title: A thin film optical cavity to induce absorption or thermal emission.
abstract: Several variations are given of a relatively simple thin film optical cavity construction which can be designed either to induce absorption in a weak absorber or to induce thermal emission from a weak emitter. In both cases the cavity is very selective with respect to polarization and wavelength.
authors.forename: N J
authors.initials: NJ
authors.lastname: Harrick
authors.forename: A F
authors.initials: AF
authors.lastname: Turner