title: Noninterferometric topography measurements of fast moving surfaces.
abstract: The topography of moving surfaces is recovered by noninterferometric measurements. The phase reconstruction is derived by measuring the intensities of a backscattered pulsed laser light and solving the transport intensity equation (TIE). The TIE is solved by expanding the phase into a series of Zernike polynomials, leading to a set of appropriate algebraic equations. This technique, which enables us to make a direct connection between experiments and the TIE, has been successfully tested in gas gun experiments. In particular, the topographies of a moving projectile and the free surface of a shocked target were recovered.
authors.affiliation: Applied Physics Division, Soreq Nuclear Research Center (SNRC), 81800 Yavne, Israel. Shirly.Pinhasi@gmail.com
authors.forename: Shirly Vinikman
authors.initials: SV
authors.lastname: Pinhasi
authors.forename: Shalom
authors.initials: S
authors.lastname: Eliezer
authors.forename: Benny
authors.initials: B
authors.lastname: Glam
authors.forename: Gabi
authors.initials: G
authors.lastname: Appelbaum
authors.forename: Lior
authors.initials: L
authors.lastname: Bakshi