Abstract

The scattering of electromagnetic pulses is described using a non-singular boundary integral method to solve directly for the field components in the frequency domain, and Fourier transform is then used to obtain the complete space-time behavior. This approach is stable for wavelengths both small and large relative to characteristic length scales. Amplitudes and phases of field values can be obtained accurately on or near material boundaries. Local field enhancement effects due to multiple scattering of interest to applications in microphotonics are demonstrated.

© 2017 Optical Society of America

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References

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Supplementary Material (6)

NameDescription
» Visualization 1       Animation of total and scattered electric field amplitudes and field vectors in the yz-plane due to scattering of the plane wave pulse by a perfect electrical conducting sphere.
» Visualization 2       Animation similar to Visualization 1 but for a perfect electrical conducting bowl.
» Visualization 3       Animation similar to Visualization 1 but with the focusing effect increasing the field amplitude by up to about 50%.
» Visualization 4       Animation similar to Visualization 3 but with the addition of a sphere positioned near the focus of the bowl.
» Visualization 5       Animation similar to Visualization 1 but for a perfect electrical conducting nano-rod.
» Visualization 6       Animation similar to Visualization 1 but for a dielectric nano-rod.

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Figures (9)

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Equations (10)

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