A synchrotron-based single-shot spectrometer for mid-infrared measurements

A Mid-Infrared spectrometer specifically suitable for non-cyclic or slow cycling processes was developed for microsecond time-resolved measurements. The spectrometer overcomes the limit of conventional time-resolved Fourier-transform techniques such as step-scan FTIR which require cyclic systems where the reaction cascade is to be triggered thousands of times and in quick succession. In our approach, a combination of a fast linear detector array with highly brilliant synchrotron radiation source and a dispersive spectrometer core allows investigations of irreversible reaction cascades with high signal-to-noise ratio. We discuss first measurements to estimate the performance achieved so far.