A helium–neon laser or He-Ne laser is a type of gas laser whose high energetic medium gain medium consists of a mixture of ratio (between 5:1 and 20:1)...
14 KB (1,684 words) - 23:37, 19 July 2024
Noble gas (redirect from Helium family (p6))
the naturally occurring members of group 18 of the periodic table: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). Under...
72 KB (7,317 words) - 03:08, 27 July 2024
amplify light coherently. Gas lasers using many different gases have been built and used for many purposes. The helium–neon laser (HeNe) can operate at many...
114 KB (12,669 words) - 04:09, 31 July 2024
emission line is responsible for the characteristic red light of helium–neon lasers. Although neon has some applications in plasma tubes and as a refrigerant...
32 KB (3,820 words) - 21:11, 3 August 2024
gas such as hydrogen or nitrogen to a helium–oxygen mixture. Helium–neon lasers, a type of low-powered gas laser producing a red beam, had various practical...
148 KB (16,229 words) - 20:17, 2 August 2024
metastable He(23S1). Substituting helium with other noble gases, such as neon or argon, does not lead to an enhancement of laser output. Because the excitation...
16 KB (1,886 words) - 04:37, 1 June 2024
Laser linewidth is the spectral linewidth of a laser beam. Two of the most distinctive characteristics of laser emission are spatial coherence and spectral...
33 KB (5,029 words) - 04:09, 31 July 2024
forming a Fabry–Pérot resonator. Unlike helium–neon lasers, the energy level transitions that contribute to laser action come from ions. Because of the...
7 KB (953 words) - 13:07, 27 November 2023
A chemical laser is a laser that obtains its energy from a chemical reaction. Chemical lasers can reach continuous wave output with power reaching to megawatt...
14 KB (1,738 words) - 07:23, 24 July 2023
"Reportage - Il était une fois le néon No. 402". Retrieved 2010-12-06. Claude lit the peristyle of the Grand Palais in Paris with neon tubes; this webpage includes...
33 KB (3,820 words) - 20:02, 8 February 2024