663 citations · 5.8k across the 130 of their papers we have counts for
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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…
Accessing photon bunching with photon number resolving multi-pixel detector
Dmitry A. Kalashnikov, Si-Hui Tan, Maria V. Chekhova +1
In quantum optics and its applications, there is an urgent demand for photon-number resolving detectors. Recently, there appeared multi-pixel detectors (MPPC) that are able to dist…
Macroscopic Pure State of Light Free of Polarization Noise
Timur Sh. Iskhakov, Maria V. Chekhova, Georgy O. Rytikov +1
The preparation of completely non-polarized light is seemingly easy: an everyday example is sunlight. The task is much more difficult if light has to be in a pure quantum state, as…
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…
Biphoton compression in standard optical fiber: exact numerical calculation
G. brida, M. V. Chekhova, I. P. Degiovanni +4
Generation of two-photon wavepackets, produced by spontaneous parametric down conversion in crystals with linearly chirped quasi-phase matching grating, is analyzed. Although being…
Testing Ultrafast Two-Photon Spectral Amplitudes via Optical Fibres
G. Brida, V. Caricato, M. V. Chekhova +3
We test two-dimensional TPSA of biphoton light emitted via ultrafast spontaneous parametric down-conversion (SPDC) using the effect of group-velocity dispersion in optical fibres.…