Results 31 to 40 of about 2,260 (208)

Nonlinear Radiation Gauge for Near Kerr Spacetimes

open access: yesCommunications in Mathematical Physics, 2022
AbstractIn this paper, we introduce and explore the properties of a new gauge choice for the vacuum Einstein equation inspired by the ingoing and outgoing radiation gauges (IRG, ORG) for the linearized vacuum Einstein equation introduced by Chrzanowski in his work on metric reconstruction (Chrzanowski in Phys Rev D 11:2042–2062, 1975) on the Kerr ...
Lars Andersson   +3 more
openaire   +5 more sources

Six-wave interaction with double wavefront reversal in multimode waveguides with Kerr and thermal nonlinearities

open access: yesКомпьютерная оптика, 2023
Spatial selectivity of six-wave radiation converters, which perform double wavefront conjugation of a signal wave in long multimode waveguides with both Kerr and thermal nonlinearities, is studied.
V.V. Ivakhnik   +2 more
doaj   +1 more source

Modulated electromechanics: large enhancements of nonlinearities

open access: yesNew Journal of Physics, 2014
It is well-known that the nonlinear coupling between a mechanical oscillator and a superconducting resonator or optical cavity can be used to generate a Kerr-nonlinearity for the cavity mode.
Jie-Qiao Liao   +3 more
doaj   +1 more source

Effects of magnonic Kerr nonlinearity on magnon-polaritons with a soft-mode [PDF]

open access: yesAIP Advances
We theoretically study the effects of magnonic Kerr nonlinearity on magnon–polaritons (MPs) with a soft-mode in easy-axis ferromagnets coupled to a microwave cavity.
Takahiro Chiba
doaj   +1 more source

Optical Bistability in a Controllable Giant Self-Kerr Nonlinear Gaseous Medium under Electromagnetically Induced Transparency and Doppler Broadening

open access: yesInternational Journal of Optics, 2018
We study optical bistability (OB) in a controllable giant self-Kerr nonlinear atomic gaseous medium placed in a unidirectional ring cavity.
Phuong Le Thi Minh   +3 more
doaj   +1 more source

Kerr nonlinear coupler and entanglement [PDF]

open access: yesJournal of Optics B: Quantum and Semiclassical Optics, 2004
We discuss a model comprising two coupled nonlinear oscillators (Kerr-like nonlinear coupler) with one of them pumped by an external coherent excitation. Applying the method of nonlinear quantum scissors we show that the quantum evolution of the coupler can be closed within a finite set of n-photon Fock states. Moreover, we show that the system is able
Leonski, Wieslaw, Miranowicz, Adam
openaire   +2 more sources

A Kerr polarization controller

open access: yesNature Communications, 2022
The authors demonstrate an all-optical method to control the polarization of light. Harnessing the Kerr nonlinearity in an optical resonator, this enables precise polarization control in photonic circuits.
N. Moroney   +12 more
doaj   +1 more source

High-Transmittance Femtosecond Optical Kerr Gate with Double Gate Pulses Based on Birefringence Effect

open access: yesPhotonics, 2022
An optical Kerr gate (OKG) is an ultrafast optical switch based on the optical Kerr effect. The performance of a conventional OKG depends mainly on Kerr materials.
Zhenqiang Huang   +5 more
doaj   +1 more source

Optical Kerr Type Nonlinearity

open access: yesActa Physica Polonica A, 2001
The origin of the Kerr type nonlinearity of the medium as a result of the interaction between photons via the Dirac delta-potential is presented in the formalism adopted from the photon wave function approach. In the view of the result the optical soliton may be treated as a bound state (cluster) of many photons.
openaire   +2 more sources

Giant nonlinear Kerr effects [PDF]

open access: yesJournal of Magnetism and Magnetic Materials, 1996
Abstract The nonlinear second harmonic reflectivity of magnetic surfaces is found to display longitudinal nonlinear Kerr rotations that are three orders of magnitude larger than their linear equivalent. In the transversal geometry, similar enhancements are observed for the intensity changes.
Groot Koerkamp, M., Rasing, T.H.M.
openaire   +2 more sources

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