360 citations · 1.3k across the 15 of their papers we have counts for
15 papers
Electronic transport in BN-encasulated graphene limited by remote phonon scattering
Khalid Dinar, Francesco Macheda, Alberto Guandalini +6
We study the impact of BN's phonons on the electrical resistivity of hBN-encapsulated graphene. While encapsulation yields high-mobility devices, the surrounding BN itself introduc…
Spin-dependent photovoltage in graphene/MoS2-based field-effect transistors
K. Dinar, J. Delgado-Notario, C. Bray +14
It has recently been shown that Terahertz sensors can effectively detect the spin resonances of Dirac fermions in graphene. The associated photovoltaic measurement technique allows…
Multi-probe analysis to separate edge currents from bulk currents in quantum spin Hall insulators and to analyze their temperature dependence
S. Benlenqwanssa, S. S. Krishtopenko, M. Meyer +13
We present a multi-probe transport analysis that effectively separates bulk and edge currents in large Hall bar devices with standard geometries. Applied to transport measurements…
Giant enhancement of third-harmonic generation in graphene-metal heterostructures
Irati Alonso Calafell, Lee A. Rozema, David Alcaraz Iranzo +13
Nonlinear nanophotonics leverages engineered nanostructures to funnel light into small volumes and intensify nonlinear optical processes with spectral and spatial control. Due to i…
Large inverted band-gap in strained three-layer InAs/GaInSb quantum wells
C. Avogadri, S. Gebert, S. S. Krishtopenko +17
Quantum spin Hall insulators (QSHIs) based on HgTe and three-layer InAs/GaSb quantum wells (QWs) have comparable bulk band-gaps of about 10--18~meV. The former however features a b…
Probing the Ultimate Plasmon Confinement Limits with a Van der Waals heterostructure
David Alcaraz Iranzo, Sebastien Nanot, Eduardo J. C. Dias +11
The ability to confine light into tiny spatial dimensions is important for applications such as microscopy, sensing and nanoscale lasers. While plasmons offer an appealing avenue t…
Magnetic-field driven ambipolar quantum Hall effect in epitaxial graphene close to the charge neutrality point
A. Nachawaty, M. Yang, W. Desrat +7
We have investigated the disorder of epitaxial graphene close to the charge neutrality point (CNP) by various methods: i) at room temperature, by analyzing the dependence of the re…
Electrical detection of hyperbolic phonon-polaritons in heterostructures of graphene and boron nitride
Achim Woessner, Romain Parret, Diana Davydovskaya +11
Light properties in the mid-infrared can be controlled at a deep subwavelength scale using hyperbolic phonons-polaritons (HPPs) of hexagonal boron nitride (h-BN). While propagating…
Self-aligned local electrolyte gating of 2D materials with nanoscale resolution
Cheng Peng, Dmitri K. Efetov, Sebastien Nanot +8
In the effort to make 2D materials-based devices smaller, faster, and more efficient, it is important to control charge carrier at lengths approaching the nanometer scale. Traditio…
Mid-infrared pyro-resistive graphene detector on LiNbO3
Kavitha K. Gopalan, Davide Janner, Sebastien Nanot +4
Mid-infrared (mid-IR) photo-detection has been recently growing in importance because of its multiple applications, including vibrational spectroscopy and thermal imaging. We propo…
Graphene-based, mid-infrared, room-temperature pyroelectric bolometers with ultrahigh temperature coefficient of resistance
U. Sassi, R. Parret, S. Nanot +9
Graphene is ideally suited for photonic and optoelectronic applications, with a variety of photodetectors (PDs) in the visible, near-infrared (NIR), and THz reported to date, as we…
Phonon-mediated mid-infrared photoresponse of graphene
Michela Badioli, Achim Woessner, Klaas-Jan Tielrooij +5
The photoresponse of graphene at mid-infrared frequencies is of high technological interest and is governed by fundamentally different underlying physics than the photoresponse at…
Electrical Control of Optical Emitter Relaxation Pathways enabled by Graphene
K. J. Tielrooij, L. Orona, A. Ferrier +16
Controlling the energy flow processes and the associated energy relaxation rates of a light emitter is of high fundamental interest, and has many applications in the fields of quan…
Terahertz Dynamics of Quantum-Confined Electrons in Carbon Nanomaterials
L. Ren, Q. Zhang, S. Nanot +3
Low-dimensional carbon nanostructures, such as single-wall carbon nanotubes (SWCNTs) and graphene, offer new opportunities for terahertz science and technology. Being zero-gap syst…
Terahertz and Infrared Spectroscopy of Gated Large-Area Graphene
Lei Ren, Qi Zhang, Jun Yao +9
We have fabricated a centimeter-size single-layer graphene device, with a gate electrode, which can modulate the transmission of terahertz and infrared waves. Using time-domain ter…