title: Effects of vacuum exposure on stress and spectral shift of high reflective coatings.
abstract: Coating stress and spectral shift are affected by changing from ambient to vacuum environments. This change can affect optical systems that are aligned in air and used in a vacuum or in a dry environment. Spectral shifts up to 3% and reflected wave-front changes up to 0.35 waves peak to valley are reported for conventional electron-beam deposition and ion-assisted deposition. Alternatively, ion-beam sputtered coatings have virtually no changes between different pressure environments.
authors.forename: C J
authors.initials: CJ
authors.lastname: Stolz
authors.forename: J R
authors.initials: JR
authors.lastname: Taylor
authors.forename: W K
authors.initials: WK
authors.lastname: Eickelberg
authors.forename: J D
authors.initials: JD
authors.lastname: Lindh