Frequency splitter based on the directional emission from surface modes in dielectric photonic crystal structures.
نویسندگان
چکیده
We demonstrate the numerical design and the experimental validation of frequency dependent directional emission from a dielectric photonic crystal structure. The wave propagates through a photonic crystal line-defect waveguide, while a surface layer at the termination of the photonic crystal enables the excitation of surface modes and a subsequent grating layer transforms the surface energy into outgoing propagating waves of the form of a directional beam. The angle of the beam is controlled by the frequency and the structure operates as a frequency splitter in the intermediate and far field region.
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ورودعنوان ژورنال:
- Optics express
دوره 23 11 شماره
صفحات -
تاریخ انتشار 2015