77 citations · 162 across the 8 of their papers we have counts for
8 papers
Absolute calibration of photodetectors: photocurrent multiplication versus photocurrent subtraction
I. N. Agafonov, M. V. Chekhova, T. Sh. Iskhakov +3
We report testing of the new absolute method of photodetectors calibration based on the difference-signal measurement for two-mode squeezed vacuum by comparison with the traditiona…
Comparative Test of Two Methods of Quantum Efficiency Absolute Measurement Based on Squeezed Vacuum Direct Detection
I. N. Agafonov, M. V. Chekhova, T. Sh. Iskhakov +3
We realize and test in experiment a method recently proposed for measuring absolute quantum efficiency of analog photodetectors. Similarly to the traditional (Klyshko) method of ab…
Multiphoton ghost imaging with classical light
I. N. Agafonov, M. V. Chekhova, A. N. Penin
One of the possible types of n-th order ghost imaging is experimentally performed using multi-photon (higher-order) intensity correlations of pseudothermal light. It is shown that…
High-visibility multi-photon interference of Hanbury Brown - Twiss type for classical light
I. N. Agafonov, M. V. Chekhova, T. Sh. Iskhakov +1
Difference-phase (or Hanbury Brown - Twiss type) intensity interference of classical light is considered in higher orders in the intensity. It is shown that, while the visibility o…
Absolute Calibration of Analog Detectors by using Parametric Down Conversion
Giorgio Brida, Maria Chekhova, Marco Genovese +3
In this paper we report our systematic study of a promising absolute calibration technique of analog photo-detectors, based on the properties of parametric down conversion. Our for…
High-Visibility Multi-Photon Interference of Classical Light
I. N. Agafonov, M. V. Chekhova, T. Sh. Iskhakov +1
It is shown that the visibility of multi-photon interference for classical sources grows rapidly with the order of interference. For three-photon and four-photon interference of tw…