title: Antireflection Coatings for Silicon in the 2.5-50-microm Region.
abstract: It has been found that vacuum-deposited films of CsI, AgCl, TlBr, and TlCl are useful as antireflection coatings for silicon over a broad spectral range in the infrared. Measurements performed on a plane-parallel silicon plate coated with various thicknesses of the above materials yield transmittance values ranging from 99% at lambda = 2.9 microm to 88% at lambda = 27 microm. Experimental details of the coating process and properties of the coatings are discussed.
authors.forename: G H
authors.initials: GH
authors.lastname: Sherman
authors.forename: P D
authors.initials: PD
authors.lastname: Coleman