Jonathan Schuster Email & Phone Number

Established a robust two-and three-dimensional (2D/3D) numerical device modeling capability at the U.S. Army Research Laboratory (ARL) for simulations of complex infrared (IR) devices and focal plane arrays (FPAs) pertinent to the U.S. Army. The modeling capability was tied directly to manufacturing through collaborations with key industrial players and U.S. Army Research, Development and Engineering Centers (RDECs). Through these collaborations and integration into ARL’s internal material growth and device fabrication/processing, the modeling capability will successfully accelerate IR technology by:1) Understanding current state-of-the-art devices - i.e. discerning fundamental versus technological limitations2) Exploring the parameter space to achieve optimum performance3) Conceptualizing new IR device architectures that will provide improvements over the current state-of-the-art devicesUltimately, the 2D/3D numerical device modeling capability will form a core competency within ARL’s "Semiconductor Materials and Device Modeling Center," successfully accelerating IR detector technology by coupling numerical simulations with the efforts of key industrial players.

● Conducted electromagnetic and electrical modeling of photon-trapping (PT) structures to enhance broadband absorption and reduce dark current in mid-wavelength (0:5 - 5:0 um) infrared photodetectors. Utilized the finite-difference time-domain method to solve Maxwell’s equations and the finite element method to solve the drift diffusion equations. Engineered the use of the PT structure to yield a predetermined response by tuning the spectral sensitivity. Investigated the influence of the PT structure on optical crosstalk and crosstalk due to diffusion of photo-generated carriers. Research funded by BAE Systems (Lexington, MA) through the DARPA AWARE program and DRS Sensors & Targeting Systems, Inc. (Cypress, CA). Directly assisted in securing funds from DRS totaling $100,000.● Employed finite element simulations to perform physics based modeling of InAs/InAsSb nBn detectors, placing particular emphasis on studying the underlying physics in nBn detector arrays. Simulations revealed the presence of a lateral collection mechanism of photo-carriers that corroborates recent unexplained experimental results. Research partially funded by ARL through the Collaborative Research Alliance.● Designed and carried out experiments to test a new method for temporary hybridization of large format focal plane arrays (FPAs) to readout integrated circuits (ROICs) using a Karl Suss FC150 flip-chip bonder. ROICs can then be used repeatedly to test large format FPAs, reducing costs associated with discarding good ROICs on bad FPAs and good FPAs on bad ROICs. FPAs can then be hybridized to ROICs using standard indium bump technology. Research funded by Photronix, Inc. (Burlington, MA) through a U.S. Air Force phase II SBIR.

Graduate Teaching Fellow for EC463 Senior Design I. Duties included: ● Guided and evaluated senior level undergraduates on their senior design projects ● Graded student’s project reports ● Held office hours ● Assisted students in tackling the challenges associated with their projects

Developed new models to characterize polarization-mode dispersion (PMD) in optical fiber communication systems based on recent measurements of installed optical fibers which suggest that previous PMD generation models are unrealistic. Implemented advanced statistical methods to estimate system outages for the proposed models. Developed efficient numerical algorithms to assess the effects of polarization-mode dispersion in optical fiber communication systems. Used the algorithms to perform extensive numerical simulations to estimate the impact of PMD on various types of installed systems. Research partially funded by the “URGE to Compute” program through NSFs CSUMS grant.

Doctor Of Philosophy (Ph.D.), Electrical Engineering

Activities and Societies: Student Association of Graduate Engineers (SAGE)

Master Of Science (M.S.), Electrical Engineering

Activities and Societies: Student Association of Graduate Engineers (SAGE)

Bachelor Of Science (B.S.), Mathematical Physics, Cum Laude

Minor, Computer Science, Cum Laude