Michael Goldflam
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View article: Continuous full-resolution two-color infrared detector
Continuous full-resolution two-color infrared detector Open
An apparatus is provided for nanoantenna-enhanced detection of infrared radiation. The apparatus includes one or more detector pixels. A plurality of detector pixels can constitute a focal plane array (FPA). Each detector pixel carries at …
View article: High-Sensitivity Hybrid Photodetection Using Graphene-Based Charge-Coupled Sensors.
High-Sensitivity Hybrid Photodetection Using Graphene-Based Charge-Coupled Sensors. Open
View article: Graphene-Based Charge-Coupled Devices for Sensitive Optical Detection.
Graphene-Based Charge-Coupled Devices for Sensitive Optical Detection. Open
View article: Tunable infrared pixels having unpatterned graphene layer and conductive metasurface
Tunable infrared pixels having unpatterned graphene layer and conductive metasurface Open
A monolithically integrated, tunable infrared pixel comprises a combined broadband detector and graphene-enabled tunable metasurface filter that operate as a single solid-state device with no moving parts. Functionally, tunability results …
View article: Optical devices enabled by vertical dielectric Mie resonators
Optical devices enabled by vertical dielectric Mie resonators Open
Dielectric resonators provide a building block for the development of low-loss resonant metamaterials because they replace lossy ohmic currents of metallic resonators with low-loss displacement currents. The spectral locations of electric …
View article: Tunable graphene-based infrared reflectance filter having patterned nanoantenna layer and unpatterned graphene layer
Tunable graphene-based infrared reflectance filter having patterned nanoantenna layer and unpatterned graphene layer Open
An actively tunable optical filter can control the amplitude of reflected infrared light. The filter exploits the dependence of the excitation energy of plasmons in a continuous and unpatterned sheet of graphene, on the Fermi-level, which …
View article: Apparatus and method to measure semiconductor optical absorption using microwave charge sensing
Apparatus and method to measure semiconductor optical absorption using microwave charge sensing Open
A time-resolved microwave reflectance apparatus comprises a pulsed or modulated optical source that irradiates a semiconductor sample with an excitation pump beam, a microwave oscillator that irradiates the sample with a continuous beam of…
View article: FAIR DEAL GC Thrust 2: APAM Modeling.
FAIR DEAL GC Thrust 2: APAM Modeling. Open
View article: Detection of high energy ionizing radiation using deeply depleted graphene–oxide–semiconductor junctions
Detection of high energy ionizing radiation using deeply depleted graphene–oxide–semiconductor junctions Open
Graphene’s linear band structure and two-dimensional density of states provide an implicit advantage for sensing charge. Here, these advantages are leveraged in a deeply depleted graphene–oxide–semiconductor (D2GOS) junction detector archi…
View article: Detection of High Energy Ionizing Radiation using Deeply Depleted Graphene-Oxide-Semiconductor Junctions
Detection of High Energy Ionizing Radiation using Deeply Depleted Graphene-Oxide-Semiconductor Junctions Open
Graphene's linear bandstructure and two-dimensional density of states provide an implicit advantage for sensing charge. Here, these advantages are leveraged in a deeply depleted graphene-oxide-semiconductor (D2GOS) junction detector archit…
View article: All Optical Neural Networks for Low Power Edge Computing
All Optical Neural Networks for Low Power Edge Computing Open
We developed a simplistic physics-based model of an all-optical neural network that mimics the encoder part of an autoencoder neural network for image compression. Our approach relies on the generation of a MATLAB-based model for both data…
View article: Three-Dimensional Meta-films ? A Discovery Platform for Structured Electromagnetic Materials.
Three-Dimensional Meta-films ? A Discovery Platform for Structured Electromagnetic Materials. Open
View article: Full-Resolution Two-Color Infrared Detector .
Full-Resolution Two-Color Infrared Detector . Open
View article: Plasmonic Response in Three-Dimensional Meta-Films.
