The development of a wide-field infrared spectroscopic imaging apparatus using a bolometer camera and feasibility test for forensic examination

摘要

A wide-field infrared spectroscopic imaging apparatus that uses a bolometer camera instead of a mercury cadmium telluride detector has been developed. The apparatus is equipped with a projection lens and utilizes, for Fourier spectroscopy, an imaging type interferometer resistant to vibrations. In contrast to the conventional systems, the apparatus has several advantages including short measurement times for large samples, low cost, and future portability. To test the applicability of this apparatus to forensic examination, a polystyrene film and different types of ink on an Al plate were tested.