Current-injection organic semiconductor laser diode, method for producing same and program

A current-injection organic semiconductor laser diode comprising:

• a substrate composed of a first electrode and an optical resonator structure of an insulating material,
• one or more organic layers including a light amplification layer composed of an organic semiconductor, and
• a second electrode,
• which has a sufficient overlap between a distribution of exciton density and an electric field intensity distribution of a resonant optical mode during current injection to emit laser light,
• wherein the organic layers are laminated on the surface of the substrate so that one of the organic layers contacts with the first electrode.