1xN plasmonic power splitters based on metal-insulator-metal waveguides

Chen, Chyong-Hua; Liao, Kao-Sung

doi:10.1364/oe.21.004036

Cited by 44 publications

(22 citation statements)

References 19 publications

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“…SPP waveguides, including insulator-metal-insulator (IMI) waveguides [ 9 ], metal-insulator-metal (MIM) waveguides [ 10 ] and combined waveguides [ 11 ], have been widely studied. Among these waveguides, MIM waveguides, in particular, exhibit low transmission loss and strong localized field confinement [ 12 , 13 , 14 ], and have led to the development of sub-wavelength photonic devices such as splitters [ 15 ], couplers [ 16 , 17 ], and filters [ 18 , 19 , 20 ]. These devices are basically composed of waveguides and resonators.…”

Section: Introductionmentioning

confidence: 99%

A Refractive Index Sensor Based on a Metal-Insulator-Metal Waveguide-Coupled Ring Resonator

Yan

Luo

Chen

et al. 2015

Sensors

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A refractive index sensor composed of two straight metal-insulator-metal waveguