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Search Publications by: Garnett W. Bryant (Fed)

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Displaying 101 - 125 of 170

Artificial Molecules

November 1, 2002
Author(s)
W Jaskolski, Garnett W. Bryant, J Planelles, M Zielinski
Double semiconductor nanocrystals, called artificial molecules by analogy to artificial atoms (quantum dots), are investigated. Empirical tight-binding and k.p theories are used to obtain electronic structure, charge density distributions and optical

An Improved Nonlinear Optical Pulse Propagation Equation

September 1, 2002
Author(s)
M Trippenbach, W Wasilewski, P Kruk, Garnett W. Bryant, G Fibich, Y B. Band
A new equation for self-focusing of extremely focused short-duration intense pulses is derived. This method can yield results to all orders of diffraction and dispersion with nonlinearity present, including the self-consistent derivation of nonlinear

Designing Neutral-Atom Nanotraps With Integrated Optical Waveguides

April 1, 2002
Author(s)
J P. Burke, S G. Chu, Garnett W. Bryant, Carl J. Williams, Paul S. Julienne
Integrated optical structures offer the intriguing potential of compact, reproducible waveguide arrays, rings, Y-junctions, etc, that could be used to design evanescent field traps to transport, store, and interact atoms in networks as complicated as any

Local Imaging of Photonic Structures: Image Contrast From Impedance Mismatch

March 1, 2002
Author(s)
A L. Campillo, Julia W. Hsu, Garnett W. Bryant
Photonic structures constructed from square arrays of air holes in Si 3N x membranes are locally imaged by near-field optical microscopy in illumination mode. Holes with diameters smaller than and larger than the wavelength of light are investigated

Spontaneous Emission in Microcavity Electrodynamics

March 1, 2002
Author(s)
A Rahmani, Garnett W. Bryant
We present a general, semimicroscopic, self-consistent treatment of spontaneous emission for a two-level atom in a dielectric microcavity with arbitrary shape. Both lossless and absorbing media are considered. Our spherical and cubic cavities. We discuss

Parallelization and Visualization of Computational Nanotechnology LCAO Method

February 1, 2002
Author(s)
J C. Franiatte, Steven G. Satterfield, Garnett W. Bryant, J E. Devaney
Accurate atomic-scale quantum theory of nanostructures and nanosystems fabricated from nanostructures enables precision metrology of these nanosystems and provides the predictive, precision modeling tools needed for engineering these systems for

Accelerating Scientific Discovery through Computation and Visualization II

January 1, 2002
Author(s)
J S. Sims, W L. George, S G. Satterfield, H K. Hung, J G. Hagedorn, P M. Ketcham, T J. Griffin, S A. Hagstrom, J C. Franiatte, Garnett W. Bryant, W Jaskolski, N S. Martys, C E. Bouldin, V Simmons, O P. Nicolas, J A. Warren, B A. Am ende, J E. Koontz, B J. Filla, V G. Pourprix, S R. Copley, R B. Bohn, A P. Peskin, Y M. Parker, J E. Devaney

Artificial Molecules

January 1, 2002
Author(s)
W Jaskolski, Garnett W. Bryant, J Planelles, M Zielinski

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