Abstract
In summary, in this work, we demonstrated the application of the grating-coupled SPR for the fabrication of an EO light modulator. SPR-based EO modulators reported to date have mostly used the Kretchmann configuration. To the best of authors’ knowledge, this work reports the first fabrication and demonstration of a grating-coupled EO modulator. By switching on and off of the applied voltage of 5 V, the subsequent variation of SPR was observed clearly. It should be mentioned that currently our study was limited to show the feasibility of our concept. For practical applications, further optimization of SPR signal will be required, which is a subject of our ongoing research.
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