Hybrid plasmonic waveguide for low-loss lightwave guiding

Kim, Jin Tae; Ju, Jung Jin; Park, Suntak; Kim, Min-Su; Park, Seung Koo; Shin, Sangho

doi:10.1364/oe.18.002808

Cited by 69 publications

(25 citation statements)

References 14 publications

(17 reference statements)

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“…In order to reduce the energy loss of SPP propagation on metal stripe waveguides, recently, hybrid SPP waveguides at optical telecommunication wavelengths were proposed based on metal stripes embedded between the dual slab dielectric waveguides with high refractive-index contrast [237]. The symmetric metal stripe waveguides can support long-range SPP (LRSP) modes [238].…”

Section: 1g Metal Stripesmentioning

confidence: 99%

Nanostructures for surface plasmons

Zhang

2012

Adv. Opt. Photon.

115

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Surface plasmons (SPs) are electromagnetic excitations existing at the interface between a metal and a dielectric material. Control and manipulation of light based on SPs at the nanometer scale offers significant advantages in nanophotonic devices with very small elements, since the peculiar properties of SPs can be tailored by construction of nanostructures with various interfaces between metals and dielectric materials. Recent progress in nanostructures for SPs is reviewed. Resonance frequencies or wavelengths of SPs can be tuned by design of metal nanostructures, such as nanoparticles, nanorods, nanowires, nanosheets, and nanodisks. Moreover, SP resonance modes can also be tuned by control of the shapes and sizes of nanostructures, where the resonance modes include longitudinal and transversal resonances, dipolar and multipolar resonances, and Fano resonances. Based on SP coupling for metal nanostructures, metal-semiconductor nanostructures, metal-dielectric nanostructures, and metal-polymer nanostructures, propagating and guiding of SP can be achieved through the metal nanostructures and the hybrid structures. Additionally, metal nanostructures exhibit remarkable field enhancement effects (e.g., local near-field enhancement, and optical transmission enhancement) due to SP coupling. Furthermore, SP nanostructures perform unique focusing and imaging characteristics at the nanometer scale beyond the diffraction limit. Tailoring SPs by control of the nanostructures is expected to be used for design and development of high-performance optical components and circuits, which offer both potential and challenges for new generations of nanophotonic devices.

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Section: 1g Metal Stripesmentioning

confidence: 99%

Nanostructures for surface plasmons

Zhang

2012

Adv. Opt. Photon.

115

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“…Similar to the conventional hybrid plasmonic waveguide [31], [32], the hybrid plasmonic waveguide employing a combination of thin ITO and SiO 2 slots mainly supports the TM mode. A 450 nm-wide 250 nm-thick oblong Si waveguide enhanced the polarizationdependent nature of the input and output Si waveguide and a selectively coupled TM mode in the central hybrid plasmonic waveguide.…”

Section: Hybrid Plasmonic Waveguide With Itomentioning

confidence: 96%

Silicon Optical Modulators Based on Tunable Plasmonic Directional Couplers

Kim¹

2015

IEEE J. Select. Topics Quantum Electron.

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For the development of Si-based next generation electronic-photonic integrated circuits, a silicon optical modulator is designed based on tunable plasmonic directional couplers. The characteristics are investigated using numerical simulations with a full-vectorial beam propagation method. The center waveguide in the three-core coupler is a MOS-type hybrid plasmonic waveguide that consists of a Si-ITO-SiO 2 -Si structure. By electrically tuning the ITO's refractive index, the coupling efficiency of the directional coupler is switchable and, hence, we can obtain modulated optical signals at the outer waveguide, which is configured with a vertical offset. The extinction ratios are 6.7 and 2.3 dB at 1.31-and 1.55-μm wavelength, respectively. The optical modulator can be transformed into a plasmonic absorption modulator based on a two-core directional coupler at the cost of a long coupling length. The proposed silicon optical modulator has the potential to play a key role in complementary metal-oxide-semiconductor-compatible 3-D silicon photonic integrated circuits.

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“…[10][11][12][13][14] the 2D constrained HMI waveguide and related devices are investigated. References [15] and [16] deals with 2D HMIM waveguides and [17][18][19] with 2D HIMI waveguides.…”

Section: Introductionmentioning

confidence: 99%

Propagation Characteristics of Multilayer Hybrid Insulator-Metal-Insulator and Metal-Insulator-Metal Plasmonic Waveguides

Noghani

Samiei

2014

AEM

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Propagation characteristics of symmetrical and asymmetrical multilayer hybrid insulator-metal-insulator (HIMI) and metal-insulator-metal (HMIM) plasmonic slab waveguides are investigated using the transfer matrix method. Propagation length (L p ) and spatial length (L s ) are used as two figures of merit to qualitate the plasmonic waveguides. Symmetrical structures are shown to be more performant (having higher L p and lower L s ), nevertheless it is shown that usage of asymmetrical geometry could compensate for the performance degradation in practically realized HIMI waveguides with different substrate materials. It is found that HMIM slab waveguide could support almost long-range subdiffraction plasmonic modes at dimensions lower than the spatial length of the HIMI slab waveguide.

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Hybrid plasmonic waveguide for low-loss lightwave guiding

Cited by 69 publications

References 14 publications

Nanostructures for surface plasmons

Nanostructures for surface plasmons

Silicon Optical Modulators Based on Tunable Plasmonic Directional Couplers

Propagation Characteristics of Multilayer Hybrid Insulator-Metal-Insulator and Metal-Insulator-Metal Plasmonic Waveguides

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