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, ...
Many concepts of all-dielectric resonant nanophotonics are driven by the idea to employ subwavelength dielectric nanoparticles with Mie resonances as “meta-atoms” for creating highly efficient optical metasurfaces and metadevices [4]. Precise engineering of the optical resonances results in many ...
meta‐opticscolloidsseleniumself‐assemblysoftnanophotonicsAll‐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 ...
Metasurfaces are composed of arrays of optical antennas with a subwavelength thickness [28,29,30]. The optical antennas can be metallic ones that support localized surface plasmon resonances or dielectric ones that support Mie resonances, thus significantly boosting the local field [31,32,33,34,35...
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 ...
High-quality (Q)-factor optical resonators with extreme temporal coherence are of both technological and fundamental importance in optical metrology, continuous-wave lasing, and semiconductor quantum optics. Despite extensive efforts in designing high-Q resonators across different spectral regimes, the exper...
ISSN1749-4885(print) Sign up for theNature Briefingnewsletter — what matters in science, free to your inbox daily. Email address Sign up I agree my information will be processed in accordance with theNatureand Springer Nature LimitedPrivacy Policy....
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]...
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...
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-li...