Coherent two-dimensional fluorescence micro-spectroscopy

We have developed coherent two-dimensional (2D) fluorescence micro-spectroscopy which probes the nonlinear optical response at surfaces via fluorescence detection with sub-micron spatial resolution. This enables the investigation of microscopic variations in heterogeneous systems. An LCD-based pulse...

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Bibliographic Details
Published in:Optics express 2018-02, Vol.26 (4), p.3915-3925
Main Authors: Goetz, Sebastian, Li, Donghai, Kolb, Verena, Pflaum, Jens, Brixner, Tobias
Format: Article
Language:English
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Summary:We have developed coherent two-dimensional (2D) fluorescence micro-spectroscopy which probes the nonlinear optical response at surfaces via fluorescence detection with sub-micron spatial resolution. This enables the investigation of microscopic variations in heterogeneous systems. An LCD-based pulse shaper in 4f geometry is used to create collinear trains of 12-fs visible/NIR laser pulses in the focus of an NA = 1.4 immersion-oil microscope objective. We demonstrate the capabilities of the new method by presenting 2D spectra, analyzed via phase cycling, as a function of position of selected sub-micron regions from a laterally nanostructured polycrystalline thin film of fluorinated zinc phthalocyanine (F ZnPc).
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.26.003915