109 citations · 159 across the 3 of their papers we have counts for
3 papers
Quantum tomography enhanced through parametric amplification
E. Knyazev, K. Yu. Spasibko, M. V. Chekhova +1
Quantum tomography is the standard method of reconstructing the Wigner function of quantum states of light by means of balanced homodyne detection. The reconstruction quality stron…
Multiphoton Effects Enhanced Due to Ultrafast Photon-Number Fluctuations
Kirill Yu. Spasibko, Denis A. Kopylov, Victor L. Krutyanskiy +3
Multi-photon processes are the essence of nonlinear optics. Optical harmonics generation and multi-photon absorption, ionization, polymerization or spectroscopy are widely used in…
Ring-shaped spectra of parametric down-conversion and entangled photons that never meet
Kirill Spasibko, Denis Kopylov, Tatiana Murzina +2
We report on the observation of an unusual type of parametric down-conversion. In the regime where collinear degenerate emission is in the anomalous range of group-velocity dispers…