Because of the low brightness of traditional infrared light source, the spatial resolutio and the signal-to-noise (S/N) will do lower.It baa restricted the application of RTIR microspectroscopy.

• 由于常规红外光源的低亮度、低空间分辨率、得到的显微光谱信噪比差，限制了红外显微光谱技术的应用。