Resonant laser power build-up in ALPS—A “light shining through a wall” experiment
✍ Scribed by Klaus Ehret; Maik Frede; Samvel Ghazaryan; Matthias Hildebrandt; Ernst-Axel Knabbe; Dietmar Kracht; Axel Lindner; Jenny List; Tobias Meier; Niels Meyer; Dieter Notz; Javier Redondo; Andreas Ringwald; Günter Wiedemann; Benno Willke
- Book ID
- 103858163
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 946 KB
- Volume
- 612
- Category
- Article
- ISSN
- 0168-9002
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✦ Synopsis
The ALPS Collaboration runs a ''light shining through a wall'' (LSW) experiment to search for photon oscillations into ''weakly interacting sub-eV particles'' (WISPs) inside of a superconducting HERA dipole magnet at the site of DESY. In this paper we report on the first successful integration of a large-scale optical resonant cavity to boost the available power for WISP production in this type of experiments.
The key elements are a frequency tunable narrow line-width continuous wave laser acting as the primary light source and an electronic feed-back control loop to stabilize the power build-up. We describe and characterize our apparatus and demonstrate the data analysis procedures on the basis of a brief exemplary run.