Optical interference coatings play a pivotal role in laser systems and their associated applications, enabling precise control over the spectral, temporal, polarization, and spatial characteristics of the laser beam. These coatings are intricately linked to the advancement of new laser technology. In high-power laser systems, the intense interaction between laser beams and optical components can result in adverse effects, including absorption, heat generation, wavefront distortion, spectral alterations, and potential laser damage. Conquering these challenges requires the development of cutting-edge optical coatings to enhance the performance and durability of high-power lasers. Additionally, rigorous metrology measures must be implemented to ensure that these lasers meet the specified performance requirements.

This Research Topic seeks to compile original and substantial contributions within the field. We are interested in a wide range of topics, including novel concepts and designs tailored for high-power laser radiation, advancements in coating materials and deposition techniques to enhance quality. We also welcome reports on the practical application of optical coatings in high-power laser systems and analyses of their performance in real-world environments. Given the demanding nature of high-end coatings, precise metrology is imperative. Therefore, we encourage submissions that detail specific metrological approaches for assessing these coatings' performance in terms of absorption, optical properties, laser damage resistance, scattering, and other relevant aspects, all of which fall within the scope of this Research Topic.

Topics of interest include, but are not limited to, the following:
• Optical coatings for laser applications;
• Metrology for characterizing high-end optical coatings and substrates;
• Low loss optical coatings;
• Laser damage of optical coatings;
• Ultrashort laser optics;
• CW laser optics;
• ns laser optics;
• Laser damage threshold measurement.

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Advanced Optical Technologies

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