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A superconducting Fabry-Perot cavity for trapping cold molecules

机译:用于捕获冷分子的超导法布里 - 珀罗腔

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摘要

A superconducting Fabry-Perot microwave cavity for a molecular trap was designed, constructed and characterized. The cavity was designed to create intense microwave fields that are sufficient to trap cold polar molecules by the AC Stark force. By coating the mirror surfaces with a superconducting material, an unloaded quality factor of up to 1.1 x 10(6) at 24.087 GHz was achieved at a temperature of 2.24 K. The field strength of 1.06 MV m(-1) obtained for a TEM02 transverse mode with an input power of 10 W is sufficiently intense to trap ammonia molecules at a temperature of 85 mK, which is achievable by a conventional Stark molecular decelerator. We have also implemented an ion optics assembly for sensitive detection of molecules inside the microwave cavity by resonance enhanced multi-photon ionization.
机译:设计、制造并表征了一个用于分子陷阱的超导法布里-珀罗微波腔。该腔的设计目的是产生强微波场,足以通过交流斯塔克力捕获冷极性分子。通过在反射镜表面涂覆超导材料,在2.24 K的温度下,在24.087 GHz下获得了高达1.1 x 10(6)的无载品质因数。对于输入功率为10 W的TEM02横模,获得的场强为1.06 MV m(-1),足以在85 mK的温度下捕获氨分子,这可以通过传统的斯塔克分子减速器实现。我们还实现了一个离子光学组件,用于通过共振增强多光子电离灵敏检测微波腔内的分子。

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