Results 71 to 80 of about 3,503,750 (176)
, 2004 We present, to the best of our knowledge, the first experimental demonstration by direct detection of the Bose-Einstein photon-number distribution of highly spatially multi-mode but temporally single mode spontaneous parametric down ...
A. Mosset +7 more
core +1 more source
Photon correlations in type-I optical parametric down-conversion
, 2000 We develop a quantum theory for photon-pair correlations in type-I spontaneous parametric down-conversion, including crystal dispersion. We obtain different amplitudes for the correlations of degenerate (identical frequencies) and non-degenerate ...
Sarkar, S; id_orcid +2 more
core +5 more sources
Stimulated emission tomography for efficient characterization of spatial entanglement
Physical Review ResearchStimulated-emission tomography (SET) is an excellent tool for characterizing the process of spontaneous parametric down conversion (SPDC), which is commonly used to create pairs of entangled photons for use in quantum information protocols.
Yang Xu +2 more
doaj +1 more source
Quantum Entangled Photon‐Pair Generation From van der Waals NbOI2
Advanced Photonics ResearchThe realization of quantum light sources is crucial for advancing quantum technologies. Two‐dimensional van der Waals (vdW) materials offer a compelling platform for ultracompact entangled photon‐pair sources due to their strong optical nonlinearities ...
Shaohua Fu +3 more
doaj +1 more source
, 2002 We have used the transverse correlated properties of the entangled photon pairs generated in the process of spontaneous parametric down-conversion, which is pumped by a femtosecond pulse laser, to perform Young's interference experiment.
Lu SL,Chinese Acad Sci,Inst Semicond,Natl Lab Superlattices & Microstruct,POB 912,Beijing 100083,Peoples R China. +5 more
core
Carrier-envelope-phase Dependence in Spontaneous Parametric Down-Conversion
The influence of the carrier-envelope phase of a femtosecond pump laser pulse on spontaneous parametric down-conversion is investigated. We show that the coincidence rates and joint spectrum intensity of the generated entangled biphotons are modified.
Sanjit Karmakar, Chen-Ting Liao
core +1 more source
, 2018 We report the complete measurement of the spectral properties of entangled photon pairs generated via frequency-degenerate type-I spontaneous parametric down-conversion pumped by a cw laser in both the collinear and the noncollinear regimes.
Baek, SY, Kim, YH
core +1 more source
New Journal of Physics, 2019 The existing widely-accepted theory of photon-pair generation via spontaneous down-conversion (SPDC) in nonlinear optical crystals and waveguides is incomplete, as it fails to account for the important physical phenomenon of parametric resonances.
Philip B Main +2 more
doaj +1 more source
, 2018 Relying on the bandgap modes of a nonlinear periodic waveguide, we propose the concept of atom-mediated spontaneous parametric down-conversion, where photon-pairs are only generated with a single 2-level emitter present, creating a heralded excitation ...
Pertsch, Thomas +9 more
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New Journal of Physics, 2020 Photon pairs and heralded single photons, obtained from cavity-assisted parametric down conversion (PDC), play an important role in quantum communications and technology.
Golnoush Shafiee +8 more
doaj +1 more source