An interferometric confocal method and assembly for terabyte volume optical data memories couples two-beam spectral interferometry to chromatic confocal technology and permits a longitudinal splitting of foci in the memory volume, with the foci having limited diffraction. A spectrometer is located downstream...http://www.google.es/patents/US7876446?utm_source=gb-gplus-sharePatente US7876446 - Method and assembly for confocal, chromatic, interferometric and spectroscopic scanning of optical, multi-layer data memories
Method and assembly for confocal, chromatic, interferometric and ...
