Optical characterisation of micro-fabricated Fresnel zone plates for atomic waveguides.
Optical characterisation of micro-fabricated Fresnel zone plates for atomic waveguides.
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DOI：
10.1364/oe.388897
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发表时间：
2020-02
期刊：
影响因子：
3.8
通讯作者：
V. Henderson;M. H. Johnson;Y. B. Kale;P. Griffin;E. Riis;A. Arnold
中科院分区：
文献类型：
--
作者：
V. Henderson;M. H. Johnson;Y. B. Kale;P. Griffin;E. Riis;A. Arnold
我们对设计用于引导冷原子的菲涅耳波带片(FZP)进行光学评估。对FZP产生的各种环图案进行成像，在环的最亮部分相对于陷阱深度的平均均方根误差为3%。这一残留物归因于成像系统、入射光束形状和FZP制造公差。通过实验和数值模拟给出了势的轴向传播，说明了原子在不需要光片的情况下进行引导的前景。
We optically assess Fresnel zone plates (FZPs) that are designed to guide cold atoms. Imaging of various ring patterns produced by the FZPs gives an average RMS error in the brightest part of the ring of 3% with respect to trap depth. This residue is attributed to the imaging system, incident beam shape and FZP manufacturing tolerances. Axial propagation of the potentials is presented experimentally and through numerical simulations, illustrating prospects for atom guiding without requiring light sheets.