Subwavelength wave manipulation in a thin surface-wave bandgap crystal
It has been recently reported that the unit cell of wire media metamaterials can be tailored locally to shape the flow of electromagnetic waves at subwavelength scales [Lemoult et al., Nature Physics 9, 55-60 (2013)]. However, such bulk structures have a thickness of at least the order of wavelength...
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| Main Authors: | , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
2019
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/104627 http://hdl.handle.net/10220/47927 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | It has been recently reported that the unit cell of wire media metamaterials can be tailored locally to shape the flow of electromagnetic waves at subwavelength scales [Lemoult et al., Nature Physics 9, 55-60 (2013)]. However, such bulk structures have a thickness of at least the order of wavelength, thus hindering their applications in the on-chip compact plasmonic integrated circuits. Here, based upon a Sievenpiper “mushroom” array [Sievenpiper et al., IEEE Trans. Microwave Theory Tech. 47, 2059 (1999)] which is compatible with the standard printed circuit board technology, we propose and experimentally demonstrate the subwavelength manipulation of surface waves on a thin surface-wave band-gap crystal with a thickness much smaller than the wavelength (1/30th of the operating wavelength). Functional devices including T-shaped splitter and sharp bend are constructed with good performance. |
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