Prof. James B. Cole
Professor at
SPIE Involvement:
Area of Expertise:
numerical simulation and mathematical modeling , computational photonics , computational electromagnetics , high precision FDTD , photonic crystals , Mie theory
Profile Summary

Currently I am a professor at the University of Tsukuba in Japan.

I graduated from the University of Maryland, PhD physics (high energy and particle physics), and after a post-doctorate at the NASA Goddard Space Flight Center (Laboratory for High Energy Astrophysics) I went to the Army Research Laboratory (ARL) , and then the Naval Research Laboratory (NRL). At ARL I developed simulated annealing programs for pattern recognition, and at NRL I began my current research.

My main research is to develop high precision numerical algorithms to simulate light propagation in complicated structures with subwavelength features, such as photonic crystals. I specialize in the finite difference time domain (FDTD) method. Using what are called nonstandard (NS) finite difference (FD) models I have succeeded in greatly increasing the accuracy of FDTD on a coarse numerical grid.

My main focus is to develop high precision algorithms with good numerical stability on coarse numerical grids, but which are simple enough to run on small computers.
Publications (7)

PROCEEDINGS ARTICLE | September 10, 2014
Proc. SPIE. 9163, Plasmonics: Metallic Nanostructures and Their Optical Properties XII
KEYWORDS: Finite-difference time-domain method, Visualization, Scattering, Free space, Computer simulations, 3D modeling, Photonics, Mie scattering, Phase velocity, Maxwell's equations

PROCEEDINGS ARTICLE | September 5, 2014
Proc. SPIE. 9187, The Nature of Light: Light in Nature V
KEYWORDS: Finite-difference time-domain method, Molecules, Computer simulations, Photonics, Differential equations, Phase velocity, Numerical stability, Light wave propagation, Current controlled current source, Maxwell's equations

PROCEEDINGS ARTICLE | September 26, 2013
Proc. SPIE. 8816, Nanoengineering: Fabrication, Properties, Optics, and Devices X
KEYWORDS: Finite-difference time-domain method, Scattering, 3D modeling, Photonics, Differential equations, Mie scattering, Algorithm development, Phase velocity, Standards development, Maxwell's equations

PROCEEDINGS ARTICLE | December 23, 2002
Proc. SPIE. 4832, International Optical Design Conference 2002
KEYWORDS: Diffraction, Optical design, Finite-difference time-domain method, Diffractive optical elements, Fourier transforms, Near field, Binary data, Astatine, Near field optics, Diffraction gratings

Proc. SPIE. 4183, 24th International Congress on High-Speed Photography and Photonics
KEYWORDS: Diffraction, Finite-difference time-domain method, Particles, Optical testing, Mie scattering, Velocity measurements, Electromagnetism, Astatine, Expectation maximization algorithms, Maxwell's equations

Showing 5 of 7 publications
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