MEASUREMENT OF THE ABSOLUTE FREQUENCY OF THE METHANE E-LINE AT 88 THZ

Authors
ERING PS TYURIKOV DA KRAMER G LIPPHARDT B
Citation
Ps. Ering et al., MEASUREMENT OF THE ABSOLUTE FREQUENCY OF THE METHANE E-LINE AT 88 THZ, Optics communications, 151(4-6), 1998, pp. 229-234
Citations number
11
Categorie Soggetti
Optics
Journal title
Optics communications → ACNP
ISSN journal
00304018
Volume
151
Issue
4-6
Year of publication
1998
Pages
229 - 234
Database
ISI
SICI code
0030-4018(1998)151:4-6<229:MOTAFO>2.0.ZU;2-Y
Abstract
We report an absolute frequency measurement of the E-line of CH4 at 88 THz interrogated by a Zeeman-tuned 3.39 mu m He-Ne laser using a phas e-coherent frequency measurement chain linking to a Cs-clock. We find a value of v(E) = 88 373 149 028 553 +/- 200 Hz increasing the accurac y of the optical frequency of this reference substantially over previo us measurements. (C) 1998 Elsevier Science B.V. All rights reserved.