Helium Neon Laser: Working, Characteristics, and Uses
What does a helium neon laser do? The Laser as a Light Source. Helium-neon (He-Ne) lasers are widely used for interferometry because they are inexpensive and provide a continuous, visible output. They operate normally at a wavelength of 633 nm, but modified versions are available with useful outputs at other visible and infrared wavelengths. Read … Read more