| 摘要 |
On an uppermost plane of a glass substrate 3, a lower electrode 7 and a upper electrode 5 with an organic EL layer 6 intervening therebetween are laminated in an orthogonal manner. The lower electrode 7, upper electrode 5 and an organic EL layer 6 have a width W=10 nm, respectively. In this configuration, a light source with a minute light-emitting region having an area of 10 nmx10 nm can be obtained. The glass substrate 3 is formed as a multi-stage structure so that the light-emitting region can be placed at a position close to an object. Thus, a simple light source which can be used near field optics is provided.
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