Helen Margolis
Helen Margolis
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Frequency Ratio of Two Optical Clock Transitions in and Constraints on the Time Variation of Fundamental Constants
RM Godun, PBR Nisbet-Jones, JM Jones, SA King, LAM Johnson, ...
Physical review letters 113 (21), 210801, 2014
Geodesy and metrology with a transportable optical clock
J Grotti, S Koller, S Vogt, S Häfner, U Sterr, C Lisdat, H Denker, C Voigt, ...
Nature Physics 14 (5), 437-441, 2018
Hertz-level measurement of the optical clock frequency in a single 88Sr+ ion
HS Margolis, GP Barwood, G Huang, HA Klein, SN Lea, K Szymaniec, ...
Science 306 (5700), 1355-1358, 2004
The CODATA 2017 values of h, e, k, and NA for the revision of the SI
DB Newell, F Cabiati, J Fischer, K Fujii, SG Karshenboim, HS Margolis, ...
Metrologia 55 (1), L13, 2018
Test of special relativity using a fiber network of optical clocks
P Delva, J Lodewyck, S Bilicki, E Bookjans, G Vallet, R Le Targat, ...
Physical review letters 118 (22), 221102, 2017
Einstein Gravity Explorer–a medium-class fundamental physics mission
S Schiller, GM Tino, P Gill, C Salomon, U Sterr, E Peik, A Nevsky, A Görlitz, ...
Experimental astronomy 23, 573-610, 2009
High-resolution microwave frequency transfer over an 86-km-long optical fiber network using a mode-locked laser
G Marra, R Slavík, HS Margolis, SN Lea, P Petropoulos, DJ Richardson, ...
Optics letters 36 (4), 511-513, 2011
Measurement of the Electric Quadrupole Moment of the Level in
GP Barwood, HS Margolis, G Huang, P Gill, HA Klein
Physical review letters 93 (13), 133001, 2004
Agreement between two optical clocks to 4 parts in 10
GP Barwood, G Huang, HA Klein, LAM Johnson, SA King, HS Margolis, ...
Physical Review A 89 (5), 050501, 2014
Absolute frequency measurement of the 674-nm clock transition using a femtosecond optical frequency comb
HS Margolis, G Huang, GP Barwood, SN Lea, HA Klein, WRC Rowley, ...
Physical Review A 67 (3), 032501, 2003
Search for transient variations of the fine structure constant and dark matter using fiber-linked optical atomic clocks
BM Roberts, P Delva, A Al-Masoudi, A Amy-Klein, C Baerentsen, ...
New Journal of Physics 22 (9), 093010, 2020
Geodetic methods to determine the relativistic redshift at the level of 10 in the context of international timescales: a review and practical results
H Denker, L Timmen, C Voigt, S Weyers, E Peik, HS Margolis, P Delva, ...
Journal of Geodesy 92, 487-516, 2018
The Oxford electron‐beam ion trap: A device for spectroscopy of highly charged ions
JD Silver, AJ Varney, HS Margolis, PEG Baird, IP Grant, PD Groves, ...
Review of scientific instruments 65 (4), 1072-1074, 1994
Dissemination of an optical frequency comb over fiber with 3 × 10−18 fractional accuracy
G Marra, HS Margolis, DJ Richardson
Optics express 20 (2), 1775-1782, 2012
Absolute frequency measurement of the 2S1/2–2F7/2 electric octupole transition in a single ion of 171Yb+ with 10− 15 fractional uncertainty
SA King, RM Godun, SA Webster, HS Margolis, LAM Johnson, ...
New Journal of Physics 14 (1), 013045, 2012
High-stability microwave frequency transfer by propagation of an optical frequency comb over 50 km of optical fiber
G Marra, HS Margolis, SN Lea, P Gill
Optics letters 35 (7), 1025-1027, 2010
Frequency measurement of the electric octupole transition in a single ion
K Hosaka, SA Webster, A Stannard, BR Walton, HS Margolis, P Gill
Physical Review A 79 (3), 033403, 2009
Trapped ion optical frequency standards
P Gill, GP Barwood, HA Klein, G Huang, SA Webster, PJ Blythe, K Hosaka, ...
Measurement Science and Technology 14 (8), 1174, 2003
Frequency metrology and clocks
HS Margolis
Journal of Physics B: Atomic, Molecular and Optical Physics 42 (15), 154017, 2009
High-accuracy frequency atlas of 13C2H2 in the 1.5 μm region
CS Edwards, HS Margolis, GP Barwood, SN Lea, P Gill, WRC Rowley
Applied Physics B 80, 977-983, 2005
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