Detection and characterization of attenuated multimode waveguiding in SiO2 slabs using photoemission electron microscopy

Article

关键词: SURFACE-PLASMON POLARITONS;    PROPAGATION;    INTERFACES;    DYNAMICS;    PEEM;   

DOI  :  10.1103/PhysRevB.98.085128

来源: SCIE

【 摘 要 】

Multimode waveguiding in the visible and near-ultraviolet spectral regime is observed and characterized in thermally grown SiO(2 )layers on silicon using photoemission electron microscopy (PEEM). Comparison with finite-element-method simulations allows identifying order and character of the attenuated modes. Real-time investigations on mode propagation support these findings and give additional evidence for the existence of radiative modes. Finally, the presented experimental results illustrate how a defined deposition of gold nanoparticles can substantially enhance the sensitivity of the PEEM technique to electromagnetic field modes supported by thin dielectric and insulating layers.

【 授权许可】

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