He-Ne Laser

He-Ne Laser

helium–neon laser or He-Ne laser, is a type of gas laser whose gain medium consists of a mixture of helium and neon (10:1) inside of a small bore capillary tube, usually excited by a DC electrical discharge. The pressure inside the tube is 1 mm of Hg. The best-known and most widely used He-Ne laser operates at a wavelength of 632.8 nm in the red part of the visible spectrum. For more technical detail please write to us.