466 citations · 1.1k across the 10 of their papers we have counts for
10 papers
An optical metamixer
Sheng Liu, Polina P. Vabishchevich, Aleksandr Vaskin +5
A frequency mixer is a nonlinear device that combines electromagnetic waves to create waves at new frequencies. Mixers are ubiquitous components in modern radio-frequency technolog…
Active tuning of high-Q dielectric metasurfaces
Matthew Parry, Andrei Komar, Ben Hopkins +7
We demonstrate the active tuning of all-dielectric metasurfaces exhibiting high-quality factor (high-Q) resonances. The active control is provided by embedding the asymmetric silic…
Resonantly enhanced second-harmonic generation using III-V semiconductor all-dielectric metasurfaces
Sheng Liu, Michael B. Sinclair, Sina Saravi +8
Nonlinear optical phenomena in nanostructured materials have been challenging our perceptions of nonlinear optical processes that have been explored since the invention of lasers.…
Broken symmetry dielectric resonators for high quality-factor Fano metasurfaces
Salvatore Campione, Sheng Liu, Lorena I. Basilio +8
We present a new approach to dielectric metasurface design that relies on a single resonator per unit cell and produces robust, high quality-factor Fano resonances. Our approach ut…
III-V semiconductor nano-resonators-a new strategy for passive, active, and nonlinear all-dielectric metamaterials
Sheng Liu, Gordon A. Keeler, John L. Reno +2
Metamaterials comprising assemblies of dielectric resonators have attracted much attention due to their low intrinsic loss and isotropic optical response. In particular, metasurfac…
Efficient polarization insensitive complex wavefront control using Huygens' metasurfaces based on dielectric resonant meta-atoms
Katie E. Chong, Lei Wang, Isabelle Staude +8
Subwavelength-thin metasurfaces have shown great promises for the control of optical wavefronts, thus opening new pathways for the development of efficient flat optics. In particul…
Realizing high-quality, ultra-large momentum states using semiconductor hyperbolic metamaterials
Salvatore Campione, Sheng Liu, Ting S. Luk +1
We employ both the effective medium approximation (EMA) and Bloch theory to compare the dispersion properties of semiconductor hyperbolic metamaterials (SHMs) at mid-infrared frequ…
Enhanced third harmonic generation from the epsilon-near-zero modes of ultrathin films
Ting S. Luk, Domenico de Ceglia, Sheng Liu +6
We experimentally demonstrate efficient third harmonic generation from an indium tin oxide (ITO) nanofilm (lambda/42 thick) on a glass substrate for a pump wavelength of 1.4 um. A…
Directional perfect absorption using deep subwavelength low permittivity films
Ting S. Luk, Salvatore Campione, Iltai Kim +8
We experimentally demonstrate single beam directional perfect absorption (to within experimental accuracy) of p-polarized light in the near-infrared using unpatterned, deep subwave…
Optical Magnetic Mirrors without Metals
Sheng Liu, Michael B. Sinclair, Thomas S. Mahony +9
The reflection of an optical wave from a metal, arising from strong interactions between the optical electric field and the free carriers of the metal, is accompanied by a phase re…