Journal Article

PUBDB-2024-01007

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Coherent detection of ultraweak electromagnetic fields

Bush, Z. R. ; Barke, S. ; Hollis, H.Extern* ; Spector, A. D.DESY* ; Hallal, A.Extern* ; Messineo, G. ; Tanner, D.Extern* ; Mueller, G.Extern*

2019
American Physical Society Ridge, NY

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Please use a persistent id in citations: doi:10.1103/PhysRevD.99.022001  doi:10.3204/PUBDB-2024-01007

Report No.: arXiv:1710.04209

Abstract: 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.

Keyword(s): Experiments in gravity, cosmology, cosmic rays

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Contributing Institute(s):

1. Any Light Particle Search (ALPS)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)

Experiment(s):

1. Any Light Particle Search

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