Abstract
Many nanophotonic devices rely on the excitation of photonic resonances to enhance light-matter interaction. The understanding of the resonances is therefore of a key importance to facilitate the design of such devices. These resonances may be analyzed by use of the quasi-normal mode (QNM) theory. Here, we illustrate how QNM analysis may help study and design resonant nanophotonic devices. We will in particular use the QNM expansion of far-field quantities based on Riesz projection to design optical antennas.
Highlights
Nanophotonic devices allow to control and tailor lightmatter interactions at the nanoscale
Many nanophotonic devices rely on the excitation of photonic resonances to enhance light-matter interaction
We will in particular use the quasi-normal mode (QNM) expansion of far-field quantities based on Riesz projection to design optical antennas
Summary
Nanophotonic devices allow to control and tailor lightmatter interactions at the nanoscale. Many nanophotonic devices rely on the excitation of photonic resonances to enhance light-matter interaction. These resonances may be analyzed by use of the quasi-normal mode (QNM) theory. We illustrate how QNM analysis may help study and design resonant nanophotonic devices.
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