Spatial Mode Selection by the Phase Modulation of Subwavelength Plasmonic Grating
- Cai LK (Cai Likang)
- Zhang J (Zhang Jing)
- Bai WL (Bai Wenli)
- Wang Q (Wang Qing)
- Wei X (Wei Xin)
- Song GF (Song Guofeng)
- Song, GF, Chinese Acad Sci, Inst Semicond, POB 912, Beijing 100083, Peoples R China. sgf@semi.ac.cn
DOIAbstract
The extraordinary transmission of the subwavelength gold grating has been investigated by the rigorous coupled-wave analysis and verified by the metal-insulator-metal plasmonic waveguide method. The physical mechanisms of the extraordinary transmission are characterized as the excitation of the surface plasmon polariton modes. The subwavelength grating integrated with the distributed Bragg reflector is proposed to modulate the phase to realize spatial mode selection, which is prospected to be applied for transverse mode selection in the vertical cavity surface-emitting laser
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