EVERYDAY SCIENCE

Detailed explanation-1: -Visible lasers are primarily dominated by gas lasers and tunable dye lasers. The red helium-neon laser at 633 nm is one of the most commonly used lasers. The argon ion laser covers the blue and green spectrum with the most prominent wavelengths at 488 and 515 nm.

Detailed explanation-2: -Gas Lasers A gas laser is a laser in which an electric current is sent through a gas to generate light through a process known as population inversion. Examples of gas lasers include carbon dioxide (CO2) lasers, helium–neon lasers, argon lasers, krypton lasers, and excimer lasers.

Detailed explanation-3: -The most common of all gas lasers is the helium-neon (He-Ne) laser. The presence of two atomic species (helium and neon) in this gas laser might suggest that the medium is made of molecules, but these two species of atoms do not form a stable molecule. In fact, all inert atoms like helium, argon, krypton, etc.

Detailed explanation-4: -CO2 lasers are next to solid-state lasers the most common and most powerful and hard-wearing industrial lasers used. With a ratio of up to 20% between output power and pump power, they are also very efficient.

Detailed explanation-5: -Cutting. Engraving. Drilling. Marking. Surface Modification.