| 摘要 |
PURPOSE:To obtain the optical memory method extremely useful for storing data by utilizing the various characteristics generated from a difference between the material characteristic of the excitation state of a material and the material characteristic of the base state. CONSTITUTION:The light pulses released from a laser or other light source 1 excites the compd. in a memory material 2. The data stored in such a manner is monitored and read out by passing the other beam, for example, the light beam from a light source 3 through the memory material 2, i.e. memory bit, by which the transmission can be searched. The transmission intensity of the searching beam is measured by a detector 4. The light source 1 used for writing to the memory medium 2 is otherwise used again for reading out. However, the light lowered to 1/10 the intensity of the light radiated for the purpose of writing or below is used in order to prevent the significant generation of the excited state. The optical memory method extremely useful for storing data is obtd. in this way. |
