TY - JOUR
T1 - Optimizing the signal-to-noise ratio of a beam-deflection measurement with interferometric weak values
AU - Starling, David J.
AU - Dixon, P. Ben
AU - Jordan, Andrew N.
AU - Howell, John C.
PY - 2009/10/8
Y1 - 2009/10/8
N2 - The amplification obtained using weak values is quantified through a detailed investigation of the signal-to-noise ratio for an optical beam-deflection measurement. We show that for a given deflection, input power and beam radius, the use of interferometric weak values allows one to obtain the optimum signal-to-noise ratio using a coherent beam. This method has the advantage of reduced technical noise and allows for the use of detectors with a low saturation intensity. We report on an experiment which improves the signal-to-noise ratio for a beam-deflection measurement by a factor of 54 when compared to a measurement using the same beam size and a quantum-limited detector.
AB - The amplification obtained using weak values is quantified through a detailed investigation of the signal-to-noise ratio for an optical beam-deflection measurement. We show that for a given deflection, input power and beam radius, the use of interferometric weak values allows one to obtain the optimum signal-to-noise ratio using a coherent beam. This method has the advantage of reduced technical noise and allows for the use of detectors with a low saturation intensity. We report on an experiment which improves the signal-to-noise ratio for a beam-deflection measurement by a factor of 54 when compared to a measurement using the same beam size and a quantum-limited detector.
UR - http://www.scopus.com/inward/record.url?scp=70349865047&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.80.041803
DO - 10.1103/PhysRevA.80.041803
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:70349865047
SN - 1050-2947
VL - 80
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 4
M1 - 041803
ER -