Results 1 to 10 of about 5,194,279 (273)

Self-organized spatiotemporal quasi-phase-matching in microresonators [PDF]

open access: goldNature Communications
Quasi-phase-matching (QPM) is a widely adopted technique for mitigating stringent momentum conservation in nonlinear optical processes such as second-harmonic generation (SHG).
Ji Zhou   +6 more
doaj   +10 more sources

Optically programable quasi phase matching in four-wave mixing [PDF]

open access: goldNature Communications
Quasi-phase matching (QPM) enhances nonlinear optical processes by compensating for phase mismatch, but traditional methods require permanent material modifications, limiting applicability in centrosymmetric media like standard optical fibers.
Gil Bashan   +3 more
doaj   +4 more sources

Quasi-phase-matching enabled by van der Waals stacking [PDF]

open access: goldNature Communications
Quasi-phase matching (QPM) is a technique extensively utilized in nonlinear optics for enhancing the efficiency and stability of frequency conversion processes.
Yilin Tang   +10 more
doaj   +6 more sources

Temporal Quasi-Phase Matching Assists Robust Acoustic Adiabatic Passage [PDF]

open access: goldResearch
Recent work demonstrated stimulated Raman adiabatic passage-type transfer of energy along 3 acoustic cavities. After brief comments on the stimulated Raman adiabatic passage method, remarks on the scientific and technological relevance of this work are ...
Klaas Bergmann
doaj   +3 more sources

Large second harmonic generation enhancement in Si3N4 waveguides by all-optically induced quasi-phase-matching [PDF]

open access: yesNature Communications, 2017
Phase-matching and quasi-phase-matching in periodically poled ferroelectrics ensure efficient harmonic generation, but only statically. Here, Billat et al. demonstrate all-optically reconfigurable second harmonic generation by inscribing a stable grating
Adrien Billat   +5 more
doaj   +2 more sources

Generation of path-polarization hyperentanglement using quasi-phase-matching in quasi-periodic nonlinear photonic crystal [PDF]

open access: yesScientific Reports, 2017
A compact scheme for the generation of path-polarization entangled photon pairs is proposed by using a quasi-periodic nonlinear photonic crystal to simultaneously accomplish four spontaneous parametric down-conversion processes.
Guangqiang He   +5 more
doaj   +2 more sources

Quasi-phase-matching-division multiplexing holography in a three-dimensional nonlinear photonic crystal [PDF]

open access: yesLight: Science & Applications, 2021
Nonlinear holography has recently emerged as a novel tool to reconstruct the encoded information at a new wavelength, which has important applications in optical display and optical encryption.
Pengcheng Chen   +16 more
doaj   +2 more sources

Review Article: Quasi-phase-matching engineering of entangled photons

open access: yesAIP Advances, 2012
Quasi-phase-matching (QPM) technique has been successfully applied in nonlinear optics, such as optical frequency conversion. Recently, remarkable advances have been made in the QPM generation and manipulation of photon entanglement.
P. Xu, S. N. Zhu
doaj   +2 more sources

Quasi‐Periodic Behavior of Tropical Cyclone Precursors and Its Phase Matching With the Insolation Diurnal Cycle

open access: goldGeophysical Research Letters
The formation of tropical cyclones (TCs) remains a significant scientific challenge. Here, we demonstrate that robust quasi‐periodic behavior (QPB) emerges during TC genesis with idealized numerical simulations.
Bolei Yang   +4 more
doaj   +2 more sources

Non-Gaussian quantum steering produced by quasi-phase-matching third-harmonic generation [PDF]

open access: goldNew Journal of Physics
With the rapid advancements in fields such as quantum entanglement distillation and quantum metrology, the limitations of Gaussian states in certain applications within quantum computing and information processing have come to the forefront.
S Q Ma   +5 more
doaj   +2 more sources

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