Design of Plasmonic Slot Waveguide with High Localization and Long Propagation Length

Lee, Ki-Sik; Jung, Jaehoon

doi:10.3807/josk.2011.15.3.305

Cited by 5 publications

(4 citation statements)

References 16 publications

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“…The result confirms the fact that it is not possible to find the global optimum by using only the designers' intuition or experience due to the complexity of the objective function. In the present case, in order to search for the global maximum, we employ a genetic algorithm [20][21].…”

Section: Optimal Designmentioning

confidence: 99%

Optimal Design of Dielectric-Filled Plasmonic Slot Waveguide with Genetic Algorithm

Kim

Jung²

2012

Journal of the Optical Society of Korea

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An optimization methodology for designing a dielectric-filled plasmonic slot waveguide is presented. The genetic algorithm combined with a rigorous analysis based on the finite element method is used to optimize a nano-scaled plasmonic slot waveguide to have high mode confinement and a long propagation length, for which the objective function is defined as a figure of merit combining both propagation parameters.

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Section: Optimal Designmentioning

confidence: 99%

Optimal Design of Dielectric-Filled Plasmonic Slot Waveguide with Genetic Algorithm

Kim

Jung²

2012

Journal of the Optical Society of Korea

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“…Depending on the architecture, several plasmonic waveguides are available in the literature, such as plasmonic slot waveguides [ 19 ], which are popular in the nanoscale confinement of plasmonic modes. The typical slot structures are generally based on the metal–semiconductor-metal (MSM) [ 19 – 21 ] or metal–insulator-metal (MIM) [ 22 – 26 ] configuration. The dimensions of the sandwiched slot structure play an essential role in the selectivity of propagating modes.…”

Section: Introductionmentioning

confidence: 99%

Surface acoustic wave actuated plasmonic signal amplification in a plasmonic waveguide

Gupta,

Barman,

Lee

et al. 2024

Discover Nano

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Enhancement of nanoscale confinement in the subwavelength waveguide is a concern for advancing future photonic interconnects. Rigorous innovation of plasmonic waveguide-based structure is crucial in designing a reliable on-chip optical waveguide beyond the diffraction limit. Despite several structural modifications and architectural improvements, the plasmonic waveguide technology is far from reaching its maximum potential for mass-scale applications due to persistence issues such as insufficient confined energy and short propagation length. This work proposes a new method to amplify the propagating plasmons through an external on-chip surface acoustic signal. The gold–silicon dioxide (Au-SiO2) interface, over Lithium Niobate (LN) substrate, is used to excite propagating surface plasmons. The voltage-varying surface acoustic wave (SAW) can tune the plasmonic confinement to a desired signal energy level, enhancing and modulating the plasmonic intensity. From our experimental results, we can increase the plasmonic intensity gain of 1.08 dB by providing an external excitation in the form of SAW at a peak-to-peak potential swing of 3 V, utilizing a single chip.

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“…Optical modeling of multilayer films has drawn much attention in recent years due to its essential use in the optical design of solar cells and plasmonic metamaterials. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] The central quantity of optical modeling in these devices is the spatial distribution of the time-average optical power dissipation, QðzÞ ¼ ÀdSðzÞ=dz, which corresponds to the amount of photon energy absorbed by the material per unit time and per unit volume. Here, z is a position within the structure and SðzÞ is the spatial distribution of the timeaverage Poynting vector.…”

Section: Introductionmentioning

confidence: 99%

Universal Expression of the Optical Power Dissipation in Multilayer Structures with Complex Permittivity and Permeability

Kim

2012

Jpn. J. Appl. Phys.

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A general simple expression is derived for the time-average optical power dissipation Q in plasmonic or metamaterial-based multilayer structures, which have complex permittivity and/or complex permeability. We demonstrate that the derived general expression for Q, including the optical interference effect, is in the same form as one based on the Poynting's energy theorem, where the optical interference effect is not explicitly considered. The universal expression of Q, derived under the assumption of complex permittivity and permeability, reduces to other well-known simple forms, which are only valid when either permittivity or permeability is complex. The derived general expression of Q provides with a strong theoretical background to predict the optical absorption or loss in the design of plasmonic or metamaterial-based nanostructures.

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Design of Plasmonic Slot Waveguide with High Localization and Long Propagation Length

Cited by 5 publications

References 16 publications

Optimal Design of Dielectric-Filled Plasmonic Slot Waveguide with Genetic Algorithm

Optimal Design of Dielectric-Filled Plasmonic Slot Waveguide with Genetic Algorithm

Surface acoustic wave actuated plasmonic signal amplification in a plasmonic waveguide

Universal Expression of the Optical Power Dissipation in Multilayer Structures with Complex Permittivity and Permeability

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