Abstract

Transient two-dimensional infrared (2D IR) correlation spectroscopy coupled with real-time Fourier transform infrared (RT FT-IR) measurement was used to analyze the reaction processes of photopolymerization systems. Unlike the previously developed 2D IR methods based on sinusoidally varying IR signals, a newly developed 2D correlation formalism applicable to transient spectroscopic signals having an arbitrary waveform was used. By this method, features associated with spectral intensity changes and peak shifts arising from polymerization reactions were clearly observed.

BoxCARS 2D IR spectroscopy with pulse shaping

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Amplification of mid-IR continuum for broadband 2D IR spectroscopy

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Ultrafast 2D IR microscopy

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Waveguide-enhanced 2D-IR spectroscopy in the gas phase

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