Progress of the Laser-based Experiment OSQAR

Miroslav Sulc (1) , Pierre Pugnat (2) , Rafik Ballou (3) , Guy Deferne (4) , Lionel Duvillaret (5) , Michael Finger Jr. (6) , Michael Finger (6) , Jan Hošek (7) , Thomas Husek (6) , Rémy Jost (8) , Miroslav Kral (7) , S. Kunc (1) , Karolina Macuchova (7) , Krzysztof A. Meissner (9) , Jérôme Morville (10, 11) , Daniele Romanini (8) , Matthias Schott (4) , Andrzej Siemko (4) , Miloslav Slunecka (6) , Guy Vitrant (5) , Jozef Zicha (7)

1 Technical University of Liberec
2 LNCMI-G - Laboratoire national des champs magnétiques intenses - Grenoble
3 NEEL - MagSup - Magnétisme et Supraconductivité
4 CERN - European Organization for Nuclear Research
5 IMEP-LAHC - Institut de Microélectronique, Electromagnétisme et Photonique - Laboratoire d'Hyperfréquences et Caractérisation
6 UK - Univerzita Karlova [Praha, Česká republika] = Charles University [Prague, Czech Republic]
7 CTU - Czech Technical University in Prague
8 LSP - Laboratoire de Spectrométrie Physique
9 Institute of Theoretical Physics [Warsaw]
10 LASIM - Laboratoire de Spectrométrie Ionique et Moléculaire
11 ILM - Institut Lumière Matière [Villeurbanne]

OSQAR experiment at CERN is based on two laser methods for search of axions and scalar particles. The light shining through the wall experiment has been using two LHC dipole magnets with an optical barrier, argon laser, and cooled 2D CCD detector for the measuring of expected regenerated photons. The second method wants to measure the Vacuum Magnetic Birefringence. An optical set-up with electro-optical modulator has been proposed, validated and subsequently improved in collaborating institutes. Cotton-Muton effect in nitrogen was measured by this method. Prototype of a one-meter long laser cavity was developed for this experiment.

Domaines: Physique Générale [physics.gen-ph]

Miroslav Sulc, Pierre Pugnat, Rafik Ballou, Guy Deferne, Lionel Duvillaret, et al.. Progress of the Laser-based Experiment OSQAR. 9th PatrasWorkshop on Axions, WIMPs and WISPs 2013, Jun 2013, Mainz, Germany. pp.67, ⟨10.3204/DESY-PROC-2013-04/sulc_miroslav⟩. ⟨hal-00963931⟩