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TECHSPEC^® components are designed, specified, or manufactured by Edmund Optics. Learn More

Diamond-Like Carbon (DLC) Coated Germanium Windows

TECHSPEC® Diamond-Like Carbon (DLC) Coated Germanium Windows

Meets Severe Abrasion Requirements of MIL-C-675C
≥90% Transmission from 8 - 11.5µm
Ideal for Harsh Environments
Uncoated, 3-5 Micron BBAR, and 8 - 12 Micron BBAR Coated Germanium Windows are also Available

TECHSPEC® Diamond-Like Carbon (DLC) Coated Germanium Windows have been designed with durability in mind. Featuring a high efficiency broadband anti-reflection coating on one surface and a specially designed DLC coating on the other surface, these windows feature excellent transmission and environmental resistance. The DLC coated surface is designed to withstand temperature cycling from -80 to +160°F, salt spray for a continuous period of 24 hours, salt solubility for an immersion period of 24 hours, and 5,000 wiper oscillations in a sand and slurry mixture. Further, TECHSPEC DLC Coated Germanium Windows meet the MIL-C-675C requirements for severe abrasion.

Technical Information

Coating Specifications
Specification	AR Coating	DLC Coating
Adhesion	per MIL-C-48497A Paragraph 4.5.3.1	per MIL-M-13508C Paragraph 4.4.6
Abrasion	Moderate, per MIL-C-48497A Paragraph 4.5.3.3	Severe, per MIL-C-675C Paragraph 4.5.10
Humidity	per MIL-C-48497A Paragraph 4.5.3.2	≥24 Hours per MIL-C-675C paragraph 4.5.8
Salt Solubility	-	≥24 Hours Immersion per MIL-C-675C paragraph 4.5.7
Salt Spray	-	≥24 Hours per MIL-C-675C paragraph 4.5.9
Temperature (°F)	-80 to +160 per MIL-C-48497A Paragraph 4.5.4.1	-80 to +160 per MIL-C-48497A Paragraph 4.5.4.1
Solubility and Cleaning	per MIL-C-48497A Paragraph 4.5.4.2	-
Water Solubility	24 Hours, per MIL-C-48497A Paragraph 4.5.5.3	-
Wiper	-	≥5,000 Wipes of Sand/Slurry per TS-1888