Exciting surface plasmon polaritons in the Kretschmann configuration by a light beam

Article

关键词: PROPAGATION;    EXCITATION;    FILMS;    RESONANCE;    SILVER;    WAVES;   

DOI  :  10.1103/PhysRevB.97.235407

来源: SCIE

【 摘 要 】

We consider exciting surface plasmon polaritons in the Kretschmann configuration. Contrary to common belief, we show that a plane-wave incident at an angle greater than the angle of total internal reflection does not excite surface plasmon polaritons. These excitations do arise, however, if the incident light forms a narrow beam composed of an infinite number of plane waves. The surface plasmon polariton is formed at the geometrical edge of the beam as a result of interference of reflected plane waves.

【 授权许可】

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