Details

Autor(en) / Beteiligte

• Bush, Zachary R.
• Barke, Simon
• Hollis, Harold
• Spector, Aaron D.
• Hallal, Ayman
• Messineo, Giuseppe
• Tanner, D. B.
• Mueller, Guido

Titel

Coherent detection of ultraweak electromagnetic fields

Ist Teil von

• Physical review. D, 2019-01, Vol.99 (2), p.022001, Article 022001

Ort / Verlag

College Park: American Physical Society

Erscheinungsjahr

2019

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• We explore the application of heterodyne interferometry for a weak-field coherent detection scheme. The methods detailed here will be used in ALPS II, an experiment designed to search for weakly interacting, sub-eV particles. For ALPS II to reach its design sensitivity this detection system must be capable of accurately measuring fields with equivalent amplitudes on the order of 10−5 photons / s or greater. We present initial results of an equivalent dark count rate on the order of 10−5 photons / s as well as successful generation and detection of a signal with a field strength equivalent to 10−2 photons / s .