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Opt Lett. 2012 Mar 1;37(5):800-2. doi: 10.1364/OL.37.000800.

Cross-phase modulation imaging.

Author information

1
Department of Chemistry, Duke University, Durham, North Carolina 27708, USA.

Abstract

We demonstrate a cross-phase modulation measurement technique based on the sensitive detection of modulation transfer in a pump-probe setup. By modulating the amplitude of the pump beam and spectrally analyzing the probe beam, we achieve a rapid, background-free measurement of nonlinear phase modulation using power levels acceptable in biological imaging. This measurement technique would allow the extension of widely employed phase microscopy methods to the nonlinear regime, providing intrinsic and universal nonlinear contrast for biological imaging.

PMID:
22378398
PMCID:
PMC3371360
DOI:
10.1364/OL.37.000800
[Indexed for MEDLINE]
Free PMC Article

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