Evaluation of the blackbody radiation shift uncertainty for NRC's strontium ion clock

Autor: Alan A. Madej, Pierre Dubé, Bin Jian

Publikováno v: 2016 IEEE International Frequency Control Symposium (IFCS).

We present recent progress on the evaluation of the blackbody radiation shift uncertainty for the strontium ion clock at the National Research Council Canada. The thermal radiation field of the ion trap components will be characterized by utilizing a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::eb2cced449b13dd56d7c7d4ea8e50329
https://doi.org/10.1109/fcs.2016.7546713

Absolute optical frequency measurement of saturated absorption lines in Rb near 422 nm

Autor: Pierre Dubé, John E. Bernard, Alan A. Madej, Andrew D. Shiner

Publikováno v: Applied Physics B. 89:595-601

We present absolute optical frequency measurements of the 5s2 S 1/2–6p2 P 1/2 hyperfine resolved transitions in both 85Rb and 87Rb near 422 nm. The frequency of each transition was measured by stabilizing a narrow-linewidth extended cavity diode la

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e19c6bfe867d4099d6853c0f55142af7
https://doi.org/10.1007/s00340-007-2836-y

The CCL-K11 ongoing key comparison. Final report for the year 2012

Autor: Jack A. Stone, Martin Zelan, Michael Matus, Helge Karlsson, Alan A. Madej, Antti Lassila, John E. Bernard, Oelof Kruger, Lennart Robertsson

Publikováno v: Matus, M, Karlsson, H, Stone, J, Krüger, O, Zelan, M, Madej, A A, Bernard, J E, Lassila, A & Robertsson, L 2015, ' The CCL-K11 ongoing key comparison. Final report for the year 2012 ', Metrologia, vol. 52, no. Technical Supplement, 04005 . https://doi.org/10.1088/0026-1394/52/1A/04005

Lasers from ten national metrology institutes (NMIs) plus the institutes responsible for Chinese Taipei and Hong Kong, China, were compared as part of the CCL-K11 ongoing key comparison, initiated by the 13th meeting of the Comit? Consultative des Lo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a20fc0dcd55559c82fefc69602edd105
https://cris.vtt.fi/en/publications/0589051a-df10-4b19-8e01-8528ae2e3d58

Long-term absolute frequency measurements of 633 nm iodine-stabilized laser standards at NRC and demonstration of high reproducibility of such devices in international frequency measurements

Autor: Massimo Zucco, L. S. Ma, Alan A. Madej, John E. Bernard, Lennart Robertsson, Robert S. Windeler

Publikováno v: Metrologia. 41:152-160

The absolute optical frequency of a 633 nm, I2-stabilized He–Ne laser system is measured with a femtosecond laser frequency comb. Results over a three-year period using chain- and comb-based measurements yield an operating frequency of ff = (473 61

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::78c98d03126e5cfd958f31cfa666510a
https://doi.org/10.1088/0026-1394/41/3/007

Iodine stabilized dye laser system for frequency measurements in the visible and near ir region of the spectrum

Autor: M. Ball, Alan A. Madej

Publikováno v: IEEE Transactions on Instrumentation and Measurement. 52:272-276

An iodine stabilized dye laser system is described that provides traceable measurement of reference frequencies in the visible spectrum from 540 to 670 nm and in the near infrared at 1.15 /spl mu/m. The system allows calibration of the widely used 63

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3bc485886208f7c164e419a4ee01f754
https://doi.org/10.1109/tim.2003.811662