PLASMON GENERATOR HAVING FLARE SHAPED SECTION

摘要

The present invention relates to a plasmon generator, in which a surface plasmon is excited by application of light. The plasmon generator extends along one direction. The plasmon generator includes a first end surface that is positioned on one end in the one direction and at which near-field light is generated along with the excitation of the plasmon; and a second cross section that is substantially parallel to the first end surface and is away from the first end surface. The first end surface has a polygonal shape that does not have a substantially acute inner angle. The second cross section has an upper part that has a shape substantially the same as or similar to that of the first end surface and a flare shaped lower part that is connected to the upper part and has a width that increases as it is far from the upper part.

主权项

1. A plasmon generator, in which a surface plasmon is excited by application of light, extending along one direction, and comprising:
a first end surface that is positioned on one end in the one direction and at which near-field light is generated along with the excitation of the plasmon; and a second cross section that is substantially parallel to the first end surface and is away from the first end surface, the first end surface having a polygonal shape that does not have a substantially acute inner angle, the second cross section having
an upper part that has a shape substantially the same as or similar to that of the first end surface, anda flare shaped lower part that is connected to the upper part and has a width that increases as it is far from the upper part.