Plasmonic Response in Three-Dimensional Meta-Films. Open
Shape effects due to the ellipse eccentricity, as well as localized surface plasmon resonance (LSPR) effects due to the effective plasmonic wavelength are observed in the scattering response. The structures were modeled using rigorous coup…
View article: JTu3A.64 ? 1 Dielectric Metasurfaces made of Vertically Oriented Germanium Ellipses.
JTu3A.64 ? 1 Dielectric Metasurfaces made of Vertically Oriented Germanium Ellipses. Open
View article: A Re-Configurable Infrared MetasurfaceUtilizing Acoustoelectric-Induced Charge Aggregation in Graphene.
A Re-Configurable Infrared MetasurfaceUtilizing Acoustoelectric-Induced Charge Aggregation in Graphene. Open
View article: Optimization and Prediction of Spectral Response of Metasurfaces Using Artificial Intelligence.
Optimization and Prediction of Spectral Response of Metasurfaces Using Artificial Intelligence. Open
or an extensive number of finite element method (FEM) simulations. These approaches, however, are computationally expensive and time consuming. As such, in this work, we present a novel methodology for determining the mechanical compressio…
View article: A Re-Configurable Infrared MetasurfaceUtilizing Acoustoelectric-Induced Charge Aggregation in Graphene.
A Re-Configurable Infrared MetasurfaceUtilizing Acoustoelectric-Induced Charge Aggregation in Graphene. Open
View article: A Re-Configurable Infrared Metasurface Utilizing Acoustoelectric-Induced Charge Aggregation in Graphene.
A Re-Configurable Infrared Metasurface Utilizing Acoustoelectric-Induced Charge Aggregation in Graphene. Open
View article: Strong Coupling in All-Dielectric Intersubband Polaritonic Metasurfaces
Strong Coupling in All-Dielectric Intersubband Polaritonic Metasurfaces Open
Mie-resonant dielectric metasurfaces are excellent candidates for both fundamental studies related to light-matter interactions and for numerous applications ranging from holography to sensing to nonlinear optics. To date, however, most ap…
View article: Optimization and Prediction of Spectral Response of Metasurfaces Using Artificial Intelligence
Optimization and Prediction of Spectral Response of Metasurfaces Using Artificial Intelligence Open
Hot-electron generation has been a topic of intense research for decades for numerous applications ranging from photodetection and photochemistry to biosensing. Recently, the technique of hot-electron generation using non-radiative decay o…
View article: Enhancing Graphene Plasmonic Device Performance via its Dielectric Environment.
Enhancing Graphene Plasmonic Device Performance via its Dielectric Environment. Open
coefficient are used to efficiently survey the effect of the surrounding dielectric on the tuning of the graphene plasmon. By investigating several common polar materials, optical phonons (i.e., the Reststrahlen band) of the dielectric sub…
View article: Intersubband Polaritonics in Dielectric Metasurfaces.
Intersubband Polaritonics in Dielectric Metasurfaces. Open
View article: Dielectric metasurfaces with high-Q toroidal resonances.
Dielectric metasurfaces with high-Q toroidal resonances. Open
View article: High Energy Ion and Gamma Detection using the Graphene-Insulator-Semiconductor Junction.
High Energy Ion and Gamma Detection using the Graphene-Insulator-Semiconductor Junction. Open
View article: Characterization of Induced Defects in InAsSb from Proton Irradiation using in-situ Lifetime measurements.
Characterization of Induced Defects in InAsSb from Proton Irradiation using in-situ Lifetime measurements. Open
View article: Graphene-Based PhotoFET for Optical and Radiation Detection.
Graphene-Based PhotoFET for Optical and Radiation Detection. Open
View article: Graphene Integration: Film Synthesis and Device Fabrication.
Graphene Integration: Film Synthesis and Device Fabrication. Open
View article: Microwave Based Lifetime Measurements and Analysis for Detector Materials.
Microwave Based Lifetime Measurements and Analysis for Detector Materials. Open
View article: Dielectric metasurfaces with high-Q toroidal resonances
Dielectric metasurfaces with high-Q toroidal resonances Open
Toroidal dielectric metasurface with a Q-factor of 728 in 1500 nm wavelength are reported. The resonance couples strongly to the environment, as demonstrated with a refractometric sensing experiment.