High density information storage carrier and method of reading such a carrier

摘要

The invention relates to an optical method of writing information using an optically strongly non-linear material (Ma) on which can be written information with dimensions several times less than the writing wavelength. The invention also relates to a method of reading information written on a material (Ma) deposited on a material (Mb) capable of being the site of a stimulated emission generating the reading of the written information. Applications: high-definition television, digital sound.