Optical Coatings & Filters
High-Performance Coatings & Filters for Optical Systems
G&H designs and manufactures advanced optical coatings and filters tailored for high-performance photonic systems across the UV, visible, and IR spectral ranges. Our coatings are engineered to precisely control reflection, transmission, absorption, and polarization characteristics to meet the most demanding optical, mechanical, and environmental specifications.
We offer a wide range of dielectric, metallic, and hybrid coatings applied using ion-assisted deposition (IAD), e-beam evaporation, or sputtering techniques. From high-durability anti-reflection (AR) coatings to narrowbandpass filters and high-reflectivity mirrors, our solutions are optimized for laser systems, imaging optics, sensing platforms, and more.
G&H’s optical coatings and filters are used in critical applications including aerospace & defense, life sciences, industrial laser processing, and semiconductor lithography. Each coating is carefully developed and validated for spectral precision, environmental resilience, and coating uniformity—ensuring long-term reliability in harsh conditions or high-power environments.
Whether for low-loss laser optics or multi-band imaging systems, we work closely with our customers to deliver coatings and filters that enable superior system performance.