Dielectric‐Based Metamaterials for Near‐Perfect Light Absorption

BX Wang, X Qin, G Duan, G Yang… - Advanced Functional …, 2024 - Wiley Online Library
The emergence of metamaterials and their continued prosperity have built a powerful
working platform for accurately manipulating the behavior of electromagnetic waves …

Near‐Field Nano‐Optical Imaging of van der Waals Materials

S Kwon, JM Kim, PJ Ma, W Guan… - Advanced Physics …, 2023 - Wiley Online Library
Abstract 2D van der Waals (vdW) materials are emerging as the next generation platform for
optical and electronic devices with their wide coverage of the energy bandgaps. The strong …

High-fidelity nano-FTIR spectroscopy by on-pixel normalization of signal harmonics

L Mester, AA Govyadinov, R Hillenbrand - Nanophotonics, 2022 - degruyter.com
Scattering-type scanning near-field optical microscopy (s-SNOM) and Fourier transform
infrared nanospectroscopy (nano-FTIR) are emerging tools for physical and chemical …

Experimental observation of ABCB stacked tetralayer graphene

KG Wirth, JB Hauck, A Rothstein, H Kyoseva… - ACS …, 2022 - ACS Publications
In tetralayer graphene, three inequivalent layer stackings should exist; however, only
rhombohedral (ABCA) and Bernal (ABAB) stacking have so far been observed. The three …

Ultrafast infrared nano-imaging of far-from-equilibrium carrier and vibrational dynamics

J Nishida, SC Johnson, PTS Chang… - Nature …, 2022 - nature.com
Ultrafast infrared nano-imaging has demonstrated access to ultrafast carrier dynamics on the
nanoscale in semiconductor, correlated-electron, or polaritonic materials. However, mostly …

Colossal Near‐Field Radiative Heat Transfer Mediated by Coupled Polaritons with an Ultrahigh Dynamic Range

W Zhang, B Wang, S Jin, J Zhou, Z Gong… - Advanced …, 2024 - Wiley Online Library
Near‐field radiative heat transfer (NFRHT) can exceed the blackbody limit by several orders
of magnitude owing to the tunneling evanescent waves. Exploiting this near‐field …

Tunable, homoepitaxial hyperbolic metamaterials enabled by high mobility CdO

AJ Cleri, JR Nolen, KG Wirth, M He… - Advanced optical …, 2023 - Wiley Online Library
Propagating light exhibits hyperbolicity in strongly anisotropic materials where the principal
components of the dielectric tensor are opposite in sign. While hyperbolicity occurs naturally …

Out-of-plane dielectric susceptibility of graphene in twistronic and bernal bilayers

S Slizovskiy, A Garcia-Ruiz, AI Berdyugin, N Xin… - Nano Letters, 2021 - ACS Publications
We describe how the out-of-plane dielectric polarizability of monolayer graphene influences
the electrostatics of bilayer graphene—both Bernal (BLG) and twisted (tBLG). We compare …

Spin and charge fluctuation induced pairing in ABCB tetralayer graphene

A Fischer, L Klebl, JB Profe, A Rothstein… - Physical Review …, 2024 - APS
Motivated by the recent experimental realization of ABCB stacked tetralayer graphene
[Wirth, ACS Nano 16, 16617 (2022) 1936-0851 10.1021/acsnano. 2c06053], we study …

Direct Electrochemical Functionalization of Graphene Grown on Cu Including the Reaction Rate Dependence on the Cu Facet Type

M Kim, SH Joo, M Wang, SG Menabde, D Luo, S Jin… - ACS …, 2023 - ACS Publications
We present an electrochemical method to functionalize single-crystal graphene grown on
copper foils with a (111) surface orientation by chemical vapor deposition (CVD). Graphene …