G&H designs and manufactures advanced optical coatings and filters to meet the most demanding requirements in imaging, sensing, and laser systems. Our portfolio spans narrowband and broadband filters, beamsplitters, polarizers, mirrors, and custom-coated substrates—engineered for precision across UV, visible, and infrared wavelengths.
We offer high-performance solutions optimized for MWIR and LWIR applications in defense, aerospace, industrial, and medical markets.
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.
