OpTeC sponsors a colloquium throughout the academic year. This is a forum where a wide range of optical science and engineering topics are discussed at a level that can be understood by a broad spectrum of optics students, staff, and faculty. The primary purposes are to train students to give effective scientific talks and to promote cross-disciplinary interactions of students, staff, faculty, and local industry employees. Speakers include MSU students, staff, and faculty, and visitors from external universities, research labs, and companies.

Join our colloquium held during academic semesters on Thursday at 4:10 pm.

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Dr. Stephen Schultz, Brigham Young University, will present

DYNAMIC MEASUREMENT OF SOFT BODY ARMOR USING OPTICAL FIBER SENSING

April 14, 2022

Abstract

The dynamics of ballistic impact in soft body armor are measured using a single optical fiber. The sensor system consists of an optical fiber with a strain sensor embedded into a silicone mat. The silicone mat is placed between the Kevlar shoot pack and the backing material. The friction between the optical fiber and the materials is used to determine the position of the back face deformation as a function of time. The measurements are collected at a repetition rate of 100 kHz. The measurements have been performed with ballistic gel and high-speed imaging to characterize the system. The system was also characterized on 30 shots at the U.S. Army Aberdeen Test Center (ATC) Light Armor Range Complex (LARC) in Aberdeen, MD.

Biography

Stephen M. Schultz received B.S. and M.S. degrees in electrical engineering from Brigham Young University, Provo, UT, in 1992 and 1994. He received a Ph.D. in electrical engineering from the Georgia Institute of Technology, Atlanta, GA, in 1999. Dr. Schultz worked at Raytheon Missile Systems from 1999 to 2001. He began teaching at Brigham Young University in 2002 and is currently a Full Professor with research interests in optical fiber devices, emphasizing optical fiber-based sensors. He has authored or coauthored over 100 publications and holds ten patents.

Past Speakers

Date Speaker Group Summary
3/31/22

Bradley Whitaker

MSU Electrical & Computer Engineering

How machine learning can help scientists whol shoot fish and insects with lasers

2/24/22

Tom Hausekn

Optica

Hot topics in optics and photonics

2/25/21

Jim Webb1 & Scott Wohlstein2 

1 G.L. Services, Hertfordshire, England
2 The Photonics Group,West Chester, OH

Using the LaserSafePC software for laser safety calculations 

Video

2/4/21

Brian D'Urso 

MSU Physics Department

Towards precision pulsed levitated optomechanics in a magneto-gravitational trap

1/21/21

Wataru Nakagawa

MSU ECE Department

Nanophotonics Applications and Sabbatical Exploration

Video

1/14/21

Nathan Kuehl

Bryan Scherrer

MSU Physics and ECE Dep'ts Kuehl: Troubleshooting, repair and calibration of Burleigh WA-1500 Wavemeter.

Scherrer: Model and simulation of wing-beat modulation lidar for making 3D maps of flying insects .

VIDEO
11/19/20 Dr. Charles Kankelborg MSU Physics Department

Desiging a far ultraviolet spectrometer for the sun as a starAbstract
Video

11/12/20 Dr. Ioannis Roudis MSU ECE Department  Nonlinear noise in coherent optical communications systems    Abstract
4/09/15 Dr. James G. Wessel Seagate Corporation Hard Disc-Drive Recording
3/19/15 Dr. Jake Jacobsen Synopsys, Optical Solution Group A review of optical design software at Synopsys
2/05/15 Dr. Mark A. Wistey ECE Department, University of Notre Dame Paths to record lasers and solar cells--and on cheap silicon
11/24/14 Dr. Olav Solgaard ECE Department, Stanford University Miniaturized endoscopes and implantable sensors for in-vivo studies of cancer biology
11/6/14 Dr. Kirk Knobelspiesse NASA Ames Research Center Cloud thermodynamic phase detection with polarimetrically sensitive passive sky radiometers.
10/30/14 Dr. Kris Merkel President & CEO S2 Corporation, Bozeman, MT S2 Extreme Bandwidth Analyzer and Correlator (EBAC):Updates on Improvements and Demonstrations
11/14/13 Dr. Upendra Singh NASA Langley Research Center Development of a pulsed 2-micron integrated-path differential absorption lidar for CO2 measurements
10/31/13 Qing Gu University of California - San Diego Semiconductor nanolasers for dense chip-scale integration
9/16/13 Dr. Jim Schwiegerling College of Optical Sciences - University of Arizona Leading edge optics for optimizing vision
5/14/13 Dr. John Egan Advanced Photonic Crystals The benefits of low temperature hydrothermal crystal growth
4/25/13 Dr. Edwin ("Ted") Heilweil National Institute of Standards and Technology (NIST) Time-resolved terahertz studies of carrier dynamics in P3HT and zinc-phthalocyanine/C60 nanolayered thin films
2/26/13 Dr. Larry Johnson and Dr. Mark Carroll Newport Corporation Part 1. Overview of laser diode technology and applications; Part 2. Job opportunities and desired skills for graduates at Newport/ILX Lightwave
2/8/13 Dr. Toralf Scharf Institute of Microtechnology, Ecole Polytechnique Federale de Lausanne, Switzerland From achromatic microlenses to submicron focusing: physical optics at the micro-scale