Journal
PHYSICAL REVIEW LETTERS
Volume 102, Issue 12, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.102.127405
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Funding
- EPSRC (UK)
- ONR [N00014-07-1-0457]
- NSF [ECCS-0724763]
- ACS-PRF
- EPSRC [EP/E011578/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/E011578/1] Funding Source: researchfish
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We analyze the optical properties of plasmonic nanorod metamaterials in the epsilon-near-zero regime and show, both theoretically and experimentally, that the performance of these composites is strongly affected by nonlocal response of the effective permittivity tensor. We provide the evidence of interference between main and additional waves propagating in the room-temperature nanorod metamaterials and develop an analytical description of this phenomenon. Additional waves are present in the majority of low-loss epsilon-near-zero structures and should be explicitly considered when designing applications of epsilon-near-zero composites, as they represent a separate communication channel.
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