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The Structure of Graphene on Graphene/C60/Cu Interfaces: A Molecular Dynamics StudyApr 22 2019Two experimental studies reported the spontaneous formation of amorphous and crystalline structures of C60 intercalated between graphene and a substrate. They observed interesting phenomena ranging from reaction between C60 molecules under graphene to ... More
Synergistic Effects of Nanoparticle Heating and Amoxicillin on H. Pylori InhibitionApr 21 2019We report the design and development of a dual-functional magnetic nanoparticle platform for potential treatment of H. pylori infection. We show that an ultralow concentration of Mn0.3Fe2.7O4@SiO2 nanoparticles subjected to a moderate AC magnetic field, ... More
One mask to rule them all: Writing arbitrary intensity distributions by scanning a single illuminated spatially-random screenApr 21 2019Arbitrary intensity distributions may be written by transversely scanning a single spatially-random screen that is normally illuminated by spatially but not necessarily temporally uniform radiation or matter wave fields. The arbitrariness, of the written ... More
Hybridization-induced resonances with high quality factor in a plasmonic concentric ring-disk nanocavityApr 20 2019Plasmonic resonators have drawn more attention due to the ability to confine light into subwavelength scale. However, they always suffer from a low quality (Q) factor owing to the intrinsic loss of metal. Here, we numerically propose a plasmonic resonator ... More
Smoothing of the slowly extracted coasting beam from a synchrotronApr 19 2019Slow extraction of beam from synchrotrons or storage rings as required by many fixed target experiments is performed by controlled excitation and feeding of a structural lattice resonance. Due to the sensitive nature of this resonant extraction process, ... More
Bi2Te3/Sb2Te3 Heterojunction and Thermophotovoltaic Cells Absorbing the Radiation from Room-temperature SurroundingsApr 18 2019The thermophotovoltaic cells which can convert the infrared radiation from room-temperature surroundings into electricity are of significance due to their potential applications in many fields. In this work, narrow bandgap Bi2Te3/Sb2Te3 thin film thermophotovoltaic ... More
GHz Dielectric Measurement of Powdery TiOApr 18 2019This study experimentally determines the dielectric properties of a powdery titanium (II) oxide (TiO) material within the microwave range (0.1-13.5 GHz). The properties were determined using a coaxial airline method using a TiO/paraffin mixture at several ... More
Diffusion properties of electrons in GaN crystals subjected to electric and magnetic fieldsApr 18 2019We studied the diffusion coefficient of hot electrons of GaN crystals in moderate electric (1...10 kV/cm) and magnetic (1...4 T) fields. Two configurations, parallel and crossed fields, are analysed. The study was carried out for compensated bulk-like ... More
Spatial dispersion of the high-frequency conductivity of two-dimensional electron gas subjected to a high electric field: collisionless caseApr 18 2019We present the analysis of high-frequency (dynamic) conductivity with the spatial dispersion, $\sigma (\omega, {\bf q})$, of two-dimensional electron gas subjected to a high electric field. We found that at finite wavevector, ${\bf q}$, and at high fields, ... More
Surface states in AlGaN/GaN high electron mobility transistors: Quantitative profiles and dynamics of the surface Fermi levelApr 18 2019We present a method to obtain quantitative profiles of surface state charge density and monitor its dynamics under various stress conditions in high electron mobility transistor (HEMT) devices. The method employs an optical spectroscopy of the channel ... More
Water-based and Inkjet Printable Inks made by Electrochemically Exfoliated GrapheneApr 18 2019Inkjet printable graphene inks are very attractive for applications in flexible and foldable electronics, such as wearable electronics and the Internet of Things. However, the ink preparation is still very time consuming as high concentrations can be ... More
All-optical frequency processor for networking applicationsApr 17 2019We propose an electro-optic approach for transparent optical networking, in which frequency channels are actively transformed into any desired mapping in a wavelength-multiplexed environment. Based on electro-optic phase modulators and Fourier-transform ... More
