673 citations · 1.5k across the 9 of their papers we have counts for
9 papers
High quality factor polariton resonators using van der Waals materials
Michele Tamagnone, Kundan Chaudhary, Christina M. Spaegele +6
We present high quality factor optical nanoresonators operating in the mid-IR to far-IR based on phonon polaritons in van der Waals materials. The nanoresonators are disks patterne…
A broadband achromatic polarization-insensitive metalens consisting of anisotropic nanostructures
Wei Ting Chen, Alexander Y. Zhu, Jared Sisler +2
Metasurfaces have attracted widespread attention due to an increasing demand of compact and wearable optical devices. For many applications, polarization-insensitive metasurfaces a…
Freestanding dielectric nanohole array metasurface for mid-infrared wavelength applications
Jun Rong Ong, Hong Son Chu, Valerian Hongjie Chen +2
We designed and simulated freestanding dielectric optical metasurfaces based on arrays of etched nanoholes in a silicon membrane. We showed phase control and high forward tran…
Anisotropic Surface Plasmon Polariton Generation Using Bimodal V-Antenna Based Metastructures
Daniel Wintz, Antonio Ambrosio, Alexander Y. Zhu +2
V-shaped nanoantennas are among the popular choices for the unit element of a metasurface, a nanostructured surface used for its ability to mold and control the wavefront of light.…
Phase and dispersion engineering of metalenses: broadband achromatic focusing and imaging in the visible
Wei Ting Chen, Alexander Y. Zhu, Vyshakh Sanjeev +4
Metasurfaces have the potential to miniaturize and improve the performance of any optical element, with applications spanning telecommunications, computing and wearable optics. How…
Guided Modes of Anisotropic van der Waals Materials Investigated by Near-Field Scanning Optical Microscopy
Daniel Wintz, Kundan Chaudhary, Ke Wang +11
Guided modes in anisotropic two-dimensional van der Waals materials are experimentally investigated and their refractive indices in visible wavelengths are extracted. Our method in…
Achromatic Metalens in the Visible and Metalens with Reverse Chromatic Dispersion
M. Khorasaninejad, Z. Shi, A. Y. Zhu +4
In this letter, we experimentally report an achromatic metalens (AML) operating over a continuous bandwidth in the visible. This is accomplished via dispersion engineering of diele…
Spin-to-orbital angular momentum conversion in dielectric metasurfaces
Robert Charles Devlin, Antonio Ambrosio, Daniel Wintz +6
Spin-to-orbital-angular-momentum conversion has attracted considerable interest as a tool to create exotic light beams, leading to the emergence of novel devices that implement thi…
Planar Lenses at Visible Wavelengths
Mohammadreza Khorasaninejad, Wei Ting Chen, Robert C. Devlin +3
Sub-wavelength resolution imaging requires high numerical aperture (NA) lenses, which are bulky and expensive. Metasurfaces allow the miniaturization of conventional refractive opt…