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Journal Article

Resonant laser power build-up in ALPS—A “light shining through a wall” experiment

MPS-Authors
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Meier,  Tobias
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons40511

Willke,  Benno
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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0905.4159v1.pdf
(Preprint), 2MB

NucInst612_83.pdf
(Any fulltext), 947KB

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Citation

Ehret, K., Frede, M., Ghazaryan, S., Hildebrandt, M., Knabbe, E.-A., Kracht, D., et al. (2009). Resonant laser power build-up in ALPS—A “light shining through a wall” experiment. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 612(1), 83-96. doi:10.1016/j.nima.2009.10.102.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0012-9D10-2
Abstract
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.