Fourier transform infrared (FTIR) microscopy is a powerful analytical technique for characterization of polymeric materials. In certain applications, however, it would be advantageous to obtain higher spatial resolution than what is presently feasible. This contribution reviews the key principles of FTIR microscopy and presents a design enhancement that increases the spatial resolution that may be obtained with a standard FTIR microscope. Representative results are shown, which illustrate the technique’s effectiveness.