title: Reconfigurable wavefront sensor for ultrashort pulses.
abstract: A highly flexible Shack-Hartmann wavefront sensor for ultrashort pulse diagnostics is presented. The temporal system performance is studied in detail. Reflective operation is enabled by programming tilt-tolerant microaxicons into a liquid-crystal-on-silicon spatial light modulator. Nearly undistorted pulse transfer is obtained by generating nondiffracting needle beams as subbeams. Reproducible wavefront analysis and spatially resolved second-order autocorrelation are demonstrated at incident angles up to 50° and pulse durations down to 6 fs.
authors.affiliation: Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie, Berlin, Germany.
authors.forename: Martin
authors.initials: M
authors.lastname: Bock
authors.forename: Susanta Kumar
authors.initials: SK
authors.lastname: Das
authors.forename: Carsten
authors.initials: C
authors.lastname: Fischer
authors.forename: Michael
authors.initials: M
authors.lastname: Diehl
authors.forename: Peter
authors.initials: P
authors.lastname: Börner
authors.forename: Ruediger
authors.initials: R
authors.lastname: Grunwald