IR laser heating for thermal development and erasure of data is presented with results showing holographic diffraction efficiency, signal to noise ratio, thermoplastic surface condition, recording area size and IR energy requirements.
D. S. Lo,
L. H. Johnson,
R. W. Honebrink,
"Infrared Laser Heating For Thermoplastic Recording", Proc. SPIE 0123, Optical Storage Materials and Methods, (13 December 1977); doi: 10.1117/12.955803; https://doi.org/10.1117/12.955803