0000000000525832

AUTHOR

John Weiner

showing 2 related works from this author

Atomic diffraction from nanostructured optical potentials

2002

We develop a versatile theoretical approach to the study of cold-atom diffractive scattering from light-field gratings by combining calculations of the optical near-field, generated by evanescent waves close to the surface of periodic nanostructured arrays, together with advanced atom wavepacket propagation on this optical potential.

DiffractionPhysicsLength scaleCondensed Matter::Quantum GasesScatteringbusiness.industryAtomic Physics (physics.atom-ph)Wave packetPhysics::OpticsFOS: Physical sciencesNear and far fieldPolarization (waves)Atomic and Molecular Physics and OpticsPhysics - Atomic PhysicsOpticsUltracold atomAtomPhysics::Atomic PhysicsAtomic physicsbusiness
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Modelling resonant coupling between microring resonators addressed by optical evanescent waves

2004

In this paper we study the properties of microring resonator structures fabricated with high-index-of-refraction dielectric material. These structures concentrate light and can produce very strong optical potential gradients. They are of great interest for the trapping, manipulation and transport of cold atoms near surfaces. The study consists of two parts: in the first part we investigate the symmetry properties of the resonator response for simple models of the microring structures. In the second part we present detailed numerical calculations of the actual spectra for realistic microfabricated structures. We employ the direct space integral equation method (DSIEM). This method, based on …

CouplingNanostructureMaterials sciencebusiness.industryMechanical EngineeringAb initioPhysics::OpticsBioengineeringGeneral ChemistryDielectricSymmetry (physics)Spectral lineVolume integralResonatorOpticsMechanics of MaterialsOptoelectronicsGeneral Materials ScienceElectrical and Electronic EngineeringbusinessNanotechnology
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