Multilayer optical storage using low-coherence reflectometry

Summary form only given. Optical coherence domain reflectometry (OCDR) is capable of high-resolution imaging inside partially transparent media. Its high sensitivity with good lateral and depth resolution make this technique an excellent candidate for reading optical data stored in closely packed layers. Because diffraction-limited imaging of local regions is used (as opposed to volumetric holography), much of the existing single-layer, direct-detection optical storage technology can be directly adapted.