297 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Wright-Patterson Air Force BaseUS31 papers
- United States Air Force Research LaboratoryUS16 papers
- Wesleyan UniversityUS9 papers
- Massachusetts Institute of TechnologyUS4 papers
- U.S. Air Force Research Laboratory Materials and Manufacturing Directorate4 papers
- Columbia UniversityUS3 papers
- The University of Texas at San AntonioUS3 papers
- University of Alabama in HuntsvilleUS3 papers
- Wright Laboratory3 papers
- KBR (United States)US2 papers
- The Ohio State UniversityUS2 papers
- University of Central FloridaUS2 papers
39 papers
Demonstration of high output power (3.75 W/mm) with 31.8% PAE in Ga-Polar AlGaN/GaN HEMTs on sapphire at 94 GHz
Ruixin Bai, Swarnav Mukhopadhyay, Michael Elliott +12
In this work, a recessed-gate Ga-polar AlGaN/GaN high-electron-mobility transistor (HEMT) on sapphire incorporating an AlGaN back-barrier for W-band operation is demonstrated. The…
A comparison of a commercial hydrodynamics TCAD solver and Fermi kinetics transport convergence for GaN HEMTs
Ashwin Tunga, Kexin Li, Nicholas C. Miller +3
Various simulations of a GaN HEMT are used to study the behaviors of two different energy-transport models: the Fermi kinetics transport model and a hydrodynamics transport model a…
Transferrable AlGaN/GaN HEMTs to Arbitrary Substrates via a Two-dimensional Boron Nitride Release Layer
Michael J. Motala, Eric Blanton, Al Hilton +8
Mechanical transfer of high performing thin film devices onto arbitrary substrates represents an exciting opportunity to improve device performance, explore non-traditional manufac…
Light-induced optical switching in an asymmetric metal-dielectric microcavity with phase-change material
R. Thomas, A. A. Chabanov, I. Vitebskiy +1
We propose an infrared power switch based on an asymmetric high-Q microcavity incorporating a metallic nanolayer in close proximity to a layer made of a phase-change material (PCM)…
Vicinal metal surfaces as potential catalysts for phosphorene epitaxial growth
Daniel Hashemi, Gene Siegel, Michael Snure +1
Phosphorene, a single layer of black phosphorous (BLK-P), has a significant potential for flexible and tunable electronics, but attempts to grow it epitaxially have been unsuccessf…
Free-Space Wide-Aperture Sheet-Isolator Based on a Multilayered Resonant Cavity
R. Kononchuk, C. Pfeiffer, I. Anisimov +3
We introduce the first conceptual design of a free-space thin-sheet isolator with unlimited aperture and the possibility of a broadband omnidirectional rejection of the backward pr…
Semiparametric CRB and Slepian-Bangs formulas for Complex Elliptically Symmetric Distributions
Stefano Fortunati, Fulvio Gini, Maria Greco +2
The main aim of this paper is to extend the semiparametric inference methodology, recently investigated for Real Elliptically Symmetric (RES) distributions, to Complex Elliptically…
Improving the performance of GeSbTe materials via nickel doping: Towards RF-compatible phase-change devices
Pengfei Guo, Joshua A. Burrow, Gary A. Sevison +6
High-speed electrical switching of Ge2Sb2Te5 (GST) remains a challenging task due to the large impedance mismatch between the low-conductivity amorphous state and the high-conducti…
Donors and Deep Acceptors in -Ga2O3
Adam T. Neal, Shin Mou, Subrina Rafique +9
We have studied the properties of Si, Ge shallow donors and Fe, Mg deep acceptors in -Ga2O3 through temperature dependent van der Pauw and Hall effect measurements of samples gr…
Asymmetric Transmission in Photonic Structures with Phase-Change Components
N. Antonellis, R. Thomas, M. A. Kats +2
We consider the scattering problem for an asymmetric composite photonic structure with a component experiencing a thermally driven phase transition. Using a numerical example, we s…
Lower-Hybrid Drift Instability and Macroscopic Flow of Colliding Magnetized Plasmas
Mikhail Malkov, Vladimir Sotnikov
Microscopic instability and macroscopic flow pattern resulting from colliding plasmas are studied analytically in support of laboratory experiments. The plasma flows are assumed to…
Signatures of Plexcitonic States in Molecular Electroluminescence
Justin P. Bergfield, Joshua R. Hendrickson
We develop a quantum master equation (QME) approach to investigate the electroluminesence (EL) of molecules confined between metallic electrodes and coupled to quantum plasmonic mo…
Electronic and Optical Properties of Vacancy Defects in Transition Metal Dichalcogenides
M. A. Khan, Mikhail Erementchouk, Joshua Hendrickson +1
A detailed first-principle study has been performed to evaluate the electronic and optical properties of single-layer (SL) transition metal dichalcogenides (TMDCs) (MX; M= tr…
Relaxed Bi-quadratic Optimization for Joint Filter-Signal Design in Signal-Dependent STAP
Sean M. O'Rourke, Pawan Setlur, Muralidhar Rangaswamy +1
We investigate an alternative solution method to the joint signal-beamformer optimization problem considered by Setlur and Rangaswamy[1]. First, we directly demonstrate that the pr…
Polarization dependent femtosecond laser modification of MBE-grown III-V nanostructures on silicon
Sander R. Zandbergen, Ricky Gibson, Babak Amirsolaimani +4
We report a novel, polarization dependent, femtosecond laser-induced modification of surface nanostructures of indium, gallium, and arsenic grown on silicon via molecular beam epit…
Self-Regulated Transport in Photonic Crystals with Phase-Changing Defects
Roney Thomas, Fred M. Ellis, Ilya Vitebsky +1
Phase changing materials (PCM) are widely used for optical data recording, sensing, all-optical switching, and optical limiting. Our focus here is on the case when the change in th…
Fundamental Efficiency Limits for Small Metallic Antennas
Carl Pfeiffer
Both the radiation efficiency and bandwidth of electrically small antennas are dramatically reduced as the size decreases. Fundamental limitations on the bandwidth of small antenna…
A versatile, inexpensive integrated photonics platform
Jeffrey M. Shainline, Sonia M. Buckley, Nima Nader +6
We present an approach to fabrication and packaging of integrated photonic devices that utilizes waveguide and detector layers deposited at near-ambient temperature. All lithograph…
Functorial Hierarchical Clustering with Overlaps
Jared Culbertson, Dan P. Guralnik, Peter F. Stiller
This work draws inspiration from three important sources of research on dissimilarity-based clustering and intertwines those three threads into a consistent principled functorial t…
Waveguide photonic limiters based on topologically protected resonant modes
U. Kuhl, F. Mortessagne, E. Makri +2
We propose a concept of chiral photonic limiters utilising topologically protected localised midgap defect states in a photonic waveguide. The chiral symmetry alleviates the effect…
Experimental Realization of a Reflective Optical Limiter
Jarrett H. Vella, John H. Goldsmith, Andrew T. Browning +4
Optical limiters transmit low-intensity light, while blocking laser radiation with excessively high intensity or fluence. A typical passive optical limiter absorbs most of the high…
Hypersensitive Transport in Photonic Crystals with Accidental Spatial Degeneracies
Eleana Makri, Kyle Smith, Andrey Chabanov +2
A localized defect mode in a photonic-layered structure develops nodal points. Placing a thin metallic layer at such a nodal point results in the phenomenon of induced transparency…
Movable thin films with embedded high-index microspheres for super-resolution microscopy
Kenneth W. Allen, Navid Farahi, Yangcheng Li +5
Microsphere-assisted imaging emerged as a surprisingly simple way of achieving optical super-resolution imaging. In this work, we use movable PDMS thin films with embedded high-ind…
Subwavelength metal grating metamaterial for polarization selective optical antireflection coating
Wonkyu Kim, Junpeng Guo, Joshua Hendrickson
A metamaterial structure consisting of a one-dimensional metal/air-gap subwavelength grating is investigated for optical antireflection coating on germanium substrate in the infrar…