Stephen D. Mellin             111 MacDade Blvd. Apt. C-1, Folsom, PA 19033

         Cell: (610)462-3061 - stephen_mellin@yahoo.com

 

Objective

Seeking a Technical Lead position in Research and Development as an Electro-Optical technologies Subject Matter Expert.

 

Education

UniversityMajor                     DegreeDate

Univ. of Alabama, Huntsville      Optical EngineeringPh.D.2001

Lehigh University      PhysicsM.S.1991

Lehigh University      Electrical EngineeringB.S.1989

 

Professional Experience

 

The Boeing Company, Philadelphia, Pennsylvania (2001- Present)

 

Infrared/Electro-Optical (IR/EO) Engineer 

·  Provided engineering support in the field of rotorcraft and fixed-wing survivability. Platforms include V-22, CH-47, A160, C-130, and Advanced Vertical Lift.

·  Performed analyses and software development for infrared and electro-optical/visual signature prediction and optimization of aircraft thermal signature reduction. Developed mathematical modelling techniques for optical detection & infrared tracking/lock-on predictions in support of critical design verification.

·  Simulated plume flowfield dynamics with associated chemical kinematics and computational fluid dynamics (CFD) to characterize infrared signature in rotorcraft survivability trade studies.

·  Responsible for assessing emissivity and reflectivity of infrared treatments, coatings, blankets, and aerogels applied to aircraft.

·  Designed & performed reflectometry and thermal emissometry tests on IR coatings.

·  Assessed the physics of infrared signature suppression techniques in IR engine suppressor designs.

·  Developed aircraft simulator software and graphical user interface to assess aircraft survivability against ballistic threats and characterize endgame scenarios.

 

·              Electromagnetic Environmental Effects (EEE) Engineer

·  Verified compliance of EEE requirements for critical components of various military rotorcraft. Platforms include V-22 and CH-47.

·  Lightning indirect effects analysis

o  Developed solid model for finite-difference time-domain (FDTD) analysis

o  Developed cable susceptibility modeling algorithms

o  Developed data reduction and presentation routines for final report

·  Antenna Modeling and Link Analysis

o  Developed three dimensional computational model of the V-22 and CH-47 for electromagnetic simulation using Computer Simulation Technology (CST) software

o  Developed three dimensional antenna models for simulating install patterns and coupling loss between antennas

o  Performed Line of sight and beyond line of sight link budget analyses using Satellite Tool Kit (STK)

o  Developed interface program for importing three dimensional installed patterns from CST into STK

o  Developed a program for importing flight data from a V-22 aircraft for simulating the flight profile of the aircraft in STK.  Imported flight profile was used to evaluate a SATCOM drop outs in flight.  The simulations replicated the drop outs and were used to evaluate multiple solutions.

 

Structural Materials Test Engineer

·  Provided engineering support for the Boeing Structural Materials Test Lab. Platforms include V-22, CH-47, 777X, and 787.

Responsibilities:

o     Conducted Materials Static & Fatigue Testing on Metallic & Laminate Composite specimens / components

o     Performed Tensile, Compression, Shear, Bending, Delamination & Thermal Cycling Testing

o     Completed Stress / Strain analyses using Strain Gage & 3-D Video Correlation techniques

o     Failure Mode & Crack Propagation analyses

o     Specimens included Commercial & Military aircraft applications

o     Prepared & Completed Test Readiness Reviews

o     Generated & Delivered formal test reports

 

 

University of Alabama in Huntsville, Huntsville, Alabama (1993-2001)

 

Graduate Research/Teaching Assistant - Departments of Electrical and Computer Engineering and Physics

·  Designed diffractive optic beam-splitters used for infrared sensor applications and diffractive optic diffusers for use in stereoscopic 3D displays.

·  Designed advanced software for implementing rigorous electromagnetic solutions for diffractive optical elements with sub-wavelength features.

·  Worked in the field of imaging polarimetry characterizing the polarization properties of optical devices.

These devices include:

o          Waveguides & Waveguide beam-splitters

o          Optical fibers and liquid crystals

·  Instructed students in undergraduate level electrical engineering and physics laboratory courses.

Topics of instruction included:

o          Techniques in optics

o          Analog and digital electronics

o          Mechanics and thermodynamics

 

Technical Skills

·  Languages: Java, Fortran, C/C++, Visual Basic, Assembly

·  Technical software:  Matlab, Mathematica, MathCad, CATIA, Hypermesh, Patran

·  Microsoft Office: Word, Excel, PowerPoint, Access

·  Computers (operating systems): PC’s (DOS, Windows), Macintosh (Mac OS), SUN and other workstations (LINUX, UNIX).

 

 

Professional and Honor Society Memberships

·   Optical Society of America (OSA)

·   Institute of Electrical and Electronic Engineers (IEEE)

·   Tau Beta Pi

·   Eta Kappa Nu

 

Clearance

·              Active DoD secret security clearance since 2003

 

Publications

1.                     Cho, D.J., Legg, D., Sheffield, R.E., Mellin, S.D., Kenzakowski, D.C., Cavallo, P.A., and Dash, S.M., “Plume Development and Impact on V-22 Infrared Signature Suppression and Survivability,” Proceedings of MSS Specialty Group on Infrared Countermeasures Conference, Monterey, CA, June 2002. 

 

2.                     S. D. Mellin and G. P. Nordin, “Limits of Scalar Diffraction Theory and an Iterative Angular Spectrum Algorithm for Finite Aperture Diffractive Optical Element Design,” Optics Express 8(13), pp. 705-722 (2001).

 

3.                   S. D. Mellin, Design and Analysis of Finite Aperture Diffractive Optical Elements, Ph.D. dissertation, (University of Alabama in Huntsville, 2001).

 

Conferences (published Abstracts or Summaries)

1.     S. D. Mellin and G. P. Nordin, “Rigorous Electromagnetic Analysis and the Design of Finite-Aperture Diffractive Optical Elements,” in OSA Annual Meeting and Exhibit 1998 (Optical Society of America, Washington D.C., 1998), p. 127.
 

2.     S. D. Mellin and G. P. Nordin, “Rigorous Electromagnetic Analysis and the Limits of Scalar Design of Finite Aperture Diffractive Phase Optical Elements,” EOS Topical Meeting on Diffractive Optics (European Optical Society Topical Meetings Digest Series: Volume 22, 1999), p. 221.