Nano-FROG: Frequency resolved optical gating by a nanometric object.
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.
Extermann
Jerome
J
Université de Genève, GAP-Biophotonics, 20 rue de l'Ecole de Médecine, 1211 Geneva, Switzerland.
Bonacina
Luigi
L
Courvoisier
Francois
F
Kiselev
Denis
D
Mugnier
Yannick
Y
Le Dantec
Ronan
R
Galez
Christine
C
Wolf
Jean-Pierre
JP
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