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https://hdl.handle.net/10356/82963
Title: | Lattice induced strong coupling and line narrowing of split resonances in metamaterials | Authors: | Tan, Thomas CaiWei Srivastava, Yogesh Kumar Manjappa, Manukumara Plum, Eric Singh, Ranjan |
Keywords: | Plasmonics Terahertz Spectroscopy DRNTU::Science::Physics |
Issue Date: | 2018 | Source: | Tan, T. C., Srivastava, Y. K., Manjappa, M., Plum, E., & Singh, R. (2018). Lattice induced strong coupling and line narrowing of split resonances in metamaterials. Applied Physics Letters, 112(20), 201111-. doi:10.1063/1.5026649 | Series/Report no.: | Applied Physics Letters | Abstract: | Strongly coupled metamaterial resonances typically undergo mode-splitting by which there is an exchange of energy between matter excitations and photons. Here, we report a strong coupling of the lattice mode with the structural eigen-resonances of an asymmetric split-ring metamaterial associated with mode-splitting and resonance line-narrowing that gives rise to high quality factor (Q-factor) resonances. We demonstrate selective control of the resonance strength, line-width, and Q-factor of individual split-ring modes by tailoring the coupling of the fundamental lattice mode to each of the hybridized resonances. A three-coupled-oscillator model shows lattice-mediated strong coupling in the form of an anti-crossing behavior between the hybridized metamaterial resonances. Such schemes of strong coupling between the lattice and the hybrid modes of the metamaterial unit cell offer an avenue to invoke lattice induced transparency, high-Q resonances and strong field confinement, which could find applications in designing slow light devices, ultrasensitive sensors, and multiband narrow filters. | URI: | https://hdl.handle.net/10356/82963 http://hdl.handle.net/10220/47551 |
ISSN: | 0003-6951 | DOI: | 10.1063/1.5026649 | DOI (Related Dataset): | https://doi.org/10.21979/N9/UMA5GK | Rights: | © 2018 The Author(s). All rights reserved. This paper was published by AIP in Applied Physics Letters and is made available with permission of The Author(s). | Fulltext Permission: | open | Fulltext Availability: | With Fulltext |
Appears in Collections: | SPMS Journal Articles |
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