Laser-cooled mercury ion frequency standard
WebMar 9, 1998 · Laser-Cooled Mercury Ion Frequency Standard NIST Laser-Cooled Mercury Ion Frequency Standard Published March 9, 1998 Author (s) D J. Berkeland, J D. Miller, … WebApr 11, 2024 · Using laser-cooled as coolant ions, ion crystal is cooled to below 100 mK and has a coherence lifetime of over 40 s. The short-term frequency stability reached , which …
Laser-cooled mercury ion frequency standard
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WebA frequency control loop which locks the frequency of a 5MHz quartz crystal oscillator to the hyperfine transition of stored mercury ions, close to 40.5 GHz, is described. In this …
Webthat stabilizes a laser frequency to the single-ion signal and that eliminates errors due to laser frequency drift. Numerical simulations of the servo characteristics are compared to experimental data from a frequency comparison of two single-ion standards based on a transition at 688 THz in 171Yb+. Experimentally, an Webthe most recent edition of “Standard Methods for the Examination of Water and Wastewater” published jointly by the American Public Health Association, the American Water Works …
WebOver 2 mW of continuous-wave tunable 194-nm light is produced by sum-frequency mixing approximately 500 mW of 792-nm and 500 mW of 257-nm radiation in beta-barium borate (BBO). The powers in both... WebResearch on the development of the optical frequency standard based on trapped and cold Ca-40(+) with the 4s S-2(1/2)-3d D-2(5/2) clock transition at 729 nm is reported. A single calcium ion was trapped and laser cooled in the Paul trap and stay in trap for more than 15 days. The linewidth of a 729 nm laser was reduced to less than 10 Hz by locking to a …
WebThe frequency of the rf driving voltage is 1.961 MHz, its ampli- tude being usually between 150 and 300 V. The EC voltage for axial confinement is about 5–10 V. To obtain sympa- …
WebMar 9, 1998 · Laser Frequency Calibration System With Optical Frequency Comb Linked to National Standard of Frequency Seimitsu Kogaku Kaishi/Journal of the Japan Society for … btog abstract deadlineWebJul 13, 2006 · By comparison to a laser-cooled calcium optical standard, an upper limit for the fractional frequency instability of 7 x 10 (-15) is measured in 1 second of averaging-a value substantially better than that of the world's best microwave atomic clocks. btog abstract 2023WebOct 5, 2024 · We report on the development of a trapped-ion, microwave frequency standard based on the 12.6 GHz hyperfine transition in laser-cooled ytterbium-171 ions. The entire … exit 9 park and ride clifton parkWebMar 9, 1998 · Laser-Cooled Mercury Ion Frequency Standard. A stable and accurate frequency standard based on the 40.5 GHz ground-state hyperfine transition in 199Hg1 … bto fxWebSep 1, 2006 · The mercury-ion optical clock consists of a 563 nm laser that is doubled and servo-locked to a specific 282 nm electric-quadrupole or “clock” frequency transition in a … exit a bash script earlyWebion, whose resonance frequency is 1.06 1015 Hz. For the purpose of the evaluation, a second 199 Hg+ standard has been con-structed. In the cooling-laser system built for the … btofxi reviewWebBy using lasers, the kinetic energy of the ions can be cooled to millikelvin temperatures, thereby suppressing Doppler frequency shifts. Potential accuracies of frequency … btog annual conference