Results 11 to 20 of about 43,116 (278)
Background and Review of Cavity-Enhanced Spontaneous Parametric Down-Conversion. [PDF]
J Res Natl Inst Stand Technol, 2019 Spontaneous parametric down-conversion (SPDC) in a nonlinear crystal has been a workhorse for the generation of entangled and correlated single-photon pairs used for quantum communications applications for nearly three decades.
Slattery O, Ma L, Zong K, Tang X.
europepmc +3 more sources
Spontaneous parametric down conversion without poling for silicon carbide and lithium niobate photonics [PDF]
Scientific ReportsState-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
Tim F. Weiss +3 more
doaj +2 more sources
Multimode Spontaneous Parametric Down-Conversion in the Lossy Medium [PDF]
Journal of Modern Optics, 2009 We study the process of multimode Spontaneous Parametric Down--Conversion (SPDC) in the lossy, one dimensional waveguide. We propose a description using first order Correlation Functions (CF) in the fluorescence fields, as a very fruitful and easy ...
Boyd RW +2 more
core +3 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
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 +3 more sources
Gain-Induced Group Delay in Spontaneous Parametric Down-Conversion
Physical Review Letters18 pages, 9 figures (including supplemental material)
Guillaume Thekkadath +2 more
exaly +5 more sources
X-ray parametric down-conversion reveals EUV-polariton [PDF]
Nature CommunicationsSpontaneous 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.
Dietrich Krebs +7 more
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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
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Time Ordering in Spontaneous Parametric Down-conversion [PDF]
AIP Conference Proceedings, 2011 We consider the multi‐mode parametric down‐conversion Hamiltonian that governs the evolution of the fields inside a nonlinear crystal. If the Hamiltonian does not commute with itself at all times—as is the case for the multimode down‐conversion Hamiltonian—then the expansion of the evolution operator must take the form of the time‐ordered Dyson series,
Agata M. Brańczyk +4 more
openaire +4 more sources
Towards Measuring Terahertz Photon Statistics by a Superconducting Bolometer
Sensors, 2021 Statistical distributions of the analog readings of an antenna-coupled THz superconducting bolometer were measured and analyzed under a special type of irradiation by low-energy fluxes of THz photons with Poisson photon statistics and controllable mean ...
Pavel Prudkovskii +3 more
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