopes have instead adopted the more compact and mechanically stable altazimuth mount.

As a result, the prepared gel is homogeneous, mechanically stable and free of monomers or radicals.

These are chemically inert and mechanically stable, even at elevated temperatures.

The emitter must be mechanically stable, not chemically sensitive to gases present in the vacuum atmosphere (like oxygen and water vapour), easily available, etc.

Mica is mechanically stable in micrometer-thin sheets which are relatively transparent to radiation (such as alpha particles) while being impervious to most gases.