Conversion of the frequency of He–Ne laser radiation fromλ=1.15μto 377.6 nm in thallium vapor
Vasily G. Arkhipkin, V. A. Kiyashko, A. K. Popov +1 more
Infrared helium-neon laser radiation ( λ = 1.15 μ ) was transformed to the ultraviolet range ( λ = 377.6 nm) in thallium vapor by parametric mixing with radiation from a rhodamine 6 G dye laser ( λ = 568.6 nm). Use was made of a two-photon resonance of the pump (dye laser) radiation with the 6P 1/2 –7P 3/2 forbidden transition and of the proximity of the frequency of the radiation being temsformed to the frequency of the 7P 3/2 –7S 1/2 transition.
Soviet Journal of Quantum Electronics•Jan 31, 1980•1 citation