Abstract
The transient analysis of electromagnetic problems is important in the designing of plasmonic devices. It is useful for clarifying physical phenomena with extremely short timescales, because transient response affects the device performance. A time-domain computational technique is proposed for the transient analysis of electromagnetic problems with nanostructures. Our method is based on boundary integral equations in the complex frequency domain and fast inverse Laplace transforms. The advantage of our method is that the objects can be modeled by surface structure, dispersive media can be easily considered, computational error analysis is simple, and the electromagnetic field at the desired observation time can be obtained.
Highlights
RECENTLY, a helicity-dependent all-optical magnetic switching has attracted attention for ultra-fast magnetic recording systems [1,2,3]
Many plasmonic devices are designed using properties based on frequency response, it is important to investigate the characteristics of transient response in the helicity-dependent all-optical magnetic switching
The boundary integral equation method is applied for solving the complex frequency domain problems
Summary
RECENTLY, a helicity-dependent all-optical magnetic switching has attracted attention for ultra-fast magnetic recording systems [1,2,3]. We proposed the novel computational method as an alternative technique to FDTD for designing plasmonic devices. The boundary integral equation method is applied for solving the complex frequency domain problems.
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