149 citations · 522 across the 13 of their papers we have counts for
14 papers
Quantum materials QED with van der Waals crystals
Suheng Xu, Brian Vermilyea, Ran Jing +19
A central goal of the emerging field of materials QED is to harness subwavelength electromagnetic confinement in engineered cavities to tailor light-matter interactions. Here, we d…
Bolometric Superconducting Optical Nanoscopy (BOSON)
Ran Jing, Boyi Zhou, Dingchen Kang +20
Superconducting transition-edge sensors are renowned for their extraordinary photon sensitivity and energy resolution, finding applications spanning quantum information, astronomy,…
Nano-Imaging of Landau-Phonon Polaritons in Dirac Heterostructures
Lukas Wehmeier, Suheng Xu, Rafael A. Mayer +19
Polaritons are light-matter quasiparticles that govern the optical response of quantum materials and enable their nanophotonic applications. We have studied a new type of polariton…
Visualizing moiré ferroelectricity via plasmons and nano-photocurrent in graphene/twisted-WSe2 structures
Shuai Zhang, Yang Liu, Zhiyuan Sun +28
Ferroelectricity, a spontaneous and reversible electric polarization, is found in certain classes of van der Waals (vdW) material heterostructures. The discovery of ferroelectricit…
Machine Learning for Optical Scanning Probe Nanoscopy
Xinzhong Chen, Suheng Xu, Sara Shabani +7
The ability to perform nanometer-scale optical imaging and spectroscopy is key to deciphering the low-energy effects in quantum materials, as well as vibrational fingerprints in pl…
Deep-Learning-Aided Extraction of Optical Constants in Scanning Near-Field Optical Microscopy
Yueqi Zhao, Xinzhong Chen, Ziheng Yao +2
Scanning near-field optical microscopy is one of the most effective techniques for spectroscopy of nanoscale systems. However, inferring optical constants from the measured near-fi…
Deep learning analysis of polaritonic waves images
Suheng Xu, Alexander S. McLeod, Xinzhong Chen +11
Deep learning (DL) is an emerging analysis tool across sciences and engineering. Encouraged by the successes of DL in revealing quantitative trends in massive imaging data, we appl…
Hybrid Machine Learning for Scanning Near-field Optical Spectroscopy
Xinzhong Chen, Ziheng Yao, Suheng Xu +11
The underlying physics behind an experimental observation often lacks a simple analytical description. This is especially the case for scanning probe microscopy techniques, where t…
THz Near-Field Imaging of Extreme Subwavelength Metal Structures
Xinzhong Chen, Xiao Liu, Xiangdong Guo +15
Modern scattering-type scanning near-field optical microscopy (s-SNOM) has become an indispensable tool in material research. However, as the s-SNOM technique marches into the far-…
Strain control of the metal-insulator transition in epitaxial SrCrO thin films
Giulia Bertino, Hsiang-Chun Hsing, Anna Gura +5
In the perovskite oxide SrCrO the interplay between crystal structure, strain and orbital ordering enables a transition from a metallic to an insulating electronic structure…
Moiré Engineering of Electronic Phenomena in Correlated Oxides
Xinzhong Chen, Xiaodong Fan, Lin Li +14
Moiré engineering has recently emerged as a capable approach to control quantum phenomena in condensed matter systems. In van der Waals heterostructures, moiré patterns can be form…
Chiral terahertz wave emission from the Weyl semimetal TaAs
Y. Gao, Y. Qin, Sahal Kaushik +9
As a fascinating topological phase of matter, Weyl semimetals host chiral fermions with distinct chiralities and spin textures. Optical excitations involving those chiral fermions…
Phase change materials for nano-polaritonics: a case study of hBN/VO2 heterostructures
S. Dai, J. Zhang, Q. Ma +11
Polaritonic excitation and control in van der Waals (vdW) materials exhibit superior merits than conventional materials and thus hold new promise for exploring light matter interac…
Scattering of electromagnetic waves from a cone with conformal mapping: application to scanning near-field optical microscope
S. T. Chui, Mengkun Liu, Xinzhong Chen +2
We study the response of a conical metallic surface to an external electromagnetic (EM) field by representing the fields in basis functions containing integrable singularities at t…