Results 21 to 30 of about 3,537,154 (243)
Enhancement of spontaneous parametric down-conversion in nonlinear metasurfaces
, 2022 Paper FW4H.1We experimentally demonstrate biphoton generation by spontaneous parametric down-conversion in resonant metasurfaces. In our metasurfaces, Mie-type resonances enable over 7 times more efficient biphoton generation compared to an unstructured ...
Younesi, M. +8 more
core +1 more source
Generation of Entangled Photons by A Short Coherence Length Violet Diode Laser
Diyala Journal of Engineering Sciences, 2013 Pumping a BBO crystal by a violet diode laser with a wavelength of (405 nm) output power of (24 mW) and a line width of (3nm) was employed to generate entangled photons with a wavelength of 810 nm by achieving type II phase matching conditions.
Ra'ad Subhi Abbood +2 more
doaj +1 more source
Towards spontaneous parametric down-conversion at low temperatures
EPJ Web of Conferences, 2017 The possibility of observing spontaneous parametric down-conversion in doped nonlinear crystals at low temperatures, which would be useful for combining heralded single-photon sources and quantum memories, is studied theoretically.
Akatiev Dmitrii +6 more
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Physical Review X, 2020 Spontaneous parametric down-conversion (SPDC) has been a key enabling technology in exploring quantum phenomena and their applications for decades. For instance, traditional SPDC, which splits a high-energy pump photon into two lower-energy photons, is a
C. W. Sandbo Chang +7 more
doaj +1 more source
New Journal of Physics, 2022 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
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The Source of Time-Correlated Photons at 1.064 μm and its Applications
EPJ Web of Conferences, 2015 The source of time-correlated photon-pairs at 1064 nm is described. The source consists of the spontaneous parametric down-conversion (SPDC) generator, pumped by cw laser operating at 532 nm, and the measuring and control appliances.
Gostev P.P. +8 more
doaj +1 more source
Single GaAs Nanowires for Near-Infrared Spontaneous Parametric Down-Conversion
, 2023 International audienceWe report 60 GHz/Wm photon pair generation via type-0 spontaneous parametric down-conversion at 1550 nm from individual free-standing GaAs nanowires with sub-450 nm diameter and lengths up to 5 ...
Karvounis, Artemios +13 more
core +1 more source
Polarization-Angle SPDC Spectrum and its Effect on Generated Photon States
EPJ Web of Conferences, 2015 Analytical formulas for vector components of the polarization vector of spontaneous parametric down-conversion (SPDC) radiation in the degenerated regime and its dependencies on the angle between the principal sections for the pump and SPDC rays are ...
Agapov A. +4 more
doaj +1 more source
Mie resonances in the spectrum of spontaneous parametric down-conversion
, 2022 Paper FTh1O.5We report on the first-time generation of biphotons via spontaneous parametric down-conversion driven by Mie-type resonances in subwavelength metasurfaces.
Younesi, M. +8 more
core +1 more source
Entanglement, Complementarity, and Vacuum Fields in Spontaneous Parametric Down-Conversion
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 +1 more source