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Spontaneous parametric down-conversion
Journal of Experimental and Theoretical Physics Letters, 2005Spontaneous parametric down-conversion (SPDC) in media with no inversion center and the use of this phenomenon in the spectroscopy of natural oscillation states of a crystal lattice (i.e., optical phonons) are retrospectively described. We think that the SPDC spectroscopy method is estimated inappropriately and hope to again attract the attention of ...
G. Kh. Kitaeva, A. N. Penin
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Nanoscale Spontaneous Parametric Down-Conversion
OSA Nonlinear Optics 2021, 2021We generate entangled photons via spontaneous parametric down-conversion (SPDC) in subwavelength films of nonlinear materials and all-dielectric nonlinear metasurfaces. The SPDC spectra reveal resonances: Fabry-Perot in the first case and Mie in the second case.
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2013
In this chapter we review the process of parametric down-conversion (PDC) and discuss the different methods to use PDC as a heralded single-photon source.PDC is a non-linear optical process, where an incoming pump photon decays, under energy and momentum conservation, into a photon-pair. The creation of photons in pairs allows for the implementation of
Christ, Andreas +4 more
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In this chapter we review the process of parametric down-conversion (PDC) and discuss the different methods to use PDC as a heralded single-photon source.PDC is a non-linear optical process, where an incoming pump photon decays, under energy and momentum conservation, into a photon-pair. The creation of photons in pairs allows for the implementation of
Christ, Andreas +4 more
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Spatial Quantum Signatures in Parametric Down-Conversion
Physical Review Letters, 1997We calculate the normal and time ordered spatial intensity correlation function of the signal field in a degenerate parametric oscillator below threshold, with spherical mirrors. In the far field, it exhibits a two peak structure, and the correlation is maximal between points opposite each other with respect to the axis of the system.
MARZOLI, Irene, GATTI A., LUGIATO L. A.
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Entanglement in Cascaded-Crystal Parametric Down-Conversion
Physical Review Letters, 2001Physical Review ...
M, Atatüre +3 more
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Cryogenic Degenerate Spontaneous Parametric Down-Conversion
Optica Quantum 2.0 Conference and Exhibition, 2023We show a HOM dip between degenerate signal and idler photons at (1559.33 ± 0.05) nm from cryogenic integrated SPDC in lithium niobate, compatible with superconducting detectors. This is enabled by precise control over the cryogenic phase-matching.
Nina Amelie Lange +4 more
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A single photon source using parametric down conversion
2003 European Quantum Electronics Conference. EQEC 2003 (IEEE Cat No.03TH8665), 2003Experimental realization of a gated parametric down conversion (GPDC) and the achievement of the highest value of P(1) (probability to find one photon in certain output pulse) among the reported single photon sources as far as the authors' knowledge, is presented.
Shigeki Takeuchi +2 more
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Hyperentanglement in Parametric Down-Conversion
2003A theory of spontaneous parametric down-conversion, which gives rise to a quantum state that is simultaneously entangled in three-dimensional wavevector and polarization, allows us to understand the unusual characteristics of fourth-order quantum interference in many experiments, including ultrafast parametric down-conversion, the specific example ...
Alexander V. Sergienko +5 more
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Parametric down conversion of X-rays
Optics Communications, 1970Abstract Parametric down conversion of common X-ray sources in a wide range of readily available crystals is calculated to yield high signal-to-noise ratios. A detailed analysis and optimization of experimental parameters is presented.
B.F. Levine, Isaac Freund
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2003
Parametric down conversion, the spontaneous decay of single photons into highly correlated pairs, is the prime example of quantum optics with x-rays. The effect is very weak, with a cross section of the order of 10-9 of the Thomson scattering cross section. A number of experiments to demonstrate the effect and their results are described here.
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Parametric down conversion, the spontaneous decay of single photons into highly correlated pairs, is the prime example of quantum optics with x-rays. The effect is very weak, with a cross section of the order of 10-9 of the Thomson scattering cross section. A number of experiments to demonstrate the effect and their results are described here.
openaire +1 more source