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Search Publications by: Garnett W. Bryant (Fed)

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Displaying 126 - 150 of 176

Designing Quantum Dots and Quantum-Dot Solids

October 1, 2001
Author(s)
Garnett W. Bryant, W Jaskolski
To design nanocrystal nanosystems a theory for nanocrystals is needed which can be applied to nanocrystals with atomic-scale variations in composition, structure and shape. We present an empirical tight-binding theory for nanocrystal heteroanostructures

On Boundary Condition-Induced States in Low-Dimensional Semiconductor Structures

July 1, 2001
Author(s)
W Jaskolski, R -. Oszwaldowski, Garnett W. Bryant
We examine different solutions of multi-band k.p Hamiltonians. We refer mainly to the intrinsic surface states, with energies in the forbidden energy gap, that were proposed recently for bare and capped nanocrystals. We review analytical and numerical

Modeling Illumination-Mode Near-Field Optical Microscopy of Au Nanoparticles

March 1, 2001
Author(s)
A Liu, A Rahmani, Garnett W. Bryant, Lee J. Richter, Stephan J. Stranick
We present a theoretical analysis of near-field scanning optical microscopy (NSOM) images of small Au particles made in illumination mode. We model the metal-coated fiber tip as a thin disk consisting of a glass core and an aluminum coating. An external

Newton's Rings in Near-Field Optics

January 1, 2001
Author(s)
Lori S. Goldner, Jeeseong Hwang, Garnett W. Bryant, Michael J. Fasolka, P Absil, J V. Hryniewicz, F G. Johnson, H Shen, P T. Ho
We show how Newton's rings manifest themselves in near-field scanning optical microscopy and discuss how this effect can be used with topographic imaging to measure correlated roughness of thin films. In conventional optics, transmission through a thin

Trapping Atoms With Evanescent Light Fields From Integrated Optical Waveguides

January 1, 2001
Author(s)
J P. Burke, S T. Chu, Garnett W. Bryant, Carl J. Williams, P S. Julience
We theoretically investigate three approaches to trapping atoms above linear integrated optical waveguides. A two-color scheme balances the decaying evanescent fields of red-and blue-detuned light to produce a potential minimum above the guide. A one-color

Contribution of Evanescent Waves to the Far-Field: the Atomic Point of View

April 1, 2000
Author(s)
A Rahmani, Garnett W. Bryant
Evanescent modes of the electromagnetic field are seldom invoked in conventional far-field optics, as their contribution far from the source (say a few wavelengths) is negligible. Contradicting this fact, in recent theoretical works, based on a particular
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