Highly sensitive multichannel spectrometer for subpicosecond spectroscopy in the midinfrared

A spectrometer system is presented for time-resolved probing in the
midinfrared between 5 and 11 /tLmw ith a temporal resolution of
better than 400 fs. Multichannel detection with HgCdTe detector
arrays consisting of ten elements in combination with a high
repetition rate permits one to record weak absorbance changes with
an accuracy of 0.1 mOD.