This article is cited in 36 papers

REVIEWS OF TOPICAL PROBLEMS

Optical frequency standards

N. G. Basov, V. S. Letokhov

P. N. Lebedev Physical Institute, the USSR Academy of Sciences, Moscow

PACS: 06.30.Ft, 06.20.fb

DOI: 10.3367/UFNr.0096.196812a.0585

 English version: Physics–Uspekhi, 1969, 11:6, 855–880