CVI Optical Components is offering a complete line of antireflective coatings for the 3-5µm and 8-12µm regions on germanium, silicon, ZnS, ZnSe and other IR transmitting materials. We specialize in high efficiency, non-thoriated antireflection coatings with outstanding environmental characteristics. All of our high durability coatings will pass the 10-days humidity test as specified in of MIL-STD-810C Method 507, Procedure I, and the 24 hours salt spray test as specified in MIL-M-13508. The coatings will also pass the severe abrasion test of MIL-F-48616 on substrates with a sufficiently high Knoop number.

Our non-radioactive, high-efficiency / high-durability antireflection coating on germanium (HEHD) is unique in combining the environmental durability of an exterior coating with the spectral characteristics required from an interior element.

The following charts represent a cross-section of our production capabilities in the infrared. We also offer a variety of antireflection coatings for the ultraviolet, visible and near infrared.

Single layer ARC on Si		V-coat at 10.6µm
Tave>90%, Tmin>85% between 3.0µm and 5.0µm Comparable results can be achieved on most IR substrates		R<0.15% at 10.6µm Can be applied to most IR substrates between 2.0µm and 11.75µm
Extended broadband on Si		ARC on ZnS or ZnSe
Tave>97% 1.8µm to 5.0µm Tmin>95%% 1.8µm to 5.0µm Higher transmission is obtainable with narrower bandwidths		Rave<1% 3.0µm to 5.5µm Rmax<2% 3.0µm to 5.5µm Can be shifted to FIR region
HEHD on Ge - reflectance		HEHD on Ge - transmittance
Rave<1% 8-11µm Rmax<2% 7.5-11.75µm		Tave>96% 8-11µm Tmin>93% 7.5-11.75µm

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