Results 41 to 50 of about 6,930 (295)

Deflection of light by a Coulomb charge in Born–Infeld electrodynamics

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
We study the propagation of light under a strong electric field in Born–Infeld electrodynamics. The nonlinear effect can be described by the effective indices of refraction.
Jin Young Kim
doaj   +1 more source

Low- and High-Order Optical Nonlinearities of Quantum Dots

open access: yesPhotonics, 2022
Various potential applications of quantum dots (QDs) require knowledge of their optical nonlinearities. In this review, the third-order nonlinearities responsible for the saturable absorption, two-photon absorption, reverse saturable absorption, and ...
Rashid A. Ganeev
doaj   +1 more source

Detection of second-order nonlinear optical magnetization by mapping normalized Stokes parameters [PDF]

open access: yes, 2013
A measurable magnetic (nonlocal) contribution to the second harmonic generation (SHG) of nonmagnetic materials is an intriguing issue related to chiral materials, such as biomolecules.
Larciprete, Maria Cristina   +11 more
core   +1 more source

Measuring Nonlinear Refraction and Its Dispersion

open access: yes, 2009
We describe methods for measuring the nonlinear refraction of nominally transparent materials that involve propagation from the near to the far field, which changes a phase distortion into an amplitude redistribution.
Eric W. Van Stryland   +3 more
core   +2 more sources

Effect of femtosecond laser pulse repetition rate on nonlinear optical properties of organic liquids [PDF]

open access: yesPeerJ Physical Chemistry, 2019
The effect of the repetition rate of femtosecond laser pulses on the two-photon absorption and nonlinear refraction of pure organic liquids is presented using the conventional Z-scan technique. Such a study provides a way to determine the nature of light-
Sandeep Kumar Maurya   +2 more
doaj   +2 more sources

Laser Induced Nonlinear Optical Properties of Zinc Oxide Thin Film Prepared by Sol-Gel Method [PDF]

open access: yesЖурнал нано- та електронної фізики, 2011
Optical nonlinearities of spin coated ZnO thin film have been investigated by using single beam Z-Scan technique in the visible region. X- ray diffraction shows that all films are oriented along the c-axis direction of the hexagonal crystal structure ...
Vinay Kumari   +4 more
doaj  

Three-dimensional tomographic inversion of combined reflection and refraction seismic travel-time data

open access: yes, 2003
A tomographic inversion method is presented for the determination of 3-D velocity and interface structure from a wide range of body-wave seismic traveltime data types.
T. A. Minshull   +8 more
core   +1 more source

Perspectives on nonlinear optics of graphene: Opportunities and challenges

open access: yesAPL Photonics, 2022
The first nonlinear-optical experiments with graphene date back over a decade, and a wide range of research breakthroughs has been reported since then, particularly on the third-order nonlinearities of the material.
Nathalie Vermeulen
doaj   +1 more source

Refraction of nonlinear light beams in nematic liquid crystals [PDF]

open access: yes, 2013
Optical spatial solitons in nematic liquid crystals, termed nematicons, have become an excellent test bed for nonlinear optics, ranging from fundamental effects to potential uses, such as designing and demonstrating all-optical switching and routing ...
Xia, Wenjun
core  

Negative refraction in nonlinear wave systems

open access: yes, 2007
Scientists have been familiar with the phenomenon of wave refraction for several centuries. Recently, a novel type of refraction, i.e., negative refraction, where both incident and refractory lines locate on the same side of the normal line, has been ...
Gang Hu, Zhoujian Cao, Hong Zhang
core   +1 more source

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