136 citations · 471 across the 10 of their papers we have counts for
10 papers
Three-dimensional Quantum Polarization Tomography of Macroscopic Bell States
Bhaskar Kanseri, Timur Iskhakov, Ivan Agafonov +2
The polarization properties of macroscopic Bell states are characterized using three-dimensional quantum polarization tomography. This method utilizes three-dimensional inverse Rad…
Polarization-Entangled Light Pulses of 10^5 Photons
Timur Sh. Iskhakov, Ivan N. Agafonov, Maria V. Chekhova +1
We experimentally demonstrate polarization entanglement for squeezed vacuum pulses containing more than 10^5 photons. We also study photon-number entanglement by calculating the Sc…
Macroscopic Bell States and the Higher-Order Degree of Polarization
Timur Sh. Iskhakov, Ivan N. Agafonov, Maria V. Chekhova +2
We study polarization properties of the macroscopic analogues of two-photon Bell states. The effect of hidden polarization, i.e., polarization in the second (and higher) orders in…
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…