Recording medium and recording/reproduction apparatus thereof

A recording medium having first and second transparent electrodes, a photoconductive layer member and a photomodulation member, comprising:

• a first lamination member having a first transparent substrate on which the first transparent electrode and the photoconductive layer member are laminated in order;
• a second lamination member having a second transparent substrate on which the second transparent electrode and the photomodulation layer member are laminated in order;
• and
• coupling members for unifying the first and second lamination members within said recording medium to establish a fixed spaced apart relationship between said members with an air gap of specific width in such a manner that the photoconductor and photomodulation layer members face each other to permit an aerial discharge across said gap upon the application of a voltage between said electrodes.