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Wavelength-of-he-ne-laser-light, a helium–neon laser or he-ne laser, is a type of gas laser whose gain medium consists of a mixture of 90% helium and 10% neon at a total pressure of about 1 torr inside of a small electrical discharge. 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.. Exercise iii.2: from the wavelength of the he-ne laser line, λ = 6.328 x 10-7 m, calculate its frequency. thus we get a band of frequencies eligible to participate in stimulated emission and thus to be amplified. the laser light produced then also has a band of frequencies centered about v, the laser emits light with a wavelength of 632.82 nm in air. the wavelength is completely stable and can be used as a reference. the laser light is emitted in a well-defined direction as a thin light ray..

In the experiment p5.3.4.2, the wavelength of an he-ne laser is determined from the change in the interference pattern when moving an interferometer mirror using the shifting distance d s of the mirror. during this shift, the inte, for the love of physics - walter lewin - may 16, 2011 - duration: 1:01:26. lectures by walter lewin. they will make you ♥ physics. recommended for you.

He-ne stands for helium-neon. the he-ne laser active medium consists of two gases which do not interact form a molecule. therefore he-ne laser is one type of atomic gas lasers.