Notable Research

Design of a Multicharged Ion Transport Line and Diagnostic System
Advisor: Dr. Hani Elsayed-Ali
Old Dominion University, 2013-2014

Multicharged ions systems can be used in many applications from biomedicine (cancer radiotherapy) to materials processing (lithography and nanotechnology). This research contributes to the development of multicharged ion system hardware to detect ion energy and charge, focus ion beams, and detect ion spatial distribution for use with a spark-assisted multicharged ion plasma source at the Applied Research Center at Jefferson Laboratory.

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Figure: Dense Plasma Containing Carbon Ions

Electrical Engineering Thesis / Senior Design Project: Design of a Multicharged Ion Transport Line and Diagnostic System, Department of Electrical Engineering, 2014

Talk: Proposed Design of a Multicharged Ion Transport Line and Diagnostic System, Presented to the Old Dominion University Electrical Engineering Department, November 21, 2013

Poster: SIMION Simulations for Multicharged Ion Transport Line and Diagnostic System, presented at American Vacuum Society Regional Meeting, Jefferson Laboratory, Newport News, Virginia, April 3, 2014



Semiconductor Device Design and Fabrication
Advisor: Dr. Sylvain Marsillac
Old Dominion University, 2013-2014

Design and fabrication process of a p-type semiconductor wafer involving cleaning, dry and wet oxidation, impurity doping, photolithography, chemical etching, and metallization processes.

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Figure: Semiconductor Wafer with 324 Devices
(Resistors, P-N Diodes, MOSFETs, and MOS Capacitors)



Optical Forces from Adiabatic Rapid Passage and Bichromatic Light
Advisor: Dr. Harold Metcalf
Stony Brook University, Summer 2013

Optical forces on atoms and molecules allows for a deeper understanding of the atom with applications to quantum computing and laser cooling. Optical forces on atoms can be accomplished using many methods, including adiabic rapid passage through frequency swept light pulses and bichromatic light (two light beams at different frequencies). These specific methods rely on stimulated emission instead of spontaneous emission to provide comparatively larger forces on atoms.

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Figure: Helium Atoms Displaced Due to Adiabatic Rapid Passage Optical Forces

Talk: Optical Forces from Adiabatic Rapid Passage and Bichromatic Light, Stony Brook University Physics Department, August 2013



Second Order Correlation Function for Quasi One-Dimensional Anderson Localization
Advisor: Dr. Mark Havey
Old Dominion University, 2012-2013

Rotation of a ground glass diffuser creates a time-dependent chaotic light field simulating a thermal light source. Second order time correlation g(2)(τ) = 2 for shorter times and g(2)(τ) = 1 for longer times. A similar approach to study g(2)(τ) is planned for quasi one-dimensional Anderson Localization for trapping of light in a cloud of atoms. Research in this field will provide applications to quantum memory and computing.

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Figure: Second Order Correlation Measurement of Coherent Versus Simulated Chaotic Light

Talk: Second Order Time Correlation Measurements of a Simulated Thermal Light Source, presented at the Optical Society of America – Frontiers in Optics Conference, Rochester, New York, October 15, 2012



Development of Nuclear Magnetic Resonance System for CLAS12 Polarized Target
Advisor: Dr. Stephen Bueltmann
Old Dominion University, 2012-2013

Software development for CLAS12 Polarized Target projects at Jefferson Lab was developed. This software is used to remotely control nuclear magnetic resonance systems for nucleon polarization measurement, data acquisition, and analysis.



Cosmic Ray Tracking and Calibration of Jefferson Lab CLAS12 Region II Drift Chamber
Advisor: Dr. Gail Dodge and Dr. Robert Bennett
Old Dominion University, 2010-2012

With the upgrade to a higher electron beam energy at Jefferson Lab, the CEBAF Large Acceptance Spectrometer must also be upgraded to detect particles of greater energy. Construction, testing, and calibration for the CLAS12 Region II Drift Chambers were conducted. Multiple tracking algorithms were then implemented to track incident cosmic raysfrom space through the CLAS12 Region II Drift Chamber for quality assurance and calibration purposes using scintillating paddles and photomultiplier tubes.

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Figure: Cosmic Ray Track Through a CLAS12 Region II Drift Chamber

Physics Senior Thesis: Cosmic Ray Tracking and Calibration of Jefferson Lab CLAS12 Region II Drift Chamber, Old Dominion University Department of Physics, 2012

Talk: Cosmic Ray Tracking and Calibration of Jefferson Lab CLAS12 Region II Drift Chamber, presented to Old Dominion University Department of Physics, April 24, 2012



National Lightning Detection Network Data Processing for NASA
Advisor: Dr. Linda Vahala
Old Dominion University, 2011-2012

Extensive research has been conducted regarding the safety and effects of lightening on airplanes; however, most of this research was conducted when airplanes were made of aluminum. Now, airplanes are constructed of a lightweight composite material. This composite shell no longer shields the electrical components within the airplane from magnetic fields, resulting in potential damage and malfunction of necessary flight instrumentation when struck by lightening. Data analysis of every recorded lightening strike within a year allows for patterns to be determined for airplanes to safely avoid areas known to have increased thunderstorms.



Three Dimensional Model Printer Construction for Use with Conducting Materials
Advisor: Dr. Wes Lawrence
Old Dominion University, 2011

A three dimensional printer was constructed from the ground up for use with conducting materials. A direct application of this ability to print three-dimensional objects with dielectric and conducting materials gives the capability of printing circuit boards quickly, cheaply, and efficiently. Therefore, the cost and time of prototyping electrical circuit boards can be dramatically decreased.



Infrasonic Measurement System Development
Advisor: Dr. Qamar Shams
National Aeronautic and Space Administration – Langley Aerospace Research Student Scholars, 2010

An infrasonic detection system is developed through the installation of an array of sensors, collection of data, and data analysis.



The Effects of Stir Paddle Turbulent Mixing of a Polymer Solution on its Polymer Properties
Advisor: Dr. Robert Bryant
Governor’s School for Science and Technology and National Aeronautics and Space Administration, 2008-2010

Efficient mixing of a growing polymer in a chemical reactor vessel is a function of stir speed, stir paddle shape, and solution viscosity. Several stir paddles were designed to increase turbulence and decrease shear flow to yield a polymer with the greatest thermal and tensile properties.

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Figure: Stir Paddle Designs

Talk: The Effects of Stir Paddle Turbulent Mixing of a Polymer Solution on its Polymer Properties, presented to the Governor’s School for Science and Technology, 2010

Talk: The Effects of Stir Paddle Turbulent Mixing of a Polymer Solution on its Polymer Properties, presented at the Junior Science and Humanities Symposia (JSHS), Harrisonburg, Virginia, 2010