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Items: 1 to 20 of 126

1.

Measurement of the electric quadrupole moment of the 4d2D5/2 level in 88Sr+.

Barwood GP, Margolis HS, Huang G, Gill P, Klein HA.

Phys Rev Lett. 2004 Sep 24;93(13):133001. Epub 2004 Sep 22.

PMID:
15524716
2.

Hertz-level measurement of the optical clock frequency in a single 88Sr+ ion.

Margolis HS, Barwood GP, Huang G, Klein HA, Lea SN, Szymaniec K, Gill P.

Science. 2004 Nov 19;306(5700):1355-8.

3.

Electric quadrupole shift cancellation in single-ion optical frequency standards.

Dubé P, Madej AA, Bernard JE, Marmet L, Boulanger JS, Cundy S.

Phys Rev Lett. 2005 Jul 15;95(3):033001. Epub 2005 Jul 12.

PMID:
16090738
4.

High-accuracy optical clock based on the octupole transition in 171Yb+.

Huntemann N, Okhapkin M, Lipphardt B, Weyers S, Tamm C, Peik E.

Phys Rev Lett. 2012 Mar 2;108(9):090801. Epub 2012 Feb 29.

PMID:
22463621
5.

88Sr+ 445-THz single-ion reference at the 10(-17) level via control and cancellation of systematic uncertainties and its measurement against the SI second.

Madej AA, Dubé P, Zhou Z, Bernard JE, Gertsvolf M.

Phys Rev Lett. 2012 Nov 16;109(20):203002. Epub 2012 Nov 12.

PMID:
23215481
6.
7.

Direct comparison of two cold-atom-based optical frequency standards by using a femtosecond-laser comb.

Vogel KR, Diddams SA, Oates CW, Curtis EA, Rafac RJ, Itano WM, Bergquist JC, Fox RW, Lee WD, Wells JS, Hollberg L.

Opt Lett. 2001 Jan 15;26(2):102-4.

PMID:
18033520
8.

Electric quadrupole moments of the D states of alkaline-earth-metal ions.

Sur C, Latha KV, Sahoo BK, Chaudhuri RK, Das BP, Mukherjee D.

Phys Rev Lett. 2006 May 19;96(19):193001. Epub 2006 May 18.

PMID:
16803101
9.

High-accuracy measurement of the differential scalar polarizability of a 88Sr+ clock using the time-dilation effect.

Dubé P, Madej AA, Tibbo M, Bernard JE.

Phys Rev Lett. 2014 May 2;112(17):173002. Epub 2014 Apr 29.

PMID:
24836242
10.

Sub-dekahertz ultraviolet spectroscopy of 199Hg+

Rafac RJ, Young BC, Beall JA, Itano WM, Wineland DJ, Bergquist JC.

Phys Rev Lett. 2000 Sep 18;85(12):2462-5.

PMID:
10978082
11.

Absolute frequency measurement of the 40Ca+ 4s(2)S_(1/2)-3d(2)D_(5/2) clock transition.

Chwalla M, Benhelm J, Kim K, Kirchmair G, Monz T, Riebe M, Schindler P, Villar AS, Hänsel W, Roos CF, Blatt R, Abgrall M, Santarelli G, Rovera GD, Laurent P.

Phys Rev Lett. 2009 Jan 16;102(2):023002. Epub 2009 Jan 13.

PMID:
19257267
12.

Absolute frequency measurement of the 435.5-nm (171)Yb+-clock transition with a Kerr-lens mode-locked femtosecond laser.

Stenger J, Tamm C, Haverkamp N, Weyers S, Telle HR.

Opt Lett. 2001 Oct 15;26(20):1589-91.

PMID:
18049672
13.

Precision frequency measurement of visible intercombination lines of strontium.

Ferrari G, Cancio P, Drullinger R, Giusfredi G, Poli N, Prevedelli M, Toninelli C, Tino GM.

Phys Rev Lett. 2003 Dec 12;91(24):243002. Epub 2003 Dec 10.

PMID:
14683113
14.

Measurement of the absolute energy level and hyperfine structure of the 87Rb 4D5/2 state.

Lee WK, Seb Moon H, Suhng Suh H.

Opt Lett. 2007 Oct 1;32(19):2810-2. Erratum in: Opt Lett. 2015 May 1;40(9):2111.

PMID:
17909581
15.

Frequency Comparison of [Formula: see text] Ion Optical Clocks at PTB and NPL via GPS PPP.

Leute J, Huntemann N, Lipphardt B, Tamm C, Nisbet-Jones PB, King SA, Godun RM, Jones JM, Margolis HS, Whibberley PB, Wallin A, Merimaa M, Gill P, Peik E.

IEEE Trans Ultrason Ferroelectr Freq Control. 2016 Jul;63(7):981-5. doi: 10.1109/TUFFC.2016.2524988. Epub 2016 Feb 3.

PMID:
26863657
16.

Progress at NIST toward absolute frequency standards using stored ions.

Wineland DJ, Bergquist JC, Bollinger JJ, Itano WM, Heinzen DJ, Gilbert SL, Manney CH, Raizen MG.

IEEE Trans Ultrason Ferroelectr Freq Control. 1990;37(6):515-23.

PMID:
18285072
17.

Error occurred: cannot get document summary

PMID:
27551639

18.

Frequency measurement of the 2S(1/2)-2D(3/2) electric quadrupole transition in a single 171Yb+ ion.

Webster S, Godun R, King S, Huang G, Walton B, Tsatourian V, Margolis H, Lea S, Gill P.

IEEE Trans Ultrason Ferroelectr Freq Control. 2010 Mar;57(3):592-9. doi: 10.1109/TUFFC.2010.1452.

PMID:
20211775
19.

Measurement of the (199)Hg+ 5d9 6s2 (2)D(5/2) electric quadrupole moment and a constraint on the quadrupole shift.

Oskay WH, Itano WM, Bergquist JC.

Phys Rev Lett. 2005 Apr 29;94(16):163001. Epub 2005 Apr 26.

PMID:
15904220
20.

Absolute frequency measurement of the In+ clock transition with a mode-locked laser.

von Zanthier J, Becker T, Eichenseer M, Nevsky AY, Schwedes C, Peik E, Walther H, Holzwarth R, Reichert J, Udem T, Hänsch TW, Pokasov PV, Skvortsov MN, Bagayev SN.

Opt Lett. 2000 Dec 1;25(23):1729-31.

PMID:
18066328
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