1, moisture detection: The sensitivity of the SWIR lens to water allows it to clearly detect bruises or soft spots in foods with high water content, as well as confirm whether dyed textiles are dry enough

2, plastic detection: Many plastics that are opaque in visible light appear translucent in the SWIR band, which helps to detect the volume of products in sealed containers, as well as check the liquid filling level in plastic bottles

3, solar panel inspection: SWIR lens can penetrate the silicon wafer, so that it can detect the surface and internal defects of the silicon wafer, which is very useful for the raw material detection of solar cells

4, Mineral mining: SWIR technology is crucial in the mining industry and mineral identification, because the OH bonds in many minerals can only be identified within the SWIR range

5. Medical imaging: SWIR imaging also shows potential in the medical field because of its ability to provide high-contrast images that can help in preclinical and clinical applications

6, detection of methane: SWIR technology is very sensitive to methane gas and can detect trace amounts of greenhouse gases, which is very useful for monitoring pollution

7, Free space optical communication (FSOC) : SWIR lasers and cameras can be used to wirelessly transmit data in the atmosphere and space, especially in the 1550nm band, because infrared light in this band is less interfered with in the atmosphere

SWIR lenses and cameras usually use special sensor materials, such as indium gallium arsenide (InGaAs), because SWIR light is able to travel directly through silicon materials. These sensors have a quantum efficiency of greater than 80% in the 950-1650 nm band