NASA NTRS · 19790000590
Optical comparator uses holographic subtraction
Abstract
Integrated optical comparator compares reference and signal voltages by their effects on coherent light beam. If both voltages are same, beam is essentially unperturbed. If voltages differ, light is deflected by previously recorded hologram to detector.
Keep this discovery
Explore connections, maps & timelines
Vahey, D. W., Verber, C. M.. 1980-06-01. Optical comparator uses holographic subtraction. https://ntrs.nasa.gov/citations/19790000590
Cite the original work for its findings. Save a collection to share your selection of sources.