Now showing items 121-122 of 122

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    Visible transitions in Ag-like and Cd-like lanthanide ions 

    Murata, Shunichi; Nakajima, Takayuki; Safronova, Marianna S.; Safronova, Ulyana I.; Nakamura, Nobuyuki (2017)
    We present visible spectra of Ag-like (4d(10)4f) and Cd-like (4d(10)4f(2)) ions of Ho (atomic number Z = 67), Er (68), and Tm (69) observed with a compact electron beam ion trap. For Ag-like ions, prominent emission ...
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    Zeptonewton force sensing with nanospheres in an optical lattice 

    Ranjit, Gambhir; Cunningham, Mark S.; Casey, Kirsten; Geraci, Andrew A. (2016)
    Optically trapped nanospheres in high vacuum experience little friction and hence are promising for ultrasensitive force detection. Here we demonstrate measurement times exceeding 10(5) s and zeptonewton force sensitivity ...