9 July 2007 Ionization detection scheme for 1s-2s spectroscopy in atomic hydrogen
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We purpose a new method for 1s-2s spectroscopy of atomic hydrogen. Our method is based on a new detection scheme, utilizing a three-photon ionization to obtain a signal correspondent to the excitation of atoms into 2s state. We report about assembling and test of a proton detection system for this measurement. To measure a second order Doppler shift we purpose a delayed detection scheme. Using this method we plan to reduce the uncertainty of the absolute frequency measurement to the 10-15 domain.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
A. Matveev, A. Matveev, N. Kolachevsky, N. Kolachevsky, J. Alnis, J. Alnis, T. W. Hänsch, T. W. Hänsch, } "Ionization detection scheme for 1s-2s spectroscopy in atomic hydrogen", Proc. SPIE 6727, ICONO 2007: Nonlinear Laser Spectroscopy and High-Precision Measurements; and Fundamentals of Laser Chemistry and Biophotonics, 67270K (9 July 2007); doi: 10.1117/12.752279; https://doi.org/10.1117/12.752279


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