Results 1 to 10 of about 43,116 (278)
Spontaneous parametric down-conversion [PDF]
Contemporary Physics, 2018 Spontaneous Parametric Down-Conversion (SPDC), also known as parametric fluorescence, parametric noise, parametric scattering and all various combinations of the abbreviation SPDC, is a non-linear optical process where a photon spontaneously splits into ...
Christophe Couteau
exaly +6 more sources
Entanglement, Complementarity, and Vacuum Fields in Spontaneous Parametric Down-Conversion [PDF]
Atoms, 2019 Using two crystals for spontaneous parametric down-conversion in a parallel setup, we observe two-photon interference with high visibility. The high visibility is consistent with complementarity and the absence of which-path information. The observations
Ralf Menzel +2 more
doaj +6 more sources
Tuning curve of type-0 spontaneous parametric down-conversion [PDF]
Journal of the Optical Society of America B: Optical Physics, 2013 We study the tuning curve of entangled photons generated by type-0 spontaneous parametric down-conversion in a periodically poled KTP crystal. We demonstrate the X-shaped spatiotemporal structure of the spectrum by means of measurements and numerical ...
André Stefanov
exaly +5 more sources
Classical model of spontaneous parametric down-conversion
Physical Review Research, 2022 We model spontaneous parametric down-conversion (SPDC) as classical difference frequency generation (DFG) of the pump field and a hypothetical stochastic “vacuum” seed field.
Girish Kulkarni +4 more
doaj +4 more sources
Observation of frequency-uncorrelated photon pairs generated by counter-propagating spontaneous parametric down-conversion. [PDF]
Sci Rep, 2021 We report the generation of frequency-uncorrelated photon pairs from counter-propagating spontaneous parametric down-conversion in a periodically-poled KTP waveguide.
Liu YC +11 more
europepmc +2 more sources
APL Photonics, 2018 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 +2 more sources
Spontaneous parametric down conversion without poling for silicon carbide and lithium niobate photonics. [PDF]
Sci RepState-of-the-art photon sources based on spontaneous parametric down-conversion (SPDC) currently rely on artificial structuring of the material nonlinearity to satisfy phase-matching conditions. This technique, known as periodic poling, is available only
Weiss TF +3 more
europepmc +2 more sources
X-ray parametric down-conversion reveals EUV-polariton. [PDF]
Nat CommunSpontaneous parametric down-conversion (PDC) of photons is a gateway into the quantum realm – thoroughly studied in nonlinear optics and ubiquitously used to generate non-classical states of light.
Krebs D +7 more
europepmc +2 more sources
Spontaneous Parametric Down-Conversion from GaAs Nanowires at Telecom Wavelength [PDF]
EPJ Web of Conferences, 2022 We report on the generation of photon pairs at 1550 nm from free-standing epitaxially grown self-assisted micrometre long GaAs nanowires. The efficiency of the spontaneous parametric down-conversion process has a rate of 320 GHz/Wm normalized to the ...
Saerens Grégoire +12 more
doaj +1 more source
General simulation method for spontaneous parametric down- and parametric up-conversion experiments
SciPost Physics Core, 2023 Spontaneous parametric down-conversion (SPDC) sources are an important technology for quantum sensing and imaging. We demonstrate a general simulation method, based on modeling from first principles, reproducing the spectrally and spatially resolved ...
Felix Riexinger, Mirco Kutas, Björn Haase, Patricia Bickert, Daniel Molter, Michael Bortz, Georg von Freymann
doaj +1 more source