Helium-Neon is a type of gas laser that uses a mixture of helium and neon gases to produce a coherent light beam. It operates by exciting the gas atoms with electrical energy, causing them to emit light at a specific wavelength, typically in the red region of the spectrum. This laser is known for its low power output and is commonly used in applications like laser pointers and barcode scanners. The Helium-Neon laser is valued for its stability and ease of use. It produces a continuous wave of light, making it suitable for various scientific and industrial applications. Its simple design and reliable performance have made it a popular choice in laboratories and educational settings.