Abstract
Laser action has been observed due to a Na2 molecule dimer system in a sodium high pressure lamp. The argon-ion laser line at 4880 Å which is very close to the molecular transition\(B^1 \prod _u \to X^1 \Sigma _g^1 \) at a wavelength of 4879.14 Å was amplified by passing through a small plasma layer near the wall.
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References
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Bauer, A., Murthy, K.S.S. Laser action of Na2 molecules in a sodium high pressure discharge lamp. Appl. Phys. 12, 391–393 (1977). https://doi.org/10.1007/BF00886043
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DOI: https://doi.org/10.1007/BF00886043