David Stegall, PhD

Lead Optics Specialist @ 3M

About

Optical engineer and physicist with over two decades of industry experience: • Expanded Beam Optics (EBO) for optical fiber array interconnectivity optimized for the data center and AI applications • Optical interconnects for on-board silicon photonics applications • 3-dimensional intra-oral digital impressioning with the 3M True Definition Scanner • OLED light extraction technology for flat panel displays and lighting • Fiber Bragg Grating filters for telecommunication applications and bio-sensing Skills: • Leadership for complex research activities • Communicating scientific and engineering projects to executives and customers • Zemax OpticStudio optical design: geometrical ray tracing and physical optics modeling • Familiarity with LightTools, Autodesk Inventor, and Siemens NX • Highly experienced in Matlab for creation of complex optical models and stand alone applications for lab/factory automation • Decades of lab experience in assembling unique optical applications

Country

United States

City

St Paul

Industry

Research

Skill

Optics, Optical Engineering, Interferometry, AFM, Physics, Labview, Zemax, Matlab, Manufacturing, Engineering, Nanotechnology, Thin Films, Sensors, LabVIEW

Experience

Lead Optics Specialist

2024-8 - Present · 2 yrs 2 mos

Greater Minneapolis-St. Paul Area

The lead optical engineer for 3M Expanded Beam Optic (EBO) for high-performance, low-maintenance, high-channel-count optical fiber array connectors in the data center market.

Lead Specialist

2022-3 - Present · 4 yrs 7 mos

St Paul, Minnesota, United States

I am the technical lead for 3M ceramic optical interconnects for silicon photonics applications.

Senior Optical Science Specialist

3M Corporate Research Materials Lab

2018-5 - 2022-3 · 3 yrs 11 mos

Greater Minneapolis-St. Paul Area

Technical lead for the Silicon Photonics Optical Interconnects using 3M ceramic technology

Senior Optical System Specialist

3M Oral Care Solutions Division

2012-6 - 2018-5 · 6 yrs

I am a primary contributor to the development of the 3M True Definition Scanner, an intra-oral digital impressioning system. I engineered the optical design of the intra-oral camera as well as the test/measurement systems for streamlining manufacturing of the hardware. As a result, I received a Circle of Technical Excellence and Innovation Award from 3M due to the dramatic improvements that the hardware provided over the previous system. product website: http://solutions.3m.com/wps/portal/3M/en_US/3M-ESPE-NA/dental-professionals/products/category/digital-materials/true-definition-scanner?WT.mc_id=www.3m.com/TrueDef/

Optical System Specialist

3M ESPE

2011-1 - 2012-5 · 1 yr 5 mos

ESPE

Research Specialist

3M CRML Austin

2004 - 2010 · 6 yrs

Corporate Research Materials Lab

2007-2010: Lead researcher within the 3M Corporate Research Materials Lab in collaboration with 3M Display and Graphics Business Lab for investigating light extraction films for organic LEDs. Based upon a roll-to-roll continuous replication process, photonic crystal films demonstrated a 2-fold improvement for OLED external efficiency. 2004-2007: Within 3M Corporate Research Materials Lab, I investigated applications for a novel technique of replicating large area surface structures with a sub-micron resolution limit.

Senior Research Engineer

3M CRML/OCTC/FOETC Austin

2000 - 2004 · 4 yrs

Corporate Research Materials Lab

Developed novel optical fiber filters for chromatic dispersion compensation, optical amplifier filters, add/drop optical multiplexing filters, and sensors.