Absolute frequency measurement of the7s2 1S0–7s7p 1P1transition inRa225
نویسندگان
چکیده
منابع مشابه
Frequency-comb-referenced two-wavelength source for absolute distance measurement.
We propose a new tunable laser source concept for multiple-wavelength interferometry, offering an unprecedented large choice of synthetic wavelengths with a relative uncertainty better than 10(-11) in vacuum. Two lasers are frequency stabilized over a wide range of frequency intervals defined by the frequency comb generated by a mode-locked fiber laser. In addition, we present experimental resu...
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1 Absolute frequency measurement of Mid Infrared secondary frequency standard at BNM-LPTF G. D. Rovera, , Member, IEEE and O. Acef Abstract|An absolute frequency measurement of a CO2=OsO4 secondary frequency standard, operating in the mid infrared, is reported. A brief description of the measurement chain linking this standard to a hydrogen maser evidences the critical points. The measured freq...
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In an interferometer which uses a reference surface, the measured surface heights correspond to the difference between the test and reference surfaces. To accurately determine the rms roughness of supersmooth surfaces, the effects of the reference surface roughness need to be removed. One technique for doing this involves averaging a number of uncorrelated measurements of a mirror to generate a...
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ژورنال
عنوان ژورنال: Physical Review A
سال: 2014
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.90.040501