This review is devoted to a discussion of new (and often unexpected) aspects of the old problem of elastic light scattering by small metal particles, whose size is comparable to or smaller than the thickness of the skin layer. The main focus is on elucidating the physical grounds for these new aspects. It is shown that, in many practically important cases, the scattering of light by such particles, despite their smallness, may have almost nothing in common with Rayleigh scattering. So-called anomalous scattering and absorption, as well as Fano resonances, including unconventional (associated with the excitation of longitudinal electromagnetic oscillations) and directional Fano resonances, observed only at a small solid angle, are discussed in detail. The review contains a Mathematical Supplement, which includes a summary of the main results of the Mie theory and a discussion of some general properties of scattering coefficients. In addition to being of purely academic interest, the phenomena considered in this review can find wide applications in biology, medicine, pharmacology, genetic engineering, imaging of ultra-small objects, ultra-high-resolution spectroscopy, information transmission, recording, and processing as well as many other applications and technologies.

Keywords: Mie resonances, Fano resonances, subwavelength optics, nanoparticles PACS: 42.25.Fx, 42.70.−a, 78.67.−n (all) DOI: 10.3367/UFNe.2021.01.038924 URL: https://ufn.ru/en/articles/2022/1/c/ 000788597000003 2-s2.0-85123091671 2022PhyU...65...40T Citation: Tribelsky M I, Miroshnichenko A E "Resonant scattering of electromagnetic waves by small metal particles" Phys. Usp. 65 40–61 (2022) BibTexBibNote ® (generic)BibNote ® (RIS)MedlineRefWorks Received: 17th, August 2020, revised: 22nd, January 2021, accepted: 29th, January 2021 Оригинал: Трибельский М И, Мирошниченко А Е «Резонансное рассеяние электромагнитных волн малыми металлическими частицами: новый взгляд на старую проблему» УФН 192 45–68 (2022); DOI: 10.3367/UFNr.2021.01.038924