All-Dielectric Resonant Meta-Optics Lightens up

Abstract

All-dielectric resonant nanophotonics is a rapidly developing research field driven by its exceptional application potential for low-loss nanoscale metadevices. The tight confinement of the local electromagnetic fields and interferences in resonant photonic nanostructures can boost many optical effects, thus offering novel opportunities for the subwavelength control of light-matter-interactions. Active, light-emitting nanoscale structures are of particular interest, as they offer unique opportunities for novel types of light sources and nanolasers. Here, we review the latest advances in this recently emerged and rapidly growing field of active dielectric resonant nanophotonics enabled by dipolar and multipolar Mie-type resonances. More specifically, we discuss how to employ dielectric nanostructures for the resonant control of emission from quantum dots, two-dimensional transition metal dichalcogenides, and halide perovskites. We also foresee various future research directions and applications of active all-dielectric resonant nanostructures including but not limited to lasing in topologically robust systems, light-matter interactions beyond the electric dipole limit, light-emitting surfaces, and tunable active metadevices.

Integration of two-dimensional transition metal dichalcogenides with Mie-resonant dielectric nanostructures

“…Apart from wavefront shaping, Mie-resonant dielectric metasurfaces were recently also extensively employed to enhance and tailor various light-matter interaction processes. By concentrating the electromagnetic near-fields inside and near the individual nanoresonators, strong local field enhancements can be obtained in suitably designed metasurfaces, which was shown to allow for enhancing, e.g., nonlinear optical effects [72] or spontaneous emission processes [1,73]. Further tailoring of the geometry provides additional control of the resonance properties.…”

“…Active meta-optics [1] is gaining new direction and momentum with the emergence of a novel class of nanophotonic systems consisting of Mie-resonant dielectric nanostructures integrated with single or few layers of transition metal dichalcogenides (2D-TMDs). For decades, TMDs have been in use as lubricant material in technical applications due to their low friction, originating from the weak Van der Waals forces between their individual layers.…”

All-optical switch and logic gates based on hybrid silicon-Ge2Sb2Te5 metasurfaces

“…Those socalled hybrid MMs can bring novel functions with active control, and have become a rising branch of MMs. Similarly, all-dielectric active hybrid MMs with low loss also need to be explored [26]. Up to now, liquid crystal [27,28] and PCM Ge2Sb2Te5 (GST) [29][30][31] have been integrated as efficient active dielectrics.…”

Light-field enhancement on thin and ultra-thin high-index dielectric slabs with rectangular nano-pits

“…Sub-wavelength gratings offer a great richness of optical properties for filtering, absorption and local amplification of light coupled in free-space, and, depending on whether the material is dielectric or metallic, allow getting different behaviors to address wanted specifications [1]. All-dielectric metamaterials and metasurfaces have especially met a renewed and increasing attention from the photonics community, in the current decade, because of their lossless optical properties and a greater plurality of electrical and magnetic modes [2], by comparison to surface-plasmon-based structures, especially regarding efficient Mie or Fano resonances [3] and the so-called bound states in the continuum [4].…”

“…Regarding light localization in small accessible volumes (of subwavelength scale), plasmonic structures had attracted a preponderant interest by the past, but lossless all-dielectric platforms, like the ones based on Fano resonances (possibly tunable [10]), have come back to the front-stage [3,20] and are complementary to nonplasmonic nano-antennas [21]. Sharp Fabry-Perot resonances occurring on thin high-index slabs, containing * jerome.le-perchec@cea.fr is only half that of the slab.…”