|Title||High accuracy verification of a correlated-photon- based method for determining photoncounting detection efficiency|
|Publication Type||Journal Article|
|Year of Publication||2007|
|Authors||S. V. Polyakov, and A. L. Migdall|
|Keywords||2007, Metrology, Photon statistics, Quantum detectors, Single Fellow|
We have characterized an independent primary standard method to calibrate detection efficiency of photon-counting detectors based on twophoton correlations. We have verified this method and its uncertainty by comparing it to a substitution method using a conventionally calibrated transfer detector tied to a national primary standard detector scale. We obtained a relative standard uncertainty for the correlated-photon method of 0.18 % (k=1) and for the substitution method of 0.17 % (k=1). From a series of measurements we found that the two independent calibration techniques differ by 0.14 (14) %, which is within the established uncertainty of comparison. We believe this is the highest accuracy characterization and independent verification of the correlated-photon method yet achieved.
High accuracy verification of a correlated-photon- based method for determining photoncounting detection efficiency
Subscribe to A Quantum Bit
Quantum physics began with revolutionary discoveries in the early twentieth century and continues to be central in today’s physics research. Learn about quantum physics, bit by bit. From definitions to the latest research, this is your portal. Subscribe to receive regular emails from the quantum world. Previous Issues...
Sign Up Now
Sign up to receive A Quantum Bit in your email!