EPIR was founded by Dr. Siva Sivananthan in 1997 with a mission to protect those who protect us by developing specialized infrared materials and providing cutting-edge research for the U.S. defense industry. EPIR’s infrared technology, based on mercury cadmium telluride (HgCdTe or MCT), is used in high performance night vision cameras, imaging systems and detectors for a wide range of applications.