Results 11 to 20 of about 2,856 (27)

Isotropic-medium three-dimensional cloaks for acoustic and electromagnetic waves

open access: yes, 2012
We propose a generalization of the two-dimensional eikonal-limit cloak derived from a conformal transformation to three dimensions. The proposed cloak is a spherical shell composed of only isotropic media; it operates in the transmission mode and ...
Blair D. E.   +5 more
core   +1 more source

Quantum Reflection as a New Signature of Quantum Vacuum Nonlinearity [PDF]

open access: yes, 2013
We show that photons subject to a spatially inhomogeneous electromagnetic field can experience quantum reflection. Based on this observation, we propose quantum reflection as a novel means to probe the nonlinearity of the quantum vacuum in the presence ...
Gies, Holger   +2 more
core   +3 more sources

Inverse Transformation Optics and Reflection Analysis for Two-Dimensional Finite Embedded Coordinate Transformation

open access: yes, 2009
Inverse transformation optics is introduced, and used to calculate the reflection at the boundary of a transformation medium under consideration. The transformation medium for a practical device is obtained from a two-dimensional (2D) finite embedded ...
He, Sailing, Jin, Yi, Zhang, Pu
core   +1 more source

A General Class of Metamaterial Transformation Slabs [PDF]

open access: yes, 2010
In this paper, we apply transformation-based optics to the derivation of a general class of transparent metamaterial slabs. By means of analytical and numerical full-wave studies, we explore their image displacement/formation capabilities, and establish ...
Andrea Alù   +5 more
core   +4 more sources

Signature of strong atom-cavity interaction on critical coupling

open access: yes, 2010
We study a critically coupled cavity doped with resonant atoms with metamaterial slabs as mirrors. We show how resonant atom-cavity interaction can lead to a splitting of the critical coupling dip.
Born M   +12 more
core   +1 more source

Role of beam propagation in Goos-H\"{a}nchen and Imbert-Fedorov shifts [PDF]

open access: yes, 2008
We derive the polarization-dependent displacements parallel and perpendicular to the plane of incidence, for a Gaussian light beam reflected from a planar interface, taking into account the propagation of the beam.
A. Aiello   +15 more
core   +2 more sources

Single-beam dielectric-microsphere trapping with optical heterodyne detection

open access: yes, 2018
A technique to levitate and measure the three-dimensional position of micrometer-sized dielectric spheres with heterodyne detection is presented. The two radial degrees of freedom are measured by interfering light transmitted through the microsphere with
Blakemore, Charles P.   +3 more
core   +1 more source

Nonlinearity Induced Critical Coupling [PDF]

open access: yes, 2013
We study a critically coupled system (Opt. Lett., \textbf{32}, 1483 (2007)) with a Kerr-nonlinear spacer layer. Nonlinearity is shown to inhibit null-scattering in a critically coupled system at low powers.
Gopal, Achanta Venu   +2 more
core   +1 more source

Critical dynamical properties of a first-order dissipative phase transition

open access: yes, 2017
We theoretically investigate the critical properties of a single driven-dissipative nonlinear photon mode. In a well-defined thermodynamical limit of large excitation numbers, the exact quantum solution describes a first-order phase transition in the ...
Casteels, Wim   +2 more
core   +1 more source

Optically bistable driven-dissipative Bose-Hubbard dimer: Gutzwiller approaches and entanglement

open access: yes, 2017
We theoretically examine the driven-dissipative Bose-Hubbard dimer in the optical bistable regime. Various approximation schemes based on a Gutzwiller mean field decoupling are applied and compared.
Casteels, Wim, Wouters, Michiel
core   +1 more source

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