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  • 苑震生 ( 教授 )

    的个人主页 http://faculty.ustc.edu.cn/yuanzs/zh_CN/index.htm

  •   教授   博士生导师
  • 主要任职:Professor of Physics
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Robust site-resolved addressing via dynamically tracking the phase of optical lattices
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发表刊物:Optics Letters
摘要:Single-site-resolved addressing offers an unprecedentedcapability of manipulating atoms in optical lattices. Wedemonstrate a robust site-resolved addressing by locking theposition of the addressing beam to the optical lattice phase.The addressing beam is modulated by a digital micromirrordevice (DMD) integrated into a quantum gas microscope(QGM). A typical experiment with ultracold atoms takesseveral hours to collect hundreds of samples by repeatingthe sequence of programmed operations, whose durationis 40 seconds. During the collection, the phase of opticallattices can drift over a few lattice sites. According to thephases of the lattice obtained from the current experimen-tal realizations, we correct the addressing beam positionfor the subsequent realization by shifting the pattern of theactivated micromirrors on the DMD. This feedback loopis compiled to an application with a graphical user inter-face (GUI) for relevant devices, which is synchronized tothe experimental sequence. The long-term (5 hours) posi-tion deviation between the pointing of the addressing beamand the lattice phase is suppressed to a 0.02(2)/0.02(2) latticespacing in the X/Ydirection, verifying a 10-fold reductionin comparison to that without feedback. With the help ofphase-locking, the success rate of site-resolved addressingis improved substantially from 60(7)% to 95(2)%.
合写作者:Yong-Guang Zheng et al.
论文类型:期刊论文
学科门类:理学
文献类型:J
卷号:47
期号:16
页面范围:4239–4242
是否译文:否
发表时间:2022-12-18
收录刊物:SCI
发布期刊链接:https://opg.optica.org/ol/fulltext.cfm?uri=ol-47-16-4239&id=491991
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