Thursday, September 25, 2025
Andover CorporationAndover Corporation specializes in advanced infrared coatings and filters spanning 2 µm–14 µm. Using magnetron sputtering and e-beam ion-assist, their IR products deliver durability, high transmission (>85%), and deep blocking (OD3). Offerings include custom AR, bandpass, long-pass, short-pass, and dichroic filters optimized for various substrates such as germanium, silicon, sapphire, calcium fluoride, zinc selenide, and chalcogenide glass. Applications range from astronomy and thermal imaging to surveillance, weapons systems, gas analysis, and detector windows. Additional products include IR neutral density filters, DLC broadband AR coatings, and dual-band or ultra-narrowband custom solutions.