Speaker
Dr
Giuseppe Messineo
(University of Florida)
Description
The ALPS II experiment searches for axion-like particles (ALPs) using the “light shining through a wall” technique. The collaboration is currently developing two different detection methods both targeting sensitivities to photon levels as low as a few photons per week. One approach, based on photon counting, uses a Transition Edge Sensor while the other involves heterodyne interferometry.
Heterodyne detection takes advantage of the coherent nature of the regenerated photon signal. However, it also relies on the ability to track precisely the phase of the expected signal with a precision better than 0.1 cycles over integration times of several weeks.
I will report on the design and measurements of the planned heterodyne optical setup.
Primary author
Dr
Giuseppe Messineo
(University of Florida)
Co-authors
Dr
Ayman Hallal
(University of Florida)
Prof.
David Tanner
(University of Florida)
Prof.
Guido Mueller
(University of Florida)
Mr
Joseph Gleason
(University of Florida)
Mr
Zachary Bush
(University of Florida)
