44 citations · 120 across the 9 of their papers we have counts for
10 papers
Analysis of Electromagnetic Scattering from Semiconductor Nanostructures by Solving Coupled Volume Integral and Two-fluid Hydrodynamic Equations
Doolos Aibek Uulu, Meruyert Khamitova, Rui Chen +3
Semiconductor-based plasmonic nanostructures support localized surface plasmon modes in the infrared region. Unlike metallic nanostructures, they support both free electrons and ho…
A Coupled Hybridizable Discontinuous Galerkin and Boundary Integral Method for Analyzing Electromagnetic Scattering
Ran Zhao, Ming Dong, Liang Chen +2
A coupled hybridizable discontinuous Galerkin (HDG) and boundary integral (BI) method is proposed to efficiently analyze electromagnetic scattering from inhomogeneous/composite obj…
Solution of Volume Integral and Hydrodynamic Equations to Analyze Electromagnetic Scattering from Composite Nanostructures
Doolos Aibek Uulu, Rui Chen, Liang Chen +2
A coupled system of volume integral and hydrodynamic equations is solved to analyze electromagnetic scattering from nanostructures consisting of metallic and dielectric parts. In t…
Analysis of Screening Effects on Terahertz Photoconductive Devices using a Fully-Coupled Multiphysics Approach
Liang Chen, Hakan Bagci
The terahertz current generated by a photoconductive device (PCD) saturates as the power of the input optical pump is increased. This behavior is induced by various screening effec…
Calculation of Photocarrier Generation from Optical Absorption for Time-domain Simulation of Optoelectronic Devices
Liang Chen, Ming Dong, Ran Zhao +1
Photocarrier generation rate in optoelectronic materials is often calculated using the Poynting vector in the frequency domain. However, this approach is not accurate in time-domai…
A Memory-efficient Implementation of Perfectly Matched Layer with Smoothly-varying Coefficients in Discontinuous Galerkin Time-Domain Method
Liang Chen, Mehmet Burak Ozakin, Shehab Ahmed +1
Wrapping a computation domain with a perfectly matched layer (PML) is one of the most effective methods of imitating/approximating the radiation boundary condition in Maxwell and w…
A hybridizable discontinuous Galerkin method for simulation of electrostatic problems with floating potential conductors
Liang Chen, Ming Dong, Ping Li +1
In an electrostatic simulation, an equipotential condition with an undefined/floating potential value has to be enforced on the surface of an isolated conductor. If this conductor…
Efficient Discontinuous Galerkin Scheme for Analyzing Nanostructured Photoconductive Devices
Liang Chen, Kostyantyn Sirenko, Ping Li +1
Incorporation of plasmonic nanostructures in the design of photoconductive devices (PCDs) has significantly improved their optical-to-terahertz conversion efficiency. However, this…
Multiphysics Simulation of Plasmonic Photoconductive Devices using Discontinuous Galerkin Methods
Liang Chen, Hakan Bagci
Plasmonic nanostructures significantly improve the performance of photoconductive devices (PCDs) in generating terahertz radiation. However, they are geometrically intricate and re…
Steady-state Simulation of Semiconductor Devices using Discontinuous Galerkin Methods
Liang Chen, Hakan Bagci
Design of modern nanostructured semiconductor devices often calls for simulation tools capable of modeling arbitrarily-shaped multiscale geometries. In this work, to this end, a di…