Joseph T. Siewick, Ph.D.

Expert in Technical Analysis of testable phenomena, Lasers and Electrooptics, Remote Sensing, Optical and Infrared Physics, Fiberoptic Phenomena, Clutter and Noise Suppression Filtering, System and Device Noise Floor Estimation, Trace Chemical Sensing, Interferometry, Signals Processing, Joining Materials, Thermal Management, Microwave Phenomena, Devices and Circuits, Molecular Energy Transfer and Storage, and Chemical Physics.

Special Skills:

Modeling and simulation of phenomena and rule based systems.


Ph.D., Chemical Physics, University of Maryland at College Park, 1986.
Major Field: Molecular Energy Exchange and Storage.
Minor Fields: Lasers and Electro-optics, Microwaves and RF, Thermodynamics, and Organic Reaction Mechanisms.
Research included: conceptualization, design, and fabrication of a laser and laser-based interferometric measurement system (IMS); the measurement of laser-photothermally induced refractive index fluctuations in a gas using the IMS; and the analysis and interpretation of the index fluctuation data leading to the determination of homonuclear diatomic molecular vibrational relaxation rates.

M.S., Physics, Georgetown University, Washington, DC, 1979.
Major Field: Non-equilibrium Superconductivity.
Research included: experimental design of a cryogenic vacuum chamber, thermometry measurement systems, and signal processing; fabrication of disordered thin Aluminum film superconducting samples; measurement of the inductive component attending the superconducting transition; and interpretation of the results by modeling a two-dimensional superconducting sample using an effective medium conductivity theory with complementary dispersed normal and superconducting regions.

B.S., Physics, Indiana Institute of Technology, Ft. Wayne, IN, 1975.
Minor concentrations in chemistry, electrical engineering, and applied mathematics.
Research included: conceptualization, design, fabrication, and testing of a device to measure the ratio of heat capacities (Cp/Cv) of gases using a resonant mechanical means.

Dr. Siewick has been a Chief Scientist at Alion Science and Technology Corporation since 2005. He left academia after defending his dissertation to begin a lengthy career developing novel sensing technology, sensors and sensing systems, mostly for military purposes. He is the inventor of the reactance-bridge-based Alion Magnetic Effects Sensor that relies on the changes in the impedance of a sensing coil over a range of AC frequencies to sense objects permeated by the field of the coil. His theoretical efforts over the past four decades are directed at the fundamentals of physics that forms the basis for relativity and quantum mechanics.

Publications, Seminars, Presentations, Inventions and Patents:
  • Siewick's Cosmology (the Gravity Part)
  • Siewick's Cosmology (the Particle Part), A Dimensional Uncertainty Explanation for Vacuum and Particles
  • Siewick's Cosmology (Perspective & Working Hypotheses): How the conundrums of prior physics lead to Gravity and Particle Calculus
  • Seminar: The New Perspective - a Consistent and More-General Theory that Unifies Relativity and Quantum Mechanics
  • Inventor of the Precision Variable Resistor and the Magnetic Effects Sensor, Patents applied for
  • Magnetic Effect Signatures of IED Components Sensed with the Alion Magnetic Effects Sensor (MES), presented at the October 2011 SENSIAC Military Sensing Symposia meeting in Washington, DC. (This paper is available through DTIC)
  • Draft Program Plans for the Defense Threat Reduction Agency (DTRA) Vegetative Effects Environmental Sensing program to explore the use of indigenous botanicals as bio-reporters of items of military interest
  • Harris Hyperradar and Finite Impulse Response Filters tutorial for DTRA senior executives
  • Smart Bullet Final Report on a competent munition that can be launched from naval deck guns
  • Development of a new technique for the study of V --> T relaxation of infrared inactive vibrations and its application to molecular hydrogen, Ph.D. Thesis (1986), available through University Microfilms, Order No. 86-25,736
  • Space Based Infrared Surveillance, 1991 NRL Project Final Report
  • Clutter and Noise Suppression Filters, Sensors EXPO Paper 1993 Proc.
  • Molecular Relaxation Rate Spectrometer Detection Theory, Sensors EXPO 1994 Proc.
  • Ablative Coatings for Deep Endo IR Seeker Interceptor Windows, BMDO SBIR Proposal
  • Physics Seminar: A new definition of a circle to explain space and time. 1975 at Indiana Tech
  • Chemistry Seminar: A new theory to explain solvation, suspension and precipitation. 1975 at Indiana Tech
  • Physics Seminar: Continuous in Time Markhov processes. 1978 at Georgetown University
Reports to BMDO/AQS:
  • Endoatmospheric IR Seeker - Interceptor Performance Limits
  • PtSi/InSb Seeker Acquisition Range Waveband Analysis
  • Infrared Missile Seeker/Interceptor Analysis

Copyright 2015, Joseph T. Siewick, Ph.D.

To contact, send email to 'JTSiewick [at] gmail [dot] com' or use the comments form.