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Multi-line frequency up-conversions are realized in Cs vapor using 718.8nm pumping laser resonating with the two-photon transition 62S1/2→82D5/2 of Cs atom. The pumping beam is converted into a beam including wavelengths of 361.2, 387.7, 455.7 and 621.5nm. Experiments with collimated and focused pumping configurations are carried out and compared. Spectrum peak at 361.2nm is strongest under collimated...
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