Precision measurement of the hydrogen and deuterium 1S-2S transition with a phase locked laser frequency chain

Author

Konig, W. ; Prevedelli, M. ; Onae, A. ; Andreae, T. ; Hansch, Theodor W.

Author_Institution

Max-Planck-Inst. fur Quantenoptik, Garching bei Munchen, Germany

fYear

1994

fDate

June 27 1994-July 1 1994

Firstpage

155

Lastpage

156

Abstract

To perform a fully phase coherent measurement of the hydrogen and deuterium 1S-2S frequency we have extended our laser frequency chain by four optical divider stages that are successively bisecting a remaining difference frequency of 1.1 THz down to 66.2 GHz for hydrogen (60.9 GHz for deuterium). The divided frequency can be counted directly by harmonic mixing on a Schottky-diode. As a result we expect an improved value for the Rydberg-constant and order of magnitude improvements in a measurement of the hydrogen-deuterium isotope-shift.<>

Keywords

constants; deuterium; frequency measurement; hydrogen neutral atoms; isotope shifts; laser beam applications; laser frequency stability; laser mode locking; measurement standards; multiwave mixing; optical harmonic generation; 1.1 THz to 66.2 GHz; 1S-2S transition; D; H; Rydberg-constant; Schottky-diode; harmonic mixing; isotope-shift; laser frequency chain; optical dividers; phase locked laser frequency chain; precision measurement; Deuterium; Diode lasers; Frequency conversion; Hydrogen; Laser transitions; Nonlinear optics; Optical frequency conversion; Optical harmonic generation; Optical mixing; Phase measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements, 1994. Digest., 1994 Conference on

Conference_Location

Boulder, CO, USA

Print_ISBN

0-7803-1984-2

Type

conf

DOI

10.1109/CPEM.1994.333404

Filename

333404