Abstract
A newly designed multichannel Fourier transform infrared spectrometer has been constructed for single-event time-resolved spectroscopy. It is capable of measuring unrepeatable transient events such as phase transitions, explosions, etc., with a time resolution of up to 5.14 ms. The mid-infrared region of 4500–2500 cm−1 is covered with a maximum spectral resolution of 13 cm−1. The developed system is used to measure the phase transitions of alkanes. The solid–solid and solid–liquid phase transitions of octadecane and nonadecane have been studied with time resolutions of 5–50 ms.
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