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Design and Performance of the ALPS II Regeneration Cavity
Todd Kozlowski, Li-Wei Wei, Aaron D. Spector +12
The Regeneration Cavity (RC) is a critical component of the Any Light Particle Search II (ALPS II) experiment. It increases the signal from possible axions and axion-like particles…
Polarimetry for measuring the vacuum magnetic birefringence with quasi-static fields: a systematics study for the VMB@CERN experiment
G. Zavattini, F. Della Valle, A. M Soflau +9
We present an experimental systematics study of the polarimetric method for measuring the vacuum magnetic birefringence based on a pair of rotating half-wave plates. The presence o…
The PVLAS experiment: a 25 year effort to measure vacuum magnetic birefringence
A. Ejlli, F. Della Valle, U. Gastaldi +4
This paper describes the 25 year effort to measure vacuum magnetic birefringence and dichroism with the PVLAS experiment. The experiment went through two main phases: the first usi…
Polarisation dynamics of a birefringent Fabry-Perot cavity
Aldo Ejlli, Federico Della Valle, Guido Zavattini
Optical Fabry-Perot cavities always show a non-degeneracy of two orthogonal polarisation states. This is due to the unavoidable birefringence of dielectric mirrors whose effects ar…
A polarisation modulation scheme for measuring vacuum magnetic birefringence with static fields
G. Zavattini, F. Della Valle, A. Ejlli +1
A novel polarisation modulation scheme for polarimeters based on Fabry-Perot cavities is presented. The application to the proposed HERA-X experiment aiming to measuring the magnet…
The PVLAS experiment: measuring vacuum magnetic birefringence and dichroism with a birefringent Fabry-Perot cavity
F. Della Valle, E. Milotti, A. Ejlli +5
Vacuum magnetic birefringence was predicted long time ago and is still lacking a direct experimental confirmation. Several experimental efforts are striving to reach this goal, and…