Photothermal Spectroscopy Corp. (PSC) is a company that provides optical photothermal infrared spectroscopy (O-PTIR) equipment. Its products include mIRage, an IR microscope that provides sub-micron spectroscopy and imaging; mIRage R, a submicron IR and Raman microscopy; and mIRage-LS, a fluorescence-guided sub-micron IR and simultaneous Raman spectroscopy. The company serves contamination, life science, polymers, and microplastics applications.