Results 151 to 160 of about 1,084,194 (176)
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Flat optics with dispersion-engineered metasurfaces

Nature Reviews Materials, 2020
W. T. Chen, A. Zhu, F. Capasso
semanticscholar   +1 more source

Interaction of an Optical Soliton with a Dispersive Wave

Physical Review Letters, 2005
Scattering of a dispersive wave by optical solitons is studied experimentally in photonic crystal fibers in cases when the soliton and the dispersive wave have either identical or orthogonal polarization states. Observations of new resonant frequencies are reported. The experimental results are compared to numerical simulations and predictions from the
Efimov, A.   +7 more
openaire   +4 more sources

Optical activity and spatial dispersion

Physical Review E, 1997
Constitutive equations for the description of optical activity are considered in the scheme of anisotropic nonconducting materials whose response is memory dependent and nonlocal. Attention is then restricted to models containing spatial derivatives up to second order. A dissipation principle is adopted in the form of the Clausius inequality for cycles
openaire   +3 more sources

Quantum optics of dispersive dielectric media

Physical Review A, 2003
We quantize the electromagnetic field in polar medium starting with the fundamental equation of motion. In our model the medium is described by a Lorenz-type dielectric function \epsilon(r, \omega) appropriate e.g. for ionic crystals, metals and inert dielectrics. There are no restrictions on the spatial behavior of the dielectrc function, i.e.
openaire   +4 more sources

On dispersion relations for optical media with spatial dispersion

Optics and Spectroscopy, 2004
An estimate of the ratio of the contributions of relativistic and nonrelativistic factors to the Kramers-Kronig relations for a medium with spatial dispersion is performed in a form taking into account the relativistic requirement of the finiteness of the velocity of propagation of a signal.
openaire   +2 more sources

Optical Dispersion by Wannier Excitons

Physical Review Letters, 1995
An analytical expression of the complex dielectric constant of Wannier excitons is obtained, which includes exactly the contributions of all bound and unbound states. It allows an improved description of the excitonic influence on the optical properties of semiconductors near the band gap, especially with respect to dispersion effects.
openaire   +4 more sources

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