Wavefront-division lateral shearing autocorrelator for ultrafast laser microscopy

Quercioli, F., Tiribilli, B. and Vassalli, M. (2004) Wavefront-division lateral shearing autocorrelator for ultrafast laser microscopy. Optics Express, 12(18), pp. 4303-4312. (doi: 10.1364/OPEX.12.004303) (PMID:19483977)

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Nonlinear optical microscopy is a new and rapidly growing technique within which ultrafast laser technology finds a wide range of applications. Pulse widening, due to the microscope optics, is an issue of major concern for nonlinear excitation efficiency. We herewith describe a novel, simple and inexpensive autocorrelation technique to characterize the laser temporal behavior at the microscope focal plane. The method is based on a wavefront-division lateral shearing interferometer which is inserted into the microscope optical path like an ordinary filter, while a spatially uniform fluorescent specimen is observed. The two-photon excited fluorescent image provides the second-order autocorrelation curve.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Vassalli, Professor Massimo
Authors: Quercioli, F., Tiribilli, B., and Vassalli, M.
College/School:College of Science and Engineering > School of Engineering > Biomedical Engineering
Journal Name:Optics Express
Publisher:Optical Society of America
ISSN (Online):1094-4087

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