Dense grid of reference I2-lines for optical frequency calibration in the range 571-655 nm

W. Ubachs*, I. Velchev, S. C. Xu, R. van Dierendonck, W. Hogervorst

*Corresponding author for this work

Research output: Chapter in Book / Report / Conference proceedingConference contributionAcademicpeer-review

Abstract

A dense grid of high precision lines in the hyperfine structure of the B-X system of I2 is presented. An actively stabilized etalon, locked to the output of a 3He22Ne laser, which is itself locked to a 129I2 hyperfine resonance, was used to measure the absolute frequency of hyperfine components of nearly 600 lines in the range 571-655 nm. The precision obtained by interpolation methods is 1 MHz. From a calculation of the hyperfine structure, centers-of-gravity of the rotational structure were determined, which were incorporated in fits to the rotational structure of 21 bands in the B-X system.

Original languageEnglish
Title of host publicationIQEC, International Quantum Electronics Conference Proceedings
PublisherIEEE
Pages92
Number of pages1
Publication statusPublished - 2000
Event2000 International Quantum Electronics Conference (IQEC 2000) - Nice, France
Duration: 10 Sep 200015 Sep 2000

Conference

Conference2000 International Quantum Electronics Conference (IQEC 2000)
CityNice, France
Period10/09/0015/09/00

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