Interference of laser-induced resonances in the continuous structures of a helium atomстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:Coherent effects in the interference of overlapping laser-induced resonances in helium atoms are considered. The simultaneous action of single-mode radiation of the 294-nm second harmonic of a cw dye laser and a 1064-nm Nd:YAG laser on helium atoms provides the overlap of two resonances induced by transitions from the 1s2s(1)S and 1s4s(1)S helium levels. The shape of the overlapping laser-induced resonances in the rotating-wave approximation is described by analytic expressions, which depend on the laser radiation intensities and the ratio of laser frequencies.