Prof. James B. Cole
Professor at National Academy of Sciences
SPIE Involvement:
Author
Area of Expertise:
numerical simulation and mathematical modeling , computational photonics , computational electromagnetics , high precision FDTD , photonic crystals , Mie theory
Websites:
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 (9)

Proceedings Article | 11 September 2019 Presentation + Paper
Proceedings Volume 11103, 111030O (2019) https://doi.org/10.1117/12.2529518
KEYWORDS: Finite-difference time-domain method, Refractive index, Algorithm development, Differential equations, Dielectrics, Superposition, Mie scattering

Proceedings Article | 9 September 2019 Presentation + Paper
S. Banerjee, I. Takayanagi, K. Mori, J. Nakamura, J. Cole, T. Hoshino, M. Itoh
Proceedings Volume 11105, 111050T (2019) https://doi.org/10.1117/12.2530158
KEYWORDS: Refractive index, Thin films, Reflectivity, Rhodamine B, Multilayers, Finite-difference time-domain method, Germanium, Optimization (mathematics), CMOS sensors

SPIE Press Book | 8 June 2017
KEYWORDS: Algorithm development, Refractive index, Oscillators, Maxwell's equations, Multilayers, Electromagnetism, Metals, Differential equations, 3D modeling, Finite-difference time-domain method

Proceedings Article | 10 September 2014 Paper
Proceedings Volume 9163, 91630A (2014) https://doi.org/10.1117/12.2061838
KEYWORDS: Finite-difference time-domain method, Maxwell's equations, Mie scattering, Photonics, Computer simulations, Free space, 3D modeling, Visualization, Scattering, Phase velocity

Proceedings Article | 5 September 2014 Paper
Proceedings Volume 9187, 918708 (2014) https://doi.org/10.1117/12.2061920
KEYWORDS: Finite-difference time-domain method, Molecules, Numerical stability, Light wave propagation, Maxwell's equations, Photonics, Computer simulations, Phase velocity, Differential equations, Current controlled current source

Showing 5 of 9 publications
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