Efficient Computation of Power, Force, and Torque in BEM Scattering Calculations
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Johnson_Efficient computation.pdf
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Author(s)
Reid, McMahon Thomas Homer
Johnson, Steven G
Date Issued
June 2015
Journal
IEEE Transactions on Antennas and Propagation
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Citation
Reid, M. T. Homer, and Steven G. Johnson. “Efficient Computation of Power, Force, and Torque in BEM Scattering Calculations.” IEEE Transactions on Antennas and Propagation 63, no. 8 (August 2015): 3588–3598.
Version
Author's final manuscript
Abstract
We present concise, computationally efficient formulas for several quantities of interest-including absorbed and scattered power, optical force (radiation pressure), and torque-in scattering calculations performed using the boundary-element method (BEM) [also known as the method of moments (MoM)]. Our formulas compute the quantities of interest directly from the BEM surface currents with no need ever to compute the scattered electromagnetic fields. We derive our new formulas and demonstrate their effectiveness by computing power, force, and torque (PFT) in a number of example geometries. Free, open-source software implementations of our formulas are available for download online.
MIT Department
Massachusetts Institute of Technology. Department of Mathematics
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Creative Commons Attribution-Noncommercial-Share Alike
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DOI of Published Version
https://doi.org/10.1109/tap.2015.2438393
