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Two-photon absorption and self-phase modulation measurements with shaped femtosecond laser pulses

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Abstract

We show that phase-sensitive detection of spectral hole refilling can yield information about self-phase modulation and two-photon absorption coefficients. We expect that, when applied to tissue microscopy, this technique will allow the study of endogenous molecular markers beneath the surface, even if those markers are nonfluorescent.

© 2005 Optical Society of America

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