title: Nano-FROG: Frequency resolved optical gating by a nanometric object.
abstract: We present a technique to characterize ultrashort pulses at the focal plane of a high numerical aperture objective with unprecedented spatial resolution, by performing a FROG measurement with a single nanocrystal as nonlinear medium. This approach can be extended to develop novel phase-sensitive techniques in laser scanning microscopy, probing the microscopic environment by monitoring phase and amplitude distortions of femtosecond laser pulses.
authors.affiliation: Université de Genève, GAP-Biophotonics, 20 rue de l'Ecole de Médecine, 1211 Geneva, Switzerland.
authors.forename: Jerome
authors.initials: J
authors.lastname: Extermann
authors.forename: Luigi
authors.initials: L
authors.lastname: Bonacina
authors.forename: Francois
authors.initials: F
authors.lastname: Courvoisier
authors.forename: Denis
authors.initials: D
authors.lastname: Kiselev
authors.forename: Yannick
authors.initials: Y
authors.lastname: Mugnier
authors.forename: Ronan
authors.initials: R
authors.lastname: Le Dantec
authors.forename: Christine
authors.initials: C
authors.lastname: Galez
authors.forename: Jean-Pierre
authors.initials: JP
authors.lastname: Wolf
mesh_terms: D002462:Cell Membrane / Q000473:pathology; D004867:Equipment Design; D006863:Hydrogen-Ion Concentration; D007834:Lasers; D018613:Microscopy, Confocal / Q000295:instrumentation* / Q000379:methods*; D036641:Microscopy, Fluorescence, Multiphoton / Q000295:instrumentation* / Q000379:methods*; D015233:Models, Statistical; D055095:Optics and Photonics / Q000295:instrumentation*; D017785:Photons; D013499:Surface Properties; D013997:Time Factors