Meta-OpticsMie Resonancessubwavelength localizationIn nanophotonics, subwavelength localization of light is usually associated with plasmonics, the collective excitation of electrons and electromagnetic waves at metallic surfaces. Recent developments in the physics of high-index dielectric nanoparticles, however, ...
We fabricated the LWIR meta-optics in an all-silicon platform, with a set of devices shown in Fig.2a. We pattern the Si wafer with laser direct-write lithography and etch the patterns using deep reactive ion etching (details in Methods). We note that patterning can also be acomplished wit...
With its exceptionally high refractive index exceeding 5, PbTe is ideally suited for creating dielectric meta-atoms supporting high-quality Mie resonances22. The nanocrystalline nature of PbTe also facilitates monolithic integration on the low-index CaF2 substrate (n = 1.4). The large index ...
Recent progress in nanoscale optical physics is associated with the development of a new branch of nanophotonics exploring strong Mie resonances in dielect... MLX Ullah - 《Nanotechnology》 被引量: 0发表: 2018年 加载更多来源期刊 Science Advances 研究点推荐 nanophotonics Metaform optics freeform opt...
All‐dielectric nanoparticles (NPs) with high (>3.0) or moderate (1.7–3.0) refractive indices have become fundamental to meta‐optics, as they enable low‐loss, low‐heating, and quenching‐free magnetodielectric Mie resonances, which are difficult to achieve by use of plasmonic counterparts. ...
然而当物质位于光学微腔内并与之耦合时,电子的自发辐射过程就可以被逆转,从而导致光子在腔内的重新吸收和发射。这一过程会引起拉比振荡(Rabi oscillation),即电子以拉比角频率2g在基态和激发态之间振荡,其中g是跃迁偶极矩与微腔模式之间的耦合强度。当该耦合强度高于材料和微腔的衰减速率时,我们便称之为强耦合[1]...
We do not discount the value of using Mie scattering, which can have much lower losses and exhibit magnetic field resonances, but we expect more interactions between conducting neighbors as compared to dielectric resonant scatterers because of coupling through mutual inductance as well as scattering. ...
Mie resonance-enhanced light absorption in periodic silicon nanopillar arrays Mie-resonances in vertical, small aspect-ratio and subwavelength silicon nanopillars are investigated using visible bright-field 碌-reflection measurements... FJ Bezares,JP Long,OJ Glembocki,... - 《Optics Express》 被引量:...
a direct reflection wave can be explained by the Fresnel-Airy reflection formula based on the first order analytic effective medium approximation (Section 6 of Supplementary Materials) and in-direct reflection wave can be modeled as scattering from TM (plasmonic) and TE (Mie-...
the high-index nanobeams support optical Mie-like41resonances that are associated with the excitation of the leaky optical modes of such nanostructures26,42. The resonances in the Ge beams are sufficiently strong to capture virtually all of the incident light with hardly any of the power flow li...