TY  - JOUR
AU  - Bush, Zachary R.
AU  - Barke, Simon
AU  - Hollis, Harold
AU  - Spector, Aaron D.
AU  - Hallal, Ayman
AU  - Messineo, Giuseppe
AU  - Tanner, David
AU  - Mueller, Guido
TI  - Coherent detection of ultraweak electromagnetic fields
JO  - Physical review / D
VL  - 99
IS  - 2
SN  - 2470-0010
CY  - Ridge, NY
PB  - American Physical Society
M1  - PUBDB-2024-01007
M1  - arXiv:1710.04209
SP  - 022001
PY  - 2019
AB  - 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<sup>−5</sup> photons/s or greater. We present initial results of an equivalent dark count rate on the order of 10<sup>−5</sup> photons/s as well as successful generation and detection of a signal with a field strength equivalent to 10<sup>−2</sup> photons/s. 
KW  - Experiments in gravity, cosmology, cosmic rays (autogen)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000454769300001
DO  - DOI:10.1103/PhysRevD.99.022001
UR  - https://bib-pubdb1.desy.de/record/604148
ER  -