Gas-phase synthesis of carbon nanotube-graphene heterostructuresApr 17 2019Graphene and carbon nanotubes (CNTs) share the same atomic structure of hexagonal carbon lattice. Yet, their synthesis differs in many aspects, including the shape and size of the catalyst. Here, we demonstrate a floating-catalyst chemical vapor deposition ... More
Three-dimensional femtosecond laser nanolithography of crystalsApr 17 2019Nanostructuring hard optical crystals has so far been exclusively feasible at their surface, as stress induced crack formation and propagation has rendered high precision volume processes ineffective. We show that the inner chemical etching reactivity ... More
Grid Inadequacy Assessment against Power Injection Diversity from Intermittent Generation, Dynamic Loads, and Energy StorageApr 17 2019The integration of more intermittent generation, energy storage, and dynamic loads on top of a competitive market environment requires future grids to handle increasing diversity of power injection states. Grid planners need new tools and metrics that ... More
Aqueous metal-organic solutions for YSZ thin film inkjet depositionApr 17 2019Inkjet printing of 8% Y2O3-stabilized ZrO2 (YSZ) thin films is achieved by designing a novel water-based reactive ink for Drop-on-Demand (DoD) inkjet printing. The ink formulation is based on a novel chemical strategy that consists of a combination of ... More
Design and Characterization of Plasmonic Doppler Grating for Azimuthal Angle-resolved Surface Plasmon ResonancesApr 17 2019We present two-dimensional plasmonic Doppler grating (PDG) for broadband azimuthal angle-resolved nanophotonic applications. The PDG consists of a set of non-concentric circular rings mimicking the wavefronts of a moving point source that exhibits Doppler ... More
Nanophotonic quantum storage at telecommunications wavelengthApr 17 2019Quantum memories for light are important components for future long distance quantum networks. We present on-chip quantum storage of telecommunications band light at the single photon level in an ensemble of erbium-167 ions in an yttrium orthosilicate ... More
Unsteady aerodynamic effects in small-amplitude pitch oscillations of an airfoilApr 16 2019High-fidelity wall-resolved large-eddy simulations (LES) are utilized to investigate the flow-physics of small-amplitude pitch oscillations of an airfoil at Re = 100,000. The investigation of the unsteady phenomenon is done in the context of natural laminar ... More
Thermionic-enhanced near-field thermophotovoltaicsApr 16 2019Solid-state heat-to-electrical power converters are thermodynamic engines that use fundamental particles, such as electrons or photons, as working fluids. Virtually all commercially available devices are thermoelectric generators, in which electrons flow ... More
Coherent Magneto-Optomechanical Signal Transduction and Long-Distance Phase-Shift KeyingApr 16 2019A transducer capable of converting quantum information stored as microwaves into telecom-wavelength signals is a critical piece of future quantum technology as it promises to enable the networking of quantum processors. Cavity optomechanical devices that ... More
On-Chip Integrable Planar NbN NanoSQUID with Broad Temperature and Magnetic-Field Operation RangeApr 16 2019Superconducting quantum interference devices (SQUIDs) are used for applications ranging from sensitive magnetometers to low-temperature electronics and quantum computation. We introduce a planar nano SQUID that was made with a single lithographic step ... More
Loss and Saturation in Superconducting Travelling-Wave Parametric AmplifiersApr 16 2019We have developed a coupled-mode analysis framework for superconducting travelling-wave parametric amplifiers using the full Telegrapher's equations to incorporate loss-related behaviour. Our model provides an explanation of previous experimental observations ... More
Designable spectrometer-free index sensing using plasmonic Doppler gratingsApr 16 2019Typical nanoparticle-based plasmonic index sensors detect the spectral shift of localized surface plasmon resonance (LSPR) upon the change of environmental index. Therefore, they require broadband illumination and spectrometers. The sensitivity and flexibility ... More
Lagrangian transport and chaotic advection in three-dimensional laminar flowsApr 16 2019Transport and mixing of scalar quantities in fluid flows is ubiquitous in industry and Nature. Turbulent flows promote efficient transport and mixing by their inherent randomness. Laminar flows lack such a natural mixing mechanism and efficient transport ... More
