Title : Nanoparticles as a tool to tailor electromagnetic field at subwavelength scales
Abstract:
Resonant light scattering by nanoparticles provides a unique opportunity to concentrate a high-amplitude electromagnetic field in a subwavelength area of space as well as to tailor and control its pattern. In addition to purely academic interest, this is extremely important for numerous applications ranging from medicine and biology to telecommunication and data processing. Despite more than a hundred years of extensive study, the problem is still far from completion. A review of new results in this field is presented in this contribution. In many cases, despite the smallness of the scattering particles, their light scattering has very little in common with the conventional Rayleigh case. New, counterintuitive effects, especially those related to violating the quasi-static description of the scattering occurring at the action of (ultra)short laser pulses, are pointed out, inspected, discussed, and classified.
The author acknowledges the financial support of the Russian Science Foundation (Project No. 21-12-00151).
Audience Take Away Notes:
- The talk gives new insights into the old problem of light scattering by particles. The results may be used as grounds for developing new nanotechnologies and metamaterials
- The discussed results are interesting both from an academic viewpoint and for practical applications
- Though the discussed results are not directly related to technological processes, they open the door to new technologies
