In a multistable optical logic element with a light-sensitive organic material (1) which undergoes a photocycle with several physical states by irradiation with light, and wherein a physical state is assigned a logical value which can be changed by addressing the element optically, the element initially...http://www.google.de/patents/US6219160?utm_source=gb-gplus-sharePatent US6219160 - Optical logic element and methods for respectively its preparation and optical addressing, as well as the use thereof in an optical logic device
