Research interests include antenna design, wave propagation in complex media, computational modeling, biomedical microwaves device design and analysis, and subsurface sensing system design and intergration.
Satellite dish antennas
Reflector antenna discrete distortion determination : an iterative-field-matrix solution (with José Ángel Martinez-Lorenzo), I-PLUS Presentations (2006)
The idealized shapes of satellite reflector antennas are often distorted once they are placed in...
Groundwater--Pollution
Bimodal detection of underground contamination in two dimensional systems (with Maria Fernanda Serrano G., Ingrid Padilla, and Rafael Rodriguez Solis), SoilBED Presentations (2007)
An environmental issue that has reached interest in the academic and industry is groundwater contamination....
Imaging systems
FDTD simulation of a confocal microscope using a theta line scan (with Blair Simon, Charles DiMarzio, and Milind Rajadhyaksha), I-PLUS Presentations (2006)
We describe a 2-D computational model of the optical propagation in human skin from a...
Wave-based modeling, highlighting underground sensing and imaging (with Sara Wadia-Fascetti and Miriam Leeser), Research Thrust R1 Presentations (2006)
Characterization of anomaly in dispersive background with random rough surface (with Reza Firoozabadi, Eric L. Miller, and Ann W. Morgenthaler), Research Thrust R2 Presentations (2006)
This work addresses the subsurface imaging of the buried lossy dielectric objects embedded in the...
Validating four-zeros 2D FDTD model (with Maryam Jalalinia), Research Thrust R1 Presentations (2006)
In this work we model wave propagation in two-dimensional dispersive medium using FDTD (Finite Difference...
Antenna radiation patterns
Reflector antenna discrete distortion determination : an iterative-field-matrix solution (with José Ángel Martinez-Lorenzo), I-PLUS Presentations (2006)
The idealized shapes of satellite reflector antennas are often distorted once they are placed in...
Confocal microscopy
FDTD simulation of a confocal microscope using a theta line scan (with Blair Simon, Charles DiMarzio, and Milind Rajadhyaksha), I-PLUS Presentations (2006)
We describe a 2-D computational model of the optical propagation in human skin from a...
Radar
Suicide bomber detection using millimeter-wave radar (with Richard Sullivan, Morgan Galaznik, and Jose Ángel Martinez-Lorenzo), I-PLUS Presentations (2007)
Amidst the manifold threats currently afflicting public welfare, that of body-worn explosives is significant if...
Tunnel detection using cross borehole radar (with Clay Kurison, Arvin M. Farid, and Akram N. Alshawabkeh), I-PLUS Presentations (2006)
Shallow tunnels present both military and homeland security threats. Smugglers with intentions of avoiding border...
Three-dimensional imaging
The semi-analytic mode matching (SAMM) algorithm for efficient computation of nearfield scattering in lossy ground from borehole sources (with Ann W. Morgenthaler and He Zhan), Research Thrust R1 Presentations (2007)
The three dimensional semi-analytic mode matching (SAMM) algorithm is used to determine nearfield scattering from...
The semi-analytic mode matching (SAMM) algorithm for efficient computation of near field scattering from borehole antennas in lossy ground (with Ann W. Morgenthaler and He Zhan), Research Thrust R1 Presentations (2006)
The 3D semi-analytic mode matching (SAMM) algorithm is used to determine nearfield scattering from realistic...
Improvised explosive devices - Detection
Computational modeling and analysis of radar scattering by metallic body-worn explosive devices covered with wrinkled clothing (with Amanda J. Angell), I-PLUS Presentations (2007)
In this study, we address the problem of detecting bodyworn improvised explosive devices (IEDs) from...
Suicide bomber detection using millimeter-wave radar (with Richard Sullivan, Morgan Galaznik, and Jose Ángel Martinez-Lorenzo), I-PLUS Presentations (2007)
Amidst the manifold threats currently afflicting public welfare, that of body-worn explosives is significant if...
BomDetec - wide area surveillance and suicide bomber detection (with John Beaty and Richard Sullivan), I-PLUS Presentations (2006)
Amidst the manifold threats currently afflicting society, that of body-worn explosives is significant if not...
Conductivity
Validating four-zeros 2D FDTD model (with Maryam Jalalinia), Research Thrust R1 Presentations (2006)
In this work we model wave propagation in two-dimensional dispersive medium using FDTD (Finite Difference...
Finite differences
Validating four-zeros 2D FDTD model (with Maryam Jalalinia), Research Thrust R1 Presentations (2006)
In this work we model wave propagation in two-dimensional dispersive medium using FDTD (Finite Difference...
Epidermis - Imaging
FDTD simulation of a confocal microscope using a theta line scan (with Blair Simon, Charles DiMarzio, and Milind Rajadhyaksha), I-PLUS Presentations (2006)
We describe a 2-D computational model of the optical propagation in human skin from a...
Algorithms
The semi-analytic mode matching (SAMM) algorithm for efficient computation of nearfield scattering in lossy ground from borehole sources (with Ann W. Morgenthaler and He Zhan), Research Thrust R1 Presentations (2007)
The three dimensional semi-analytic mode matching (SAMM) algorithm is used to determine nearfield scattering from...
The semi-analytic mode matching (SAMM) algorithm for efficient computation of near field scattering from borehole antennas in lossy ground (with Ann W. Morgenthaler and He Zhan), Research Thrust R1 Presentations (2006)
The 3D semi-analytic mode matching (SAMM) algorithm is used to determine nearfield scattering from realistic...
Groundwater--Quality
Bimodal detection of underground contamination in two dimensional systems (with Maria Fernanda Serrano G., Ingrid Padilla, and Rafael Rodriguez Solis), SoilBED Presentations (2007)
An environmental issue that has reached interest in the academic and industry is groundwater contamination....
Cancer--Treatment--Technological innovations
Matlab-based finite difference frequency-domain method for microwave breast imaging (with Qiuzhao Dong), Research Thrust R1 Presentations (2007)
The FDFD electromagnetic model computes wave scattering by directly discretizing 's equations along with specifying...
Computer simulation--Technological innovations
Comparison and application in 3D Matlab-based finite-difference frequency-domain method (with Qiuzhao Dong, He Zhan, and Ann Morgenthaler), Research Thrust R1 Presentations (2006)
The FDFD electromagnetic model computes wave scattering by directly discretizing Maxwell's equations along with specifying...
Introducing the NUFDTD software package (with Seth Baum), Research Thrust R1 Presentations (2006)
FDTD is a successful technique for numerically simulating electromagnetic wave propagation. Our group at Northeastern...
Structural engineering
Simulating GPR for diagnosis of civil infrastructure (with Laura Carey, Kimberly Belli, and Sara J. Wadia-Fascetti), I-PLUS Presentations (2006)
At the present, a large proportion of our nation's bridges and roadways are falling into...
System failures (Engineering)
Forward time domain ground penentrating radar modeling of bridge decks for detecting deterioration (with Kimberly Belli and Sara J. Wadia-Fascetti), SoilBED Presentations (2007)
Ground penetrating radar (GPR) for nondestructive testing is a relatively young technology, especially with application...
Cancer--Diagnosis
Matlab-based finite difference frequency-domain method for microwave breast imaging (with Qiuzhao Dong), Research Thrust R1 Presentations (2007)
The FDFD electromagnetic model computes wave scattering by directly discretizing 's equations along with specifying...
Ground penetrating radar
Forward time domain ground penentrating radar modeling of bridge decks for detecting deterioration (with Kimberly Belli and Sara J. Wadia-Fascetti), SoilBED Presentations (2007)
Ground penetrating radar (GPR) for nondestructive testing is a relatively young technology, especially with application...
Simulating GPR for diagnosis of civil infrastructure (with Laura Carey, Kimberly Belli, and Sara J. Wadia-Fascetti), I-PLUS Presentations (2006)
At the present, a large proportion of our nation's bridges and roadways are falling into...
Transportation engineering
Simulating GPR for diagnosis of civil infrastructure (with Laura Carey, Kimberly Belli, and Sara J. Wadia-Fascetti), I-PLUS Presentations (2006)
At the present, a large proportion of our nation's bridges and roadways are falling into...
Tunnel Detection
Tunnel detection using cross borehole radar (with Clay Kurison, Arvin M. Farid, and Akram N. Alshawabkeh), I-PLUS Presentations (2006)
Shallow tunnels present both military and homeland security threats. Smugglers with intentions of avoiding border...
No subject area
Experimental Validation of a Numerical Forward Model for Tunnel Detection Using Cross-Borehole Radar (with Arvin Farid, Jose A. Martinez-Lorenzo, and Akram N. Alshawabkeh), Journal of Geotechnical and Geoenvironmental Engineering (2012)
The goal of this research is to develop an experimentally validated twodimensional (2D) finite difference...
Cryogenic to Room Temperature Effects of NBTI in High-k PMOS Devices (with Richard G. Southwick III, Shem T. Purnell, Blake Rapp, Ryan J. Thompson, Shane K. Pugmire, Ben Kaczer, Tibor Grasser, and William B. Knowlton), 2011 IEEE International Integrated Reliability Workshop Final Report (IRW) (2011)
We present experimental evidence that trapping mechanisms contributing to the negative bias temperature instability (NBTI)...
Electromagnetic Waves in Contaminated Soils (with Arvin Farid and Akram N. Alshawabkeh), Electromagnetic Waves Propagation in Complex Matter (2011)
Soil is a complex, potentially heterogeneous, lossy, and dispersive medium. Modeling the propagation and scattering...
Cross-Well Radar I: Experimental Simulation of Cross-Well Tomography and Validation (with Arvin Farid and Akram N. Alshawabkeh), Journal of Geotechnical and Geoenvironmental Engineering (2009)
This paper explains and evaluates the potential and limitations of conducting Cross-Well Radar (CWR) in...
Cross-Well Radar II: Comparison and Experimental Validation of Modeling Channel Transfer Function (with Arvin Farid, Sophia H. Zhan, and Akram N. Alshawabkeh), Journal of Geotechnical & Geoenvironmental Engineering (2009)
Close agreement between theory and experiment is critical for adequate understanding and implementation of the...