title: In situ measurement and reconstruction in three dimensions of femtosecond inscription-induced complex permittivity modification in glass.
abstract: We demonstrate a new approach to in situ measurement of femtosecond-laser-pulse-induced changes in glass, enabling the three-dimensional reconstruction of the induced complex permittivity modification. The technique can be used to provide single-shot and time-resolved quantitative measurements with a micrometer-scale spatial resolution.
authors.affiliation: Photonics Research Group, Aston University, Aston Triangle, Birmingham B4 7ET, UK.
authors.forename: A V
authors.initials: AV
authors.lastname: Turchin
authors.forename: Mykhaylo
authors.initials: M
authors.lastname: Dubov
authors.forename: J A R
authors.initials: JA
authors.lastname: Williams