Broadband Sharp 90-degree Bends and T-Splitters in Plasmonic Coaxial Waveguides

Shin, Weon Ho; Cai, Wenshan; Catrysse, Peter B.; Veronis, Georgios; Brongersma, Mark L.; Fan, Shanhui

doi:10.1021/nl402335x

Cited by 47 publications

(31 citation statements)

References 55 publications

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“…This is different from other classical optical analogues of quantum systems, such as the plasmonic analogue of electromagnetically induced transparency [122,123], which can be realized in both lossless and lossy optical systems. In addition, the formation of an EP and the resulting unidirectional reflectionlessness can also be implemented using plasmonic waveguide-cavity systems based on other plasmonic two-conductor waveguides, such as 3D plasmonic coaxial waveguides [124,125].…”

Section: ) Smentioning

confidence: 99%

Unidirectional reflectionless light propagation at exceptional points

et al. 2017

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Abstract:In this paper, we provide a comprehensive review of unidirectional reflectionless light propagation in photonic devices at exceptional points (EPs). EPs, which are branch point singularities of the spectrum, associated with the coalescence of both eigenvalues and corresponding eigenstates, lead to interesting phenomena, such as level repulsion and crossing, bifurcation, chaos, and phase transitions in open quantum systems described by non-Hermitian Hamiltonians. Recently, it was shown that judiciously designed photonic synthetic matters could mimic the complex non-Hermitian Hamiltonians in quantum mechanics and realize unidirectional reflection at optical EPs. Unidirectional reflectionlessness is of great interest for optical invisibility. Achieving unidirectional reflectionless light propagation could also be potentially important for developing optical devices, such as optical network analyzers. Here, we discuss unidirectional reflectionlessness at EPs in both parity-time (PT)-symmetric and non-PT-symmetric optical systems. We also provide an outlook on possible future directions in this field.

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Section: ) Smentioning

confidence: 99%

Unidirectional reflectionless light propagation at exceptional points

et al. 2017

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“…As before, to study the properties of this waveguide the FDFD method is used to solve Maxwell's equations numerically for each vacuum wavelength λ 0 (12,58,59). The fundamental mode of the reference waveguide made of silver is a quasi-TEM mode.…”

Section: Three-dimensional Plasmonic Coaxial Waveguidesmentioning

confidence: 99%

“…Finally, plasmonic coaxial waveguides could also find many potential applications such as deep-subwavelength focusing, enhanced transmission, and negative refraction (58).…”

Section: Applicationsmentioning

confidence: 99%

Subwavelength Plasmonic Two‐Conductor Waveguides

Mahigir

Dastmalchi

Veronis

et al. 2016

Wiley Encyclopedia of Electrical and Electronics Engineering

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This article reviews advances in the development of subwavelength plasmonic two‐conductor waveguides. First, the properties of two‐dimensional (2D) plasmonic two‐conductor waveguides, which are commonly referred to as metal–dielectric–metal (MDM) waveguides, are discussed. This is followed by a review of the properties of three‐dimensional (3D) plasmonic two‐conductor waveguides, such as plasmonic slot waveguides and plasmonic coaxial waveguides. Following the discussion of plasmonic two‐conductor waveguiding geometries, the properties of components based on these waveguides are reviewed. More specifically, we focus on bends and splitters that are essential components of optical integrated circuits. The properties of such bends and splitters in 2D and 3D plasmonic two‐conductor waveguides are discussed. Finally, the fabrication and optical characterization methods for 2D and 3D plasmonic two‐conductor waveguides are presented.

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“…Surface plasmons polaritons (SPP) have been widely studied during the past decades because of its ability of overcoming the conventional diffraction limit and manipulating light on deep subwavelength scales at the same time. Recently, numerous devices based on SPPs such as the alloptical switching [1,2], Y-shaped combiners [3], modulators [4,5], sensors [6,7], Mach-Zehnder interferometer [8], directional couplers [9], splitters [10,11], and Bragg reflectors [12,13] are simulated numerically and demonstrated experimentally.…”

Section: Introductionmentioning

confidence: 99%