HGS (Mercury Thiogallate, HgGa2S4)
HgGa2S4, also known as Mercury Thiogallate, is a chemical compound composed of mercury, gallium, and sulfur. It is a type of material that is used in the manufacture of infrared detectors, including those used in night vision systems, thermal imaging cameras, and astronomical observations. This material has unique optical and electronic properties that make it suitable for these applications, including high absorption coefficients in the infrared region, low noise, and fast response times. Additionally, HgGa2S4 is considered to be a direct bandgap material, which makes it useful for the production of high-quality optical and electronic devices.