title: Intensity-dependent loss properties of window materials at 248 nm.
abstract: Transmission of fused silica, CaF(2), LiF, and MgF(2) is measured using 450-fsec, 248-nm pulses in the range 10-120 GW/cm(2). Different loss mechanisms such as scattering of transmitted radiation, color-center formation, and multiphoton absorption were studied separately. For fused silica a two-photon absorption mechanism is found, while for CaF(2), LiF, and MgF(2) three-photon absorption and absorption due to color-center formation are found as dominant absorption mechanisms.
authors.forename: P
authors.initials: P
authors.lastname: Simon
authors.forename: H
authors.initials: H
authors.lastname: Gerhardt
authors.forename: S
authors.initials: S
authors.lastname: Szatmári