Frequency Measurement of an Ar+ Laser Stabilized on Narrow Lines of Molecular Iodine at 501.7 nm

Frédéric Du Burck (1) , Christophe Daussy (1) , Anne Amy-Klein (1) , Andréi N. Goncharov (1) , Olivier Lopez (1) , Christian Chardonnet (1) , Jean-Pierre Wallerand (2)

1 LPL - Laboratoire de Physique des Lasers
2 LCM - Laboratoire commun de métrologie LNE-CNAM

A spectrometer for ultra high-resolution spectroscopy of molecular iodine at wave length 501.7 nm, near the dissociation limit is described. Line shapes about 30 kHz wide (HWHM) were obtained using saturation spectroscopy in a pumped cell. The frequency of an Ar+ laser was locked to a hyperfine component of the R(26)62-0 transition and the first absolute frequency measurement of this line is reported.

Mots clés: FM spectroscopy; residual amplitude modulation; optical frequency measurement; Iodine spectroscopy

Domaines: Physique Quantique [quant-ph]

Frédéric Du Burck, Christophe Daussy, Anne Amy-Klein, Andréi N. Goncharov, Olivier Lopez, et al.. Frequency Measurement of an Ar+ Laser Stabilized on Narrow Lines of Molecular Iodine at 501.7 nm. IEEE Transactions on Instrumentation and Measurement, 2005, 54, pp.754-758. ⟨10.1109/TIM.2005.843579⟩. ⟨hal-00003428⟩