Kyung Ik Sim

1 Introduction Historically, orbital angular momentum (OAM), a degree of freedom in solids, has been considered negligible due to orbital quenching by crystal fields.[1-3] However, the importance of OAM in solid-state physics has been highlighted by recent findings of the orbital Hall effect (OHE),[4-9] orbital magnetism[10-12] (or altermagnetism[13-15]), and orbital Rashba effect.[16-18] Despite the importance of OAM, few experimental tools are available to access it, particularly in the...

Abstract Light-matter interaction simultaneously alters both the original material and incident light. Light not only reveals material details but also activates coupling mechanisms. The coupling has been demonstrated mechanically, for instance, through the patterning of metallic antennas, resulting in the emergence of plasmonic quasiparticles and enabling wavefront engineering of light via the generalized Snell’s law.

Conflict of Interest The authors declare no conflict of interest. Supporting Information Filename Description adma202413484-sup-0001-SuppMat.docx2.8 MB Supporting Information References 1, , , , , , , , Nat. Rev. Mater. 2016, 1, 16055. 2, , , , , , , , , , , , , , Sci. Adv. 2017, 3, 1603113. 3, , , , , , , , Small 2018, 14, 1801483. 4, , , , , , , , , , Adv. Mater. 2017, 29, 1606034. 5, , , , , Light: Sci. Appl. 2021, 10, 72. 6, , , , Nat. Rev. Mater. 2022, 7, 449. 7, , , , , , , , , Nat. Phys. 2016, 12, 139.