285 citations · 1.6k across the 19 of their papers we have counts for
19 papers
Roadmap for Photonics with 2D Materials
F. Javier García de Abajo, D. N. Basov, Frank H. L. Koppens +145
Triggered by the development of exfoliation and the identification of a wide range of extraordinary physical properties in self-standing films consisting of one or few atomic layer…
Time-modulated near-field radiative heat transfer
Renwen Yu, Shanhui Fan
We explore near-field radiative heat transfer between two bodies under time modulation by developing a rigorous fluctuational electrodynamics formalism. We demonstrate that time mo…
Universal and ultrafast quantum computation based on free-electron-polariton blockade
Aviv Karnieli, Shai Tsesses, Renwen Yu +4
Cavity quantum electrodynamics (QED), wherein a quantum emitter is coupled to electromagnetic cavity modes, is a powerful platform for implementing quantum sensors, memories, and n…
Manipulating coherence of near-field thermal radiation in time-modulated systems
Renwen Yu, Shanhui Fan
We show that the spatial coherence of thermal radiation can be manipulated in time-modulated photonic systems supporting surface polaritons. We develop a fluctuational electrodynam…
Moving Media as Photonic Heat Engine and Pump
Yoichiro Tsurimaki, Renwen Yu, Shanhui Fan
A system consisting of two slabs with different temperatures can exhibit a non-equilibrium lateral Casimir force on either one of the slabs when Lorentz reciprocity is broken in at…
Gate-tunable negative refraction of mid-infrared polaritons
Hai Hu, Na Chen, Hanchao Teng +11
Negative refraction provides an attractive platform to manipulate mid-infrared and terahertz radiation for molecular sensing and thermal radiation applications. However, its implem…
Doping-driven topological polaritons in graphene/α-MoO3 heterostructures
Hai Hu, Na Chen, Hanchao Teng +15
Controlling the charge carrier density provides an efficient way to trigger phase transitions and modulate the optoelectronic properties in natural materials. This approach could b…
Inelastic Scattering of Electron Beams by Nonreciprocal Nanotructures
Renwen Yu, Andrea Konečná, F. Javier García de Abajo
Probing optical excitations with high resolution is important for understanding their dynamics and controlling their interaction with other photonic elements. This can be done usin…
Ultrafast Topological Engineering in Metamaterials
Renwen Yu, Rasoul Alaee, Robert W. Boyd +1
Transient optical heating provides an efficient way to trigger phase transitions in naturally occurring media through ultrashort laser pulse irradiation. A similar approach could b…
Tracking ultrafast hot-electron diffusion in space and time by ultrafast thermo-modulation microscopy
Alexander Block, Matz Liebel, Renwen Yu +4
The ultrafast response of metals to light is governed by intriguing non-equilibrium dynamics involving the interplay of excited electrons and phonons. The coupling between them giv…
Tunable plasmons in ultrathin metal films
Rinu Abraham Maniyara, Daniel Rodrigo, Renwen Yu +7
The physics of electrons, photons, and their plasmonic interactions changes greatly when one or more dimensions are reduced down to the nanometer scale. For example, graphene shows…
Photothermal Engineering of Graphene Plasmons
Renwen Yu, Qiushi Guo, Fengnian Xia +1
Nanoscale photothermal sources find important applications in theranostics, imaging, and catalysis. In this context, graphene offers a unique suite of optical, electrical, and ther…
Efficient Electrical Detection of Mid-Infrared Graphene Plasmons at Room Temperature
Qiushi Guo, Renwen Yu, Cheng Li +4
Optical excitation and subsequent decay of graphene plasmons can produce a significant increase in charge-carrier temperature. An efficient method to convert this temperature eleva…
Analytical Modeling of Graphene Plasmons
Renwen Yu, Joel D. Cox, J. R. M. Saavedra +1
The two-dimensionality of graphene and other layered materials can be exploited to simplify the theoretical description of their plasmonic and polaritonic modes. We present an anal…
Electrical Detection of Single Graphene Plasmons
Renwen Yu, F. Javier García de Abajo
Plasmons --the collective oscillations of electrons in conducting materials-- play a pivotal role in nanophotonics because of their ability to couple electronic and photonic degree…
Continuous-Wave Multiphoton Photoemission from Plasmonic Nanostars
Murat Sivis, Nicolas Pazos-Perez, Renwen Yu +3
Highly nonlinear optical processes, such as multiphoton photoemission, require high intensities, typically achieved with ultrashort laser pulses and, hence, were first observed wit…
Ultrafast Radiative Heat Transfer
R. Yu, A. Manjavacas, F. J. Garcia de Abajo
Light absorption in conducting materials produces heating of their conduction electrons, followed by relaxation into phonons within picoseconds, and subsequent diffusion into the s…
Resonant Visible Light Modulation with Graphene
Renwen Yu, Valerio Pruneri, F. Javier Garcia de Abajo
Fast modulation and switching of light at visible and near-infrared (vis-NIR) frequencies is of utmost importance for optical signal processing and sensing technologies. No fundame…
Manipulating the Interaction between Localized and Delocalized Surface Plasmon Polaritons in Graphene
Renwen Yu, Rasoul Alaee, Falk Lederer +1
The excitation of localized or delocalized surface plasmon polaritons in nanostructured or extended graphene has attracted a steadily increasing attention due to their promising ap…