Non-equilibrium Green's function predictions of band tails and band gap narrowing in III-V semiconductors and nanodevicesApr 16 2019High-doping induced Urbach tails and band gap narrowing play a significant role in determining the performance of tunneling devices and optoelectronic devices such as tunnel field-effect transistors (TFETs), Esaki diodes and light-emitting diodes. In ... More
Acoustic manipulation through zero-thickness perforated plane with strong-coupling effectsApr 16 2019How to manipulate acoustic waves through thinner structures is always a challenging problem due to the linear proportional relationship between the structural thickness and the acoustic wavelength. Here, we show the possibility of breaking this relationship ... More
Application of single-electron effects to fingerprints of chipsApr 16 2019Single-electron effects have been widely investigated as a typical physical phenomenon in nanoelectronics. The single-electron effect caused by trap sites has been observed in many devices. In general, traps are randomly distributed and not controllable; ... More
Coupling of homogeneous and heterogeneous melting kinetics in polycrystallinesApr 16 2019Melting kinetics of polycrystallines is analyzed on the basis of a new model which explicitly couples homogeneous and heterogeneous melting mechanisms. The distinct feature of this approach lies in its ability to evaluate not only grain-size-distribution ... More
The role of deformability in determining the structural and mechanical properties of bubbles and emulsionsApr 16 2019We perform computational studies of jammed particle packings in two dimensions undergoing isotropic compression using the well-characterized soft particle (SP) model and the deformable particle (DP) model that we developed for compressed bubbles and emulsions. ... More
Interferometric scattering enables fluorescence-free electrokinetic trapping of single nanoparticles in free solutionApr 15 2019Anti-Brownian traps confine single particles in free solution by closed-loop feedback forces that directly counteract Brownian motion. The extended-duration measurement of trapped objects allows detailed characterization of photophysical and transport ... More
Dual Plasmonic Modes from In-Situ Silver Nanoparticle Formation via Diffusion at Silver / Dielectric InterfacesApr 15 2019Metal-dielectric interfaces of various geometries are fundamental photonic material platforms for surface plasmons. Surface plasmon polaritons and localized surface plasmons are two surface plasmon modes that are excited on planar and curved metal-dielectric ... More
Photonic-crystal-reflector nano-resonators for Kerr-frequency combsApr 15 2019We demonstrate Kerr-frequency-comb generation with nanofabricated Fabry-Perot resonators with photonic-crystal-reflector (PCR) end mirrors. The PCR group-velocity-dispersion (GVD) is engineered to counteract the strong normal GVD of a rectangular waveguide ... More
Photonic-crystal-reflector nano-resonators for Kerr-frequency combsApr 15 2019Apr 17 2019We demonstrate Kerr-frequency-comb generation with nanofabricated Fabry-Perot resonators with photonic-crystal-reflector (PCR) end mirrors. The PCR group-velocity-dispersion (GVD) is engineered to counteract the strong normal GVD of a rectangular waveguide ... More
Spin-to-charge conversion in magnetic Weyl semimetalsApr 15 2019Weyl semimetals (WSMs) are a newly discovered class of quantum materials which can host a number of exotic bulk transport properties, such as the chiral magnetic effect, negative magneto-resistance, and the anomalous Hall effect. In this work, we investigate ... More
Coulomb blockade in Etched Single and Few Layer MoS2 NanoribbonsApr 15 2019Confinement in two-dimensional transition metal dichalcogenides is an attractive platform for trapping single charge and spins for quantum information processing. Here, we present low temperature electron transport through etched 50-70nm MoS2 nanoribbons ... More
Spin-Orbit-Torque Driven Propagating Spin WavesApr 15 2019Spin-orbit torque (SOT) can drive sustained spin wave (SW) auto-oscillations in a class of emerging microwave devices known as spin Hall nano-oscillators (SHNOs), which have highly non-linear properties governing robust mutual synchronization at frequencies ... More
In-situ detecting cooperative-target's speed and rotation inertia using structured lightApr 15 2019Laser remote sensing represents a powerful tool that enables the accurate measurement of the speed of moving targets. Crucially, most sensing techniques are 2-Dimensional and only enable direct determination of the speed along the line of sight. A disadvantage ... More
Superconductivity in single-crystalline, aluminum- and gallium-hyperdoped germaniumApr 15 2019Superconductivity in group IV semiconductors is desired for hybrid devices combining both semiconducting and superconducting properties. Following boron doped diamond and Si, superconductivity has been observed in gallium doped Ge, however the obtained ... More
Spatial Control of Frost Formation on Surfaces with Millimetric Serrated FeaturesApr 14 2019Numerous studies have focused on a low surface energy coating and a micro/nanoscale surface texture to design functional surfaces that delay frost formation and reduce ice adhesion. However, the scientific challenges for in developing icephobic surfaces ... More
Reversible electric-field-driven magnetization in a columnar nanocomposite filmApr 13 2019Magnetic hysteresis loops show a moderate perpendicular anisotropy of the magnetostrictive CFO pillars, which is related to their vertical compression. The application of an electric field to the electromechanical PMN-PT substrate produced significant ... More
A Quantum Engineer's Guide to Superconducting QubitsApr 13 2019The aim of this review is to provide quantum engineers with an introductory guide to the central concepts and challenges in the rapidly accelerating field of superconducting quantum circuits. Over the past twenty years, the field has matured from a predominantly ... More
Quantum Point Contact Parameter Extraction of Carbon-based Resistive Memory using Hybrid Genetic AlgorithmApr 13 2019Resistive switching phenomenon in carbon film is associated with formation and annihilation of low resistance sp2 nanochannels within the amorphous sp3 matrix. The thinnest point of these graphitic nanochannels behaves like quantum wire (QW) and limits ... More
Equation of Motion for Pinned Fluxes at Volume Defects and Increases of a Diamagnetic Property by Flux Pinning in SuperconductorsApr 12 2019Whereas there are two critical fields that are H$_{c1}$ and H$_{c2}$ in the ideal type II superconductor, there is another critical field H$_{c1}'$ defined as the field showing the maximum diamagnetic property in the real type II superconductor. Here ... More
Estimating of optimal dose of PACL for turbidity removing from waterApr 12 2019Removing suspended solids and colloids are one of the most important water treatment processes. In this research, experimental tests have been done to assess the effects of pH and different doses of PACL on turbidity removal efficiency. The optimum dose ... More
Organic Solvent Based Synthesis of Gold Nanoparticle - Semiconducting 2H-MoS2 Hybrid NanosheetsApr 12 2019The development of simple, versatile strategies for the synthesis of gold nanoparticles (AuNPs) on semiconducting transition metal dichalcogenides (TMDC) layers is of increasing scientific and technological interest in photocatalysis, optical sensing, ... More
Acoustic cloaking: geometric transform, homogenization and a genetic algorithmApr 12 2019A general process is proposed to experimentally design anisotropic inhomogeneous metamaterials obtained through a change of coordinate in the Helmholtz equation. The method is applied to the case of a cylindrical transformation that allows to perform ... More
3D photo-responsive optical devices manufactured by advanced printing technologiesApr 12 2019Photonic components responsive to external optical stimuli are attracting increasing interest, because their properties can be manipulated by light with fast switching times, high spatial definition, and potentially remote control. These aspects can be ... More
Multifunctional Metamirrors Involving Simultaneous Linear-polarization Conversion and FocusingApr 12 2019Reducing a set of diverse bulk-optic-based optical components to a single ultrathin and compact element that enables the same complex functionality has become an emerging research area, propelling further integration and miniaturization in photonics. ... More
Maximum efficiencies and performance limiting factors of inorganic and hybrid perovskite solar cellsApr 12 2019The Shockley and Queisser limit, a well-known efficiency limit for a solar cell, is based on unrealistic physical assumptions and its maximum limit is seriously overestimated. To understand the power loss mechanisms of record-efficiency cells, a more ... More
Large-signal model of the Metal-Insulator-Graphene diode targeting RF applicationsApr 11 2019We present a circuit-design compatible large-signal compact model of metal-insulator-graphene (MIG) diodes for describing its dynamic response for the first time. The model essentially consists of a voltage-dependent diode intrinsic capacitance coupled ... More
Scalable interdigitated photoconductive emitters for the electrical modulation of terahertz beams with arbitrary linear polarizationApr 11 2019A multi-element interdigitated photoconductive emitter for broadband THz polarization rotation is proposed and experimentally verified. The device consists of separate pixels for the emission of horizontally and vertically polarized THz radiation. The ... More
Atomically Engineered Hf0.5Zr0.5O2 Integrated Nano-Electromechanical TransducersApr 11 2019The monolithic integration of electromechanical transduction at the nanoscale with advanced CMOS is among the most important challenges of semiconductor electronic systems to leverage the multi-domain sensing, actuation, and resonance properties of nano-mechanical ... More
Amplification of mid-infrared lasers via magnetized-plasma couplingApr 11 2019Plasmas may be used as gain media for amplifying intense lasers, and external magnetic fields may be applied to improve the performance. For mid-infrared lasers, the requisite magnetic field is on megagauss scale, which can already be provided by current ... More
Optical Kerr nonlinearity of disordered all-dielectric resonant high index metasurfaces with negative refractionApr 11 2019The optical Kerr effect of disordered metasurfaces with negative refraction is estimated for the first time. This is done via three-dimensional finite-difference time-domain (FDTD) simulations of disordered bidisperse metasurfaces consisting of high index ... More
Combined photo- and electroreflectance of multijunction solar cells enabled by subcell electric couplingApr 10 2019Electric coupling between subcells of a monolithically grown multijunction solar cell in short circuit allows their simultaneous and independent characterization by means of photo- and electroreflectance. The photovoltage generated by selective absorption ... More
An efficient solution for accelerating very high intensity beams in the low and medium energy regimeApr 10 2019Taking advantage of the 0{\deg} synchronous phase, the KONUS ("Combined 0{\deg} Structure" translated from German "Kombinierte Null Grad Struktur") beam dynamics strategy enables long accelerating sections with lens-free slim drift tubes in the low and ... More
Particle assembly with synchronized acoustical tweezersApr 10 2019The contactless selective manipulation of individual objects at the microscale is powerfully enabled by acoustical tweezers based on acoustical vortices [Baudoin et al., Sci. Adv., 5:eaav1967 (2019)]. Nevertheless, the ability to assemble multiple objects ... More
The role of resonance and bandgaps in high $k_\textrm{eff}^2$ transducersApr 10 2019Bandgaps formed in a piezoelectric transducer with large coupling, $k_\textrm{eff}^2$, qualitatively modify its electrical response. This regime in which electrical loading strongly couples forward and backward waves occurs in thin-film lithium niobate ... More
Engineering Three-Dimensional (3D) Out-of-Plane Graphene Edge Sites for Highly-Selective Two-Electron Oxygen Reduction ElectrocatalysisApr 09 2019Selective two-electron oxygen reduction reaction (ORR) offers a promising route for hydrogen peroxide synthesis. Defective sp2 carbon-based materials are attractive, low-cost electrocatalysts for this process. However, due to a wide-range of possible ... More
Electron transport through self-assembled monolayers of tripeptidesApr 09 2019We report how the electron transport through a solid-state metal/Gly-Gly-His tripeptide (GGH) monolayer/metal junction and the metal/GGH work function are modified by the GGH complexation with Cu2+ ions. Conducting AFM is used to measure the current-voltage ... More
High-frequency, resonant acousto-optic modulators fabricated in a MEMS foundry platformApr 09 2019We report the design and characterization of high frequency, resonant acousto-optic modulators (AOM) in a MEMS foundry process. The doubly-resonant cavity design allows us to measure acousto-optic modulation at frequencies up to 3.5 GHz with high modulation ... More
Tracking-free Determination of Microparticle Motion from Image VarianceApr 09 2019In this work, we use the standard deviation of image pixel intensity to analyse the speed, direction and surface-interaction of microparticles in fluid. First, we present an analytical model for estimating the total variance in the image space for directed ... More
Ionic Electro active Polymer-Based Soft Actuators and Their Applications in Microfluidic Micropumps, Microvalves, and Micromixers: A ReviewApr 09 2019This paper provides a detailed review on applications of ionic electroactive polymer (i-EAP) soft actuators as active elements of microfluidic micropumps, microvalves, and micromixers. The related works that have so far been presented by various research ... More
High sensitivity nanoporous gold metamaterials for plasmonic sensingApr 09 2019Surface Plasmon Resonance sensors are a well-established class of sensors which includes a very large variety of materials and detection schemes. However, the development of portable devices is still challenging as due to the intrinsic complexity of the ... More
Band structure of Ge$_{1-x}$Sn$_{x}$alloy: a full-zone 30-band $k$$\cdot$$p$ modelApr 09 2019A full-zone 30-band $k$$\cdot$$p$ model is developed as an efficient and reliable tool to compute electronic band structure in Ge$_{1-x}$Sn$_{x}$ alloy. The model was first used to reproduce the electronic band structures in Ge and $\alpha$-Sn obtained ... More
Correspondence: Reply to "On the understanding of current-induced spin polarization of 3D topological insulators"Apr 08 2019We reported the first spin potentiometric measurement to electrically detect spin polarization arising from spin-momentum locking in topological insulator (TI) surface states using ferromagnet/tunnel barrier contacts [1]. This method has been adopted ... More
Microwave-free vector magnetometry with nitrogen-vacancy centers along a single axis in diamondApr 08 2019We propose and demonstrate a microwave-free vector magnetometer that simultaneously measures all Cartesian components of a magnetic field using nitrogen-vacancy (NV) ensembles in diamond. With fixed crystallographic axes inherent to the solid-state system, ... More
Transient vibration imaging with time-resolved synthetic holographic confocal microscopyApr 08 2019We introduce a new modality for dynamic phase imaging in confocal microscopy based on synthetic optical holography. By temporal demultiplexing of the detector signal into a series of holograms, we record time-resolved phase images directly in the time ... More
Tunable and dynamic polarizability tensor for asymmetric metal-dielectric super-cylindersApr 08 2019We propose a novel type of bi-anisotropic hybrid metal-dielectric structure comprising dielectric and metallic cylindrical wedges wherein the composite super-cylinder enables advanced control of electric, magnetic and magnetoelectric resonances. We establish ... More
Radiopurity of an archeological Roman Lead cryogenic detectorApr 08 2019Archeological Roman Pb is known to be a suitable material for shielding the experimental apparata in rare event searches. In the last years the intrinsic radiopurity of this material was investigated using different technologies. In this work we applied ... More
Infrared hyperbolic metasurface based on nanostructured van der Waals materialsApr 08 2019Metasurfaces with strongly anisotropic optical properties can support deep subwavelength-scale confined electromagnetic waves (polaritons) that promise opportunities for controlling light in photonic and optoelectronic applications. We develop a mid-infrared ... More
Damping control in viscoelastic beam dynamicsApr 08 2019Viscoelasticity plays a key role in many practical applications and in different reasearch fields, such as in seals, sliding-rolling contacts and crack propagation. In all these contexts, a proper knowledge of the viscoelastic modulus is very important. ... More
Comparison of two early warning systems for regional flash flood hazard forecastingApr 07 2019The anticipation of flash flood events is crucial to issue warnings to mitigate their impact. This work presents a comparison of two early warning systems for real-time flash flood hazard forecasting at regional scale. The two systems are based in a gridded ... More
Phenomenological description of the dynamics of bipartite antiferromagnets in the limit of strong exchangeApr 06 2019Apr 09 2019The equation of motion of the staggered order parameter is derived in a step-by-step manner from the coupled Landau-Lifshitz-Gilbert dynamics of bipartite spin moments in the limit of strong antiferromagnetic exchange coupling. The derivation reconciles ... More
Phenomenological description of the dynamics of bipartite antiferromagnets in the limit of strong exchangeApr 06 2019The equation of motion of the staggered order parameter is derived in a step-by-step manner from the coupled Landau-Lifshitz-Gilbert dynamics of bipartite spin moments in the limit of strong antiferromagnetic exchange coupling. The derivation reconciles ... More
Lock-in-detection dual-comb spectroscopyApr 06 2019Dual-comb spectroscopy (DCS) is useful for gas spectroscopy due to high potential of optical frequency comb (OFC). However, fast Fourier transform (FFT) calculation of a huge amount of temporal data spends significantly longer time than the acquisition ... More
A high-performance MoS2 synaptic device with floating gate engineering for Neuromorphic ComputingApr 06 2019As one of the most important members of the two dimensional chalcogenide family, molybdenum disulphide (MoS2) has played a fundamental role in the advancement of low dimensional electronic, optoelectronic and piezoelectric designs. Here, we demonstrate ... More
Compact terahertz multiheterodyne spectroscopy using a Y-shape dual-comb configurationApr 06 2019Due to the fast and high resolution characteristics, the dual-comb spectroscopy attracts more and more interest since the first demonstration. In the terahertz frequency range where abundant absorption lines (finger-prints) of molecues are located, the ... More
Compact terahertz multiheterodyne spectroscopy using a Y-shape dual-comb configurationApr 06 2019Apr 09 2019Due to the fast and high resolution characteristics, the dual-comb spectroscopy attracts more and more interest since the first demonstration. In the terahertz frequency range where abundant absorption lines (finger-prints) of molecules are located, the ... More
Stoichiometry, Phase, and Texture Evolution in PLD-Grown Hexagonal Ferrite Films as a Function of Laser Process ParametersApr 05 2019Barium hexaferrite (BaFe12O19 or BaM) films were grown on c-plane sapphire (0001) substrates by pulsed laser deposition (PLD) to evaluate the effects of the laser fluence on their composition, structure, and magnetic properties. Continuum's Surelite pulsed ... More
III-nitride on silicon electrically injected microrings for nanophotonic circuitsApr 05 2019Nanophotonic circuits using group III-nitrides on silicon are still lacking one key component: efficient electrical injection. In this paper we demonstrate an electrical injection scheme using a metal microbridge contact in thin III-nitride on silicon ... More
Blue Microlasers Integrated on a Photonic Platform on SiliconApr 05 2019The main interest of group-III-nitride nanophotonic circuits is the integration of active structures and laser sources. A photonic platform of group-III-nitride microdisk lasers integrated on silicon and emitting in the blue spectral range is demonstrated. ... More
Q factor limitation at short wavelength (around 300 nm) in III-nitride-on-silicon photonic crystal cavitiesApr 05 2019III-nitride-on-silicon L3 photonic crystal cavities with resonances down to 315 nm and quality factors (Q) up to 1085 at 337 nm have been demonstrated. The reduction of the quality factor with decreasing wavelength is investigated. Besides the quantum ... More
Electrically conductive GNP/epoxy composites for out-of-autoclave thermoset curing through Joule heatingApr 05 2019The development of scalable Out of Autoclave (OoA) in situ thermoset curing methods are required to overcome important drawbacks related to the autoclave based processing methods typically used in industry. The incorporation of graphene, an electrothermal ... More
Electrically conductive GNP/epoxy composites for out-of-autoclave thermoset curing through Joule heatingApr 05 2019Apr 09 2019The development of scalable Out of Autoclave (OoA) in situ thermoset curing methods are required to overcome important drawbacks related to the autoclave based processing methods typically used in industry. The incorporation of graphene, an electrothermal ... More
Terahertz topological photonics for on-chip communicationApr 04 2019The computing speeds in modern multi-core processors and big data servers are no longer limited by the on-chip transistor density that doubles every two years following the Moores law, but are limited by the on-chip data communication between memories ... More
Ultraprecise Detection of Low Molecular Weight Antibodies Using Mid-IR Toroidal Plasmonic Meta-AtomsApr 04 2019Plasmonic metamaterials can be used to enhance mid-infrared sensors and detectors for immunosensing applications. The major challenge is to integrate these technologies in low-cost, compact, and promising platforms. In this study, as an emerging approach, ... More
Transparent Metasurfaces Counteracting Fogging by Harnessing SunlightApr 04 2019Surface fogging is a common phenomenon that can have significant and detrimental effects on surface transparency and visibility. It affects the performance in a wide range of applications including windows, windshields, electronic displays, cameras, mirrors, ... More
A highly accurate determination of absorbed power during nanomagnetic hyperthermiaApr 04 2019Absorbed power of nanoparticles during magnetic hyperthermia can be well determined from changes in the quality factor ($Q$ factor) of a resonator, in which the radiofrequency (RF) absorbent is placed. We present an order of magnitude improvement in the ... More
Superconducting properties of tin-based ENZ and hyperbolic metamaterialsApr 03 2019Recent experiments have demonstrated that the superconducting critical temperature may be improved in various metamaterial superconductor geometries. Here, we present the results of a study of tin-based metamaterial superconductors in the epsilon-near-zero ... More
Decomposing Temperature Time Series with Non-Negative Matrix FactorizationApr 03 2019During the fabrication of casting parts sensor data is typically automatically recorded and accumulated for process monitoring and defect diagnosis. As casting is a thermal process with many interacting process parameters, root cause analysis tends to ... More
Spurious Ferromagnetic Remanence Detected by Hybrid MagnetometerApr 03 2019Nuclear magnetic resonance detection in ultra low field regime enables the measurement of different components of a spurious remanence in the polymeric material constituting the sample container. A differential atomic magnetometer detects simultaneously ... More
Patterning of diamond like carbon films for sensor applications using silicon containing thermoplastic resist (SiPol) as a hard maskApr 03 2019Patterning of diamond-like carbon (DLC) and DLC:metal nanocomposites is of interest for an increasing number of applications. We demonstrate a nanoimprint lithography process based on silicon containing thermoplastic resist combined with plasma etching ... More
Focused Electron and X-ray Beam Crosslinking in Liquids for Nanoscale Hydrogels 3D Printing and EncapsulationApr 02 2019Additive fabrication of biocompatible 3D structures out of liquid hydrogel solutions has become pivotal technology for tissue engineering, soft robotics, biosensing, drug delivery, etc. Electron and X-ray lithography are well suited to pattern nanoscopic ... More
Valley-Hall In-Plane Edge States as Building Blocks for Elastodynamic Logic CircuitsApr 02 2019In this work, we investigate theoretically and demonstrate experimentally the existence of valley-Hall edge states in the in-plane dynamics of honeycomb lattices with bi-valued strut thickness. We exploit these states to achieve non-trivial waveguiding ... More
Electromagnetic Aspects of Practical Approaches to Realization of Intelligent MetasurfacesApr 02 2019We thoroughly investigate the electromagnetic response of intelligent functional metasurfaces. We study two distinct designs operating at different frequency regimes, namely, a switch-fabric-based design for GHz frequencies and a graphene-based approach ... More
Colloidal Quantum Dot Tandem Solar Cells Using CVD Graphene as An Atomically Thin Intermediate Recombination LayerApr 02 2019Two-terminal tandem cell architectures are believed to be an effective way to further improve the power conversion efficiency in solution processed photovoltaics. To design an efficient tandem solar cell, two key issues need to be considered. Firstly, ... More
Lead Halide Perovskite based Dynamic MetasurfacesApr 02 2019Lead halide perovskites (MAPbX3) are known to have high refractive index and controllable bandgap, making them attractive for all-dielectric and tunable metasurfaces. Till now, perovskite metasurfaces have only been used in structural colors. More interesting ... More
Enhancing the Three-Photon Luminesce via the Resonance in Lead Halide Perovskite MetasurfacesApr 02 2019Lead halide perovskites (MAPbX3) have emerged as promising materials for photovoltaic and optoelectronic devices. However, their exceptional nonlinear properties have not been fully exploited in nanophotonics yet. Herein we fabricate MAPbX3 perovskite ... More