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Updated: May 27, 2026
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Subsurface Defect Localization by Structured Heating Using Laser Projected Photothermal Thermography
Published on: May 15, 2017
Note: high capacity digital laser beam steering system
D Hebert1, P Cantu, C Washington
1Department of Electrical and Computer Engineering, Louisiana State University, Baton Rouge, Louisiana 70803, USA.
The Review of Scientific Instruments
|December 2, 2011
Abstract:
The combination of liquid crystal cells with polarizing cube beam splitters has been used to direct a beam of light to multiple directions. The polarization at each beam splitter is controlled by applying a signal to a corresponding liquid crystal cell. Ten cascaded stages have deflected a HeNe laser beam to 1024 digitally selectable angles.
