1 September 2010 Comparative study of laser-induced metastability-exchange optical pumping of 3He atoms through 23S1-33PJ transition at 389 nm with 23S1-23PJ transition at 1083 nm
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Abstract
We developed a metastability-exchange optical pumping technique for metastable triplet helium (3He) atoms utilizing the 23S1-33PJ transition at 389 nm with radiation generated by a frequency-doubled cw Ti:Sapphire laser and compared the results with our results obtained utilizing the 23S1-23PJ transition at 1083 nm with a diode laser. We optically measured the nuclear polarization of 3He in the hollow cathode discharge cell by monitoring the absorption of a weak longitudinal probe laser at 1083 nm. This provided, for the first time, nuclear polarization utilizing the 23S1-33PJ transition at 389 nm.
© (2010) Society of Photo-Optical Instrumentation Engineers (SPIE)
Shingo Maeda, Yutaka Tabata, Hiroki Yamada, Hiroshi Kumagai, "Comparative study of laser-induced metastability-exchange optical pumping of 3He atoms through 23S1-33PJ transition at 389 nm with 23S1-23PJ transition at 1083 nm," Optical Engineering 49(9), 091014 (1 September 2010). https://doi.org/10.1117/1.3484945 . Submission:
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