|February 2011 – present||Consulting and Contract Engineering,
Review, analyze and recommend optical measurement methods for use in new and revised products. Review and analyze ophthalmic product concepts. Optical design, layout, prototyping, troubleshooting, and data analysis.
|May 2004 – February 2010||Carl Zeiss Meditec, Inc.,
Senior Staff Scientist
Propose and prototype new diagnostic devices, these devices generally involving optical imaging of the human eye followed by image analysis. Primarily responsible for the integrity of the imaging process, from optics to digitized images. Produce prototypes for clinical evaluation. Evaluate outside proposals concerning both devices and new applications. Maintain currency in the relevant literature on optical imaging and ophthalmic diagnostics. Prepare patent applications. Monitor intellectual property situation.
|February 2004 – April 2004||Systron Donner,
Senior Sensor Designer (Mechanical Engineer IV)
Designed high accuracy quartz micromachined (MEMS) sensors, including electronics and quartz sensing elements, using finite element analysis (FEA).
|November 2000 – May 2003||Integrated Micromachines,
Senior Staff Scientist
Responsible for electromagnetic position-sensing and feedback control of MEMS optical alignment mirrors, and for system integration. Participated in the specification, design, and testing of mixed-signal custom integrated circuits (ASICs). Developed semi-automated production testing of mirrors and control electronics. Evaluated application of this MEMS mirror array for adaptive optics. Completed mechanical design and initial analog and digital electronic architecture for a MEMS/ASIC angular rate sensor. Wrote sections of patent applications, and documentation for electronics, control systems, firmware, and software.
|May 1999 – November 2000||Frederick Seitz Materials Research Laboratory,
Scientific Staff in the Laser Facility
Worked with laboratory users in the design, execution, and analysis of optical measurements using pulsed lasers. Maintained near state-of-the-art capapbilities in standard techniques such as ellipsometry, reflectance, transmittance, time-resolved photoluminescence, Raman scattering, and optical pump-probe measurements. Developed a custom measurement system using ultrafast lasers to generate acoustic pulses in a multi-layer structure, and tracking their propagation using the optical coherence of the light reflected from acoustic wavefronts. Prepared short courses, presentations, and articles for publication.
|May 1994 – April 1999||Department of Physics, University of Illinois,
Studied the relaxation of optically-produced excitations in cuprite, a semiconductor. Developed a time-correlated photon counting system to measure the absolute number of excitations as a function of time, photon energy, and spatial position. Proposed a new explanation of the photoluminescence in cuprite, and validated it through quantitative measurements and detailed computer simulation.
|August 1990 – May 1994||Department of Physics, University of Illinois,
National Science Foundation Predoctoral Fellow
Member of a tightly collaborative group using pulse-echo nuclear magnetic resonance to determine the mechanism of high-temperature superconductivity. Maintained the digital signal processing equipment and its interface to personal computers. Designed and laid out a circuit board implementing a programmable pulse-sequence generator.
|August 1992 – May 1993||Department of Physics, University of Illinois,
Taught laboratory and classroom sections of the introductory physics course for students of the life sciences.
|September 1988 – March 1989||Department of Mathematics, the Ohio State University,
Student Instructional Aide
Taught classroom sections of an algebra course for non-science majors.
|Summer 1988||Department of Materials Science,
Carnegie Mellon University, Pittsburgh, PA|
National Science Foundation Undergraduate Research Fellow
Evaluated X-ray diffraction as a quality test for coatings of magnetic storage disks.
|April 1988 – June 1988||Department of Physics, the Ohio State University,
Laboratory Teaching Assistant
Taught laboratory sections of the introductory physics course for students of the life sciences.
|Writes C. Reads and maintains C++, Pascal, Scheme, FORTRAN, Visual Basic, LabView. User of Microsoft and Linux workstations. Familiar with MatLab, ZEMAX, Mathematica, SPICE, SolidWorks, AutoCAD, ANSYS, and other analysis tools.|
|The University of Illinois,
Ph.D. in Physics, May 1999. GPA 3.94/4.
M.S. in Physics, August 1990. GPA 4.00/4.
|The Ohio State University,
B.S. in Engineering Physics, specializing in Materials Science, June 1989. GPA 3.98/4.
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