2019
DOI: 10.1002/adom.201900447
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Tailored Nonlinear Anisotropy in Mie‐Resonant Dielectric Oligomers

Abstract: to their plasmonic counterparts, alldielectric nanoparticles do not suffer from nonradiative losses, and they allow novel functionalities. Owing to a strong localfield confinement in the volume of such nanostructures, as well as high stability under strong laser radiation, Mie-resonant nanoparticles are very attractive for nonlinear nanoscale photonics. [10][11][12][13] As an example, enhanced nonlinear optical harmonic generation has been predicted and demonstrated for a number of alldielectric systems, rangi… Show more

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Cited by 19 publications
(16 citation statements)
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“…5,79,80 In this section we discuss selection rules of exemplary multi-photon processes when using structured light for excitation. 81,82 We will show how OAMs may be used to induce second-harmonic generation in centrosymmetric oligomers. Such an experiment will verify the transfer of angular momentum between the photons and the oligomer.…”
Section: Multi-photon Processesmentioning
confidence: 99%
“…5,79,80 In this section we discuss selection rules of exemplary multi-photon processes when using structured light for excitation. 81,82 We will show how OAMs may be used to induce second-harmonic generation in centrosymmetric oligomers. Such an experiment will verify the transfer of angular momentum between the photons and the oligomer.…”
Section: Multi-photon Processesmentioning
confidence: 99%
“…All-dielectric resonant metaphotonics, [26] fortunately, gives a hint to this quest. Manipulation of strong electromagnetic Mietype resonances in high refractive index nanostructures, for example, considerably amplifies linear [11] and nonlinear [27][28][29][30][31] optical responses of materials. Another advantage of TMDCs is their excitonic nature of dielectric response, [16,32] which greatly enhances light-matter interaction.…”
Section: Introductionmentioning
confidence: 99%
“…Unlike second-order effects, third-order nonlinearities are not nulled in centrosymmetric environments, making both crystalline and amorphous media of equal interest to study THG. Explored high-index and mid-index dielectric materials for THG at subwavelength volumes include Si, , Ge, , AlGaAs, TiO 2 , and ZnO, whose basic optical properties are summarized in Table . For cubic crystals belonging to the 4̅3 m point group, such as the first three materials listed, there are two independent elements of χ (3) for the THG process, while for their amorphous (isotropic) versions, there is only one .…”
Section: Third Harmonic Generationmentioning
confidence: 99%