title: Synthetic infrared spectra.
abstract: We have designed, microfabricated, and characterized a diffractive optical element that reproduces the infrared spectrum of HF from 3600 to 4300 cm(-1) . The reflection-mode diffractive optic consists of 4096 lines, each 4.5mum wide, at 16 discrete depths relative to the substrate from 0 to 1.2 mum and was fabricated upon a silicon wafer by anisotropic reactive ion-beam etching in a four-mask-level process. We envisage the use of diffractive optical elements of this type as the basis for a new class of miniaturized, remote chemical sensor systems based on correlation spectroscopy.
authors.forename: M B
authors.initials: MB
authors.lastname: Sinclair
authors.forename: M A
authors.initials: MA
authors.lastname: Butler
authors.forename: S H
authors.initials: SH
authors.lastname: Kravitz
authors.forename: W J
authors.initials: WJ
authors.lastname: Zubrzycki
authors.forename: A J
authors.initials: AJ
authors.lastname: Ricco