65 citations · 200 across the 13 of their papers we have counts for
13 papers
Tripartite quantum correlations obtained by post-selection from twin beams
Pavel Pavlicek, Jan Perina, Vaclav Michalek +2
Spatially-resolved photon counting of a twin beam performed by an iCCD camera allows for versatile tailoring the properties of the beams formed by parts of the original twin beam.…
Calibration of single-photon cameras using radioluminescent light sources
Radek Machulka, Václav Michálek, Ondřej Haderka +1
In this paper, we address the calibration of the quantum efficiency of single-photon cameras using radioluminescent light sources. The proposed methods are subsequently compared wi…
Experimental photon addition and subtraction in multi-mode and entangled optical fields
Kishore Thapliyal, Jan Peřina, Ondřej Haderka +2
Multiple photon addition and subtraction applied to multi-mode thermal and sub-Poissonian fields as well as twin beams is mutually compared using one experimental setup. Twin beams…
Revealing Nonclassicality of Multiphoton Optical Beams via Artificial Neural Networks
Radek Machulka, Jan Peřina, Václav Michálek +2
The identification of nonclassical features of multiphoton quantum states represents a task of the utmost importance in the development of many quantum photonic technologies. Under…
Non-classicality criteria for N-dimensional optical fields detected by quadratic detectors
Jan Perina, Pavel Pavlicek, Vaclav Michalek +2
Non-classicality criteria for general N-dimensional optical fields are derived. They involve intensity moments, the probabilities of photon-number distributions or combinations of…
Two-beam light with simultaneous anticorrelations in photon-number fluctuations and sub-Poissonian statistics
Jan Perina, Vaclav MIchalek, Radek Machulka +1
Two twin beams with a shared signal beam and separated idler beams are used together with the photon-number-resolving postselection in the signal beam to arrive at two coupled beam…
Waves in intensity coherence of evolving intense twin beams
Radek Machulka, Jan Perina, Ondrej Haderka +2
Strong correlations between the signal and idler beams imprinted during their generation dominantly determine the properties of twin beams. They are also responsible for the waves…
Luminescence-induced noise in single photon sources based on BBO crystals
Radek Machulka, Karel Lemr, Ondřej Haderka +3
Single-photon sources based on the process of spontaneous parametric down-conversion play a key role in various applied disciplines of quantum optics. We characterize intrinsic lum…
Spatial properties of twin-beam correlations at low- to high-intensity transition
Radek Machulka, Ondrej Haderka, Jan Perina +3
It is shown that spatial correlation functions measured for correlated photon pairs at the single-photon level correspond to speckle patterns visible at high intensities. This corr…
Characterizing the non-classicality of mesoscopic optical twin-beam states
Alessia Allevi, Marco Lamperti, Maria Bondani +4
We present a robust tool to analyze nonclassical properties of multimode twin-beam states in the mesoscopic photon-number domain. The measurements are performed by direct detection…
Optimal sub-Poissonian light generation from twin beams by photon-number resolving detectors
Marco Lamperti, Alessia Allevi, Maria Bondani +4
We generate nonclassical conditional states by exploiting the quantum correlations of multi-mode twin-beam states endowed with a sizeable number of photons. A strong relation betwe…
Generation of polarization-entangled photon pairs in a Bragg reflection waveguide
A. Valles, M. Hendrych, J. Svozilik +6
We demonstrate experimentally that spontaneous parametric down-conversion in an AlGaAs semiconductor Bragg reflection waveguide can make for paired photons highly entangled in the…
Spatial and spectral properties of the pulsed second-harmonic generation in a PP-KTP waveguide
Radek Machulka, Jiří Svozilík, Jan Soubusta +2
Spatial and spectral properties of the pulsed second harmonic generation in a periodically-poled KTP waveguide exploiting simultaneously the first, second, and third harmonics of p…