Shawn McDermed

Applications Development Manager, 4D Technology

Shawn McDermed is Applications Development Manager at 4D Technology, Tucson, AZ.

A transparent dome mounted for measurement with a short coherence laser interferometer.
Test & Measurement

Short coherence laser interferometer measures transparent domes

July 14, 2020
Combining a short coherence source with an adjustable path-match mechanism makes it possible to isolate and measure the front and back surfaces of transparent components as thin...