Results 41 to 50 of about 169,436 (283)
The measurement of the position–momentum Einstein–Podolsky–Rosen (EPR) correlations of a two-photon state is important for many quantum information applications ranging from quantum key distribution to coincidence imaging.
Abhinandan Bhattacharjee +2 more
doaj +1 more source
We study a calibration scheme for terahertz wave nonlinear-optical detectors based on spontaneous parametric down-conversion. Contrary to the usual low wavelength pump in the green, we report here on the observation of spontaneous parametric down ...
Vladimir V. Kornienko +4 more
doaj +1 more source
Advances in nonlinear metasurfaces for imaging, quantum, and sensing applications
Metasurfaces, composed of artificial meta-atoms of subwavelength size, can support strong light–matter interaction based on multipolar resonances and plasmonics, hence offering the great capability of empowering nonlinear generation.
Zheng Ze +10 more
doaj +1 more source
Absolute calibration of Analog Detectors using Stimulated Parametric Down Conversion
Spontaneous parametric down conversion has been largely exploited as a tool for absolute calibration of photon counting detectors, photomultiplier tubes or avalanche photodiodes working in Geiger regime.
G. Brida +8 more
core +1 more source
. We discuss the possibilities of controlling the spectrum of correlated photons generated via spontaneous parametric down-conversion by using external homogeneous electric field acting on the nonlinear crystal.
Akatiev D.O., Kalachev A.A.
doaj +1 more source
Understanding High-Gain Twin-Beam Sources Using Cascaded Stimulated Emission
We present a new method for the spectral characterization of pulsed twin-beam sources in the high-gain regime, using cascaded stimulated emission. We show an implementation of this method for a periodically poled potassium titanyl phosphate spontaneous ...
Gil Triginer +7 more
doaj +1 more source
We develop a nonperturbative formulation based on the Green's function quantization method that can describe spontaneous parametric down-conversion in the high-gain regime in nonlinear optical structures with arbitrary amount of loss and dispersion. This
Aleksa Krstić +2 more
doaj +1 more source
Polarization Entanglement Purification using Spatial Entanglement [PDF]
Parametric down-conversion can produce photons that are entangled both in polarization and in space. Here we show how the spatial entanglement can be used to purify the polarization entanglement using only linear optical elements. Spatial entanglement as
Pan, Jian-Wei, Simon, Christoph
core +2 more sources
Confirming X-ray parametric down conversion by time–energy correlation
We present measurements of X-ray Parametric Down Conversion at the Advanced Photon Source synchrotron facility. Using an incoming pump beam at 22 keV, we observe the simultaneous, elastic emission of down-converted photon pairs generated in a diamond ...
N.J. Hartley +18 more
doaj +1 more source
Photon Number Statistics of Multimode Parametric Down-Conversion [PDF]
5 pages, 3 ...
Avenhaus, M +5 more
openaire +4 more sources

