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首页> 外文期刊>Optics Letters >Continuous-wave, single-frequency 229 nm laser source for laser cooling of cadmium atoms
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Continuous-wave, single-frequency 229 nm laser source for laser cooling of cadmium atoms

机译:连续波单频229 nm激光源,用于激光冷却镉原子

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Continuous-wave output at 229 nm for the application of laser cooling of Cd atoms was generated by the fourth harmonic using two successive second-harmonic generation stages. Employing a single-frequency optically pumped semiconductor laser as a fundamental source, 0.56 W of output at 229 nm was observed with a 10-mm long, Brewstercut BBO crystal in an external cavity with 1.62 W of 458 nm input. Conversion efficiency from 458 nm to 229 nm was more than 34%. By applying a tapered amplifier (TA) as a fundamental source, we demonstrated magneto-optical trapping of all stable Cd isotopes including isotopes Cd-111 and Cd-113, which are applicable to optical lattice clocks. (C) 2016 Optical Society of America
机译:通过使用两个连续的二次谐波产生级的四次谐波,产生了用于激光冷却Cd原子的229 nm连续波输出。使用单频光泵浦半导体激光器作为基本光源,在外腔中以10mm长的Brewstercut BBO晶体观察到0.56 W在229 nm处的输出,输入为458 nm,1.62W。从458 nm到229 nm的转换效率超过34%。通过应用锥形放大器(TA)作为基本信号源,我们演示了所有稳定Cd同位素的磁光俘获,包括适用于光学晶格时钟的同位素Cd-111和Cd-113。 (C)2016美国眼镜学会

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