Doppler-free two-photon absorption spectroscopy with a frequency-modulated dye laser

S. R. Bramwell, A. I. Ferguson, D. M. Kane*

*Corresponding author for this work

Research output: Contribution to journalArticle

6 Citations (Scopus)


A new method of Doppler-free two-photon spectroscopy has been developed in which a frequency-modulated (FM) dye laser is used to perform high-resolution spectroscopy. This provides an ideal method of locking a broadband FM laser to a narrow atomic or molecular reference line, a necessary step in using the FM laser for optical-frequency metrology. The method may also be used to test how closely the FM dye laser approaches a pure FM oscillation.

Original languageEnglish
Pages (from-to)666-668
Number of pages3
JournalOptics Letters
Issue number9
Publication statusPublished - 1987
Externally publishedYes


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