As16 Se16

As₁₆Se₁₆ is a chalcogenide glass ceramic composed of arsenic and selenium in equimolar proportions, belonging to the family of amorphous or glassy inorganic materials. This material is primarily of research and developmental interest rather than established industrial production, with potential applications in infrared optics, photonic devices, and specialized electronic components where its wide infrared transparency window and controllable refractive index are advantageous. The As-Se binary system is notable for its ability to form stable amorphous phases and has been investigated for use in fiber optics, non-linear optical elements, and phase-change memory devices, though it remains less common than oxide or fluoride glasses in mainstream engineering practice.