Luk Yanchuk B, Vasilyak L M, Pecherkin V Ya, Vetchinin S P, Fortov V E, Wang Z B, Paniagua-Domínguez R, Fedyanin A A
Faculty of Physics, Lomonosov Moscow State University, Moscow, Russia, 119991.
Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow, Russia, 125412.
Sci Rep. 2021 Dec 6;11(1):23453. doi: 10.1038/s41598-021-01644-1.
Resonant scattering of electromagnetic waves is a widely studied phenomenon with a vast range of applications that span completely different fields, from astronomy or meteorology to spectroscopy and optical circuitry. Despite being subject of intensive research for many decades, new fundamental aspects are still being uncovered, in connection with emerging areas, such as metamaterials and metasurfaces or quantum and topological optics, to mention some. In this work, we demonstrate yet one more novel phenomenon arising in the scattered near field of medium sized objects comprising high refractive index materials, which allows the generation of colossal local magnetic fields. In particular, we show that GHz radiation illuminating a high refractive index ceramic sphere creates instant magnetic near-fields comparable to those in neutron stars, opening up a new paradigm for creation of giant magnetic fields on the millimeter's scale.
电磁波的共振散射是一种被广泛研究的现象，具有广泛的应用范围，涵盖了从天文学、气象学到光谱学和光学电路等完全不同的领域。尽管几十年来一直是深入研究的主题，但与超材料和超表面、量子和拓扑光学等新兴领域相关的新的基本方面仍在不断被发现。在这项工作中，我们展示了在包含高折射率材料的中等尺寸物体的散射近场中出现的又一种新现象，该现象能够产生巨大的局部磁场。具体而言，我们表明，照射高折射率陶瓷球的吉赫兹辐射会产生与中子星相当的即时磁近场，为在毫米尺度上产生强磁场开辟了新的范例。
