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Continuous-wave measurement of the hydrogen 1S-2S transition frequency.

Abstract:

We have measured the 1S-2S transition frequency in atomic hydrogen with a precision of 7 parts in 1010 by continuous-wave Doppler-free two-photon spectroscopy. We employ cavity-enhanced multimilliwatt radiation near 243 nm produced by sum-frequency generation, and we observe the 1S-2S transition in a low-pressure hydrogen-helium cell with a resolution of 3 parts in 109. For a frequency comparison we detect an optical heterodyne signal at the difference frequency between the 243-nm light used ...

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Publication status:
Published

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Publisher copy:
10.1103/physreva.39.4591

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Atomic & Laser Physics
Role:
Author
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Journal:
Physical review. A
Volume:
39
Issue:
9
Pages:
4591-4598
Publication date:
1989-05-01
DOI:
ISSN:
1050-2947
Source identifiers:
20761
Language:
English
Pubs id:
pubs:20761
UUID:
uuid:14132d14-b19c-4e66-b18f-8b972f81b8a3
Local pid:
pubs:20761
Deposit date:
2012-12-19

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