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Dielectric Laser Line Mirrors

Known as the most important type of mirror in laser technology and general optics, dielectric mirrors contain multiple thin layers that exploit the combined effect of reflection at the interfaces between the different layers.

They are commonly made as first surface mirrors, which is that the reflecting surface is at the front surface such that light does not propagate through any substrates before being reflected. This way, any possible propagation losses in the transparent medium are avoided, and additional reflections will be seen at the first surface.

Laser Line Mirrors are designed with specific laser types or wavelengths and used for beam-steering in demanding laser applications. Their reflectivity is more than 99%, and their coating is very durable which makes it easier to clean and more resistant to laser damage. It has been optimized for high reflectance at distinct wavelengths.