Surface plasmon resonance on microaperture vertical-cavity surface-emitting laser with metal grating

Shinada, Satoshi; Hashizume, Jiro; Koyama, Fumio
August 2003
Applied Physics Letters;8/4/2003, Vol. 83 Issue 5, p836
Academic Journal
We proposed a microaperture vertical-cavity surface-emitting laser (VCSEL) with metal grating for the enhancement of optical near-field induced by surface plasmon resonance. We carried out the two-dimensional modeling on the near-field intensity at a microaperture surrounded by a grating in a silver film. An increase in throughput through the microaperture was obtained by the control of a surface plasmon mode, which is strongly dependent on some structural parameters of the grating, such as the period and the depth of a grating, and so on. We also fabricated a microaperture VCSEL with concentric circular grating, exhibiting a large enhancement in peak intensity. The intensity is eight times larger than that of a single-aperture device without grating.


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