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Quantum spatial dynamics of high-gain parametric down-conversion accompanied by cascaded up-conversion
A. V. Rasputnyi, D. A. Kopylov
Quantum cascaded up-conversion (CUpC) of parametric down conversion (PDC) in a finite nonlinear -crystal is studied theoretically within parametric approximation. The exac…
Study of broadband multimode light via non-phase-matched sum frequency generation
Denis A. Kopylov, Kirill Yu. Spasibko, Tatiana V. Murzina +1
We propose non-phase-matched sum frequency generation (SFG) as a method for characterizing broadband multimode light. We demonstrate its advantages using high-gain parametric down…
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…