There are various ways to classify laser lights, among which the most core is classification by laser medium, which is mainly divided into 4 categories, each with different characteristics and application scenarios. The first type is solid-state laser lights, which use ruby and Nd:YAG (neodymium-doped yttrium aluminum garnet) as the medium. They have high output power and stable beam, and are often used in outdoor large-scale performances, laser cutting and other scenarios. The second type is gas laser lights, which use helium-neon, carbon dioxide, etc. as the medium. Helium-neon laser is mostly red with moderate brightness, suitable for small-scale popular science displays; carbon dioxide laser is mostly used in industrial fields. The third type is semiconductor laser lights, which use semiconductor chips as the medium. They are small in size, low in power consumption and long in service life, and are currently the most commonly used type for home and small stages, such as laser pointers and small stage laser lights. The fourth type is liquid laser lights, which use organic dyes as the medium. They can flexibly adjust the wavelength to achieve multi-color switching, but their stability is poor, and they are mostly used in scientific research experiments. Mastering the characteristics of different types can help you accurately select the appropriate laser light according to your needs.
