Multistate Tuning of Third Harmonic Generation in Fano‐Resonant Hybrid Dielectric Metasurfaces

  title={Multistate Tuning of Third Harmonic Generation in Fano‐Resonant Hybrid Dielectric Metasurfaces},
  author={Omar A. M. Abdelraouf and Aravind P. Anthur and Zhaogang Dong and Hailong Liu and Qian Wang and Leonid A. Krivitsky and Xiao Renshaw Wang and Qi Jie Wang and Hong Liu},
  journal={Advanced Functional Materials},
Hybrid dielectric metasurfaces have emerged as a promising approach to enhancing near field confinement and thus high optical nonlinearity by utilizing low loss dielectric rather than relatively high loss metallic resonators. A wider range of applications can be realized if more design dimensions can be provided from material and fabrication perspectives to allow dynamic control of light. Here, tunable third harmonic generation (THG) via hybrid metasurfaces with phase change material Ge2Sb2Te5… 
9 Citations

Dynamically tunable second-harmonic generation using hybrid nanostructures incorporating phase-change chalcogenides

Abstract Nonlinear metasurfaces with high conversion efficiencies have been vastly investigated. However, strong dynamic tunability of such devices is limited in conventional passive plasmonic and

Reversible Tuning of Mie Resonances in the Visible Spectrum.

This paper designed and experimentally demonstrated dielectric nanodisc arrays exhibiting reversible tunability of Mie resonances in the visible spectrum and achieved tunability by exploiting phase transitions in Sb2S3nanodiscs.

Recent Advances in Tunable Metasurfaces: Materials, Design, and Applications.

Metasurfaces, a two-dimensional (2D) form of metamaterials constituted by planar meta-atoms, exhibit exotic abilities to tailor electromagnetic (EM) waves freely. Over the past decade, tremendous

Phase-Change Metasurfaces for Dynamic Image Display and Information Encryption

A Sb 2 S 3 phase-change metasurface platform that lowes active manipulation of both amplitude and phase is demonstrated, which suggests an exciting direction for modern cryptography and security applications.

Broadband-Tunable Third-Harmonic Generation Using Phase-Change Chalcogenides

We demonstrate a Ge<inf>2</inf>Sb<inf>2</inf>Te<inf>5</inf> (GST)-based asymmetric Fabry-Perot cavity facilitating broadband continuous tuning of third-harmonic generation (THG) due to the

Tunable Mie Resonances in the Visible Spectrum

Tunable Mie Resonances in the Visible Spectrum Li Lu, Zhaogang Dong, Febiana Tijiptoharsono, Ray Jia Hong Ng, Hongtao Wang, Soroosh Daqiqeh Rezaei, Yunzheng Wang, Hai Sheng Leong, Joel K. W. Yang*



Third‐Harmonic Generation from Plasmonic Metasurfaces Coupled to Intersubband Transitions

Nonlinear responses in metasurfaces have shown great promise for various applications, such as nonlinear holography, spectroscopy, and novel nonlinear light sources. Metasurfaces that produce

Enhanced high-harmonic generation from an all-dielectric metasurface

The recent observation of high-harmonic generation from solids creates a new possibility for engineering fundamental strong-field processes by patterning the solid target with subwavelength

Generating Third Harmonic Vacuum Ultraviolet Light with a TiO2 Metasurface.

This work demonstrates an effective strategy for the compact generation of VUV light that could enable expanded access to this useful region of the electromagnetic spectrum.

Toroidal Dipole-Enhanced Third Harmonic Generation of Deep Ultraviolet Light Using Plasmonic Meta-atoms.

It is demonstrated that the third harmonic generation of deep UV light in an indium tin oxide (ITO) film can be substantially enhanced by a metasurface consisting of metallic toroidal meta-atoms covered with an alumina layer for protection against laser-induced damage.

Dynamic Hybrid Metasurfaces.

A reconfigurable hybrid metasurface platform is presented by incorporating the phase-change material Ge2Sb2Te5 (GST) into metal-dielectric meta-atoms for active and nonvolatile tuning of properties of light.

A High‐Index Ge2Sb2Te5‐Based Fabry–Perot Cavity and Its Application for Third‐Harmonic Generation

Third‐order harmonic generation (THG) plays a vital role in microscopy, optical communications, etc. Conventional methods of obtaining efficient THG in macroscopic crystals is already mature;

Continuous Wave Second Harmonic Generation Enabled by Quasi-Bound-States in the Continuum on Gallium Phosphide Metasurfaces.

Resonant metasurfaces are an attractive platform for enhancing the nonlinear optical processes, such as second harmonic generation (SHG), since they can generate large local electromagnetic fields

Efficient Third Harmonic Generation and Nonlinear Subwavelength Imaging at a Higher-Order Anapole Mode in a Single Germanium Nanodisk.

This work demonstrates that a higher-order anapole mode in a 200 nm thick germanium nanodisk delivers the highest THG efficiency on the nanoscale at optical frequencies and unveils the anapoles near-field intensity distributions, which show excellent agreement with numerical simulations.

Enhanced Third Harmonic Generation in Single Germanium Nanodisks Excited at the Anapole Mode.

An all-dielectric germanium nanosystem exhibiting a strong third order nonlinear response and efficient third harmonic generation in the optical regime and the nonlinear conversion via the anapole mode outperforms that via the radiative dipolar resonances by about 1 order of magnitude is presented.

Switching the second harmonic generation by a dielectric metasurface via tunable liquid crystal.

It is numerically demonstrated that, by switching the liquid crystal orientation with a realistic voltage bias, it is possible to modulate the total power and the emission pattern of the SH signal coming from the proposed metasurface.