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Multimode description of spontaneous parametric down-conversion
Journal of Optics B: Quantum and Semiclassical Optics, 2005We derive the multimode generating function, joint photon-number distribution and joint integrated-intensity distribution for spontaneous parametric down-conversion in relation to measured experimental data.
Jan Peřina, Jaromír Křepelka
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Tiniest Sources of Spontaneous Parametric Down Conversion
Optica Nonlinear Optics Topical Meeting 2023, 2023Spontaneous parametric down-conversion in ultrathin films or metasurfaces has loose phasematching, providing enormous freedom for quantum state engineering. This includes tunable polarization entanglement, resonant enhancement of emission, controlled directivity, and generation of complex quantum states.
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A Model of Terahertz Parametric Process Including Spontaneous Parametric Down-conversion
Journal of Infrared, Millimeter, and Terahertz Waves, 2021A new numerical model of terahertz parametric process is demonstrated, which takes the spontaneous parametric down-conversion into consideration by adding tens of frequency components in the coupled-wave equations. To set the values of some parameters in this model, the residual pump energy and idler spectra during spontaneous parametric down ...
Yu Qin +5 more
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Surface effect on spontaneous parametric down-conversion
SPIE Proceedings, 2012On the interface between two isotropic linear media the re°ection and transmission of separate monochro- matic waves occur in a normal incidence, which are described by Fresnel's formulas. On the interface between two nonlinear media, namely one of the media may be linear in a limit, the re°ection and the transmission are complicated by a wave mixing ...
Antonín Lukš +2 more
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Transverse correlation in optical spontaneous parametric down-conversion
Physical Review A, 1996The transverse correlation between the pairs of photons produced in optical spontaneous parametric down-conversion is analyzed. The interesting features of the correlation arise from the form of the two-photon state generated in the process. The physics of the rings of radiation emerging from the crystal is described.
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Spontaneous Parametric Down-Conversion in 4H-SiC Integrated Platform
Laser and Photonics ReviewsAbstract4H‐silicon carbide (SiC) has recently emerged as a promising material for nonlinear photonic integrated circuits, thanks to its low loss, wide bandgap, as well as strong second‐order () and third‐order () nonlinearities. Though its unique crystal structure allows versatile processes, spontaneous parametric down‐conversion (SPDC) still remains ...
Xiaodong Shi, Angela Anna Baiju
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Observation of spontaneous parametric down conversion in LiNbO3 waveguide arrays
Conference on Lasers and Electro-Optics 2012, 2012We study experimentally the process of bi-photon generation through spontaneous parametric down-conversion in waveguide arrays. We show the formation of a unique spatial-spectral photon pattern and its dependence on the phase-matching conditions.
Solntsev, Alexander S +6 more
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Spontaneous Parametric Down-Conversion in Structured Environments
International Conference on Quantum Information, 2007I analyze, in a general and quantitative way, the ability of transverse and longitudinal structure in an optical system to enhance the flux and modal purity of spontaneous parametric down-conversion.
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Experimental Realization of Spontaneous Parametric Down Conversion
Spontaneous Parametric Down-Conversion (SPDC) is a cornerstone phenomenon in nonlinear optics, where an incident high-energy photon is transformed into a pair of lower-energy photons. This quantum process serves as a fundamental tool for generating entangled photon pairs, heralded single photons, and squeezed light, making it indispensable in the ...Mobin Motaharifar, Mahmood Hasani
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Spontaneous parametric down conversion on the microscopic scale
2021Optik im Mikro- und Nanobereich hat in den letzten Jahren eine rasante Entwicklung durchlaufen. Es gibt eine Reihe von Gründen für die fortschreitende Verbreitung, am Wichtigsten sind die Durchbrüche im Bereich der Nanofabrikation und die Aussicht auf voll integrierbare optische Chips und Schaltkreise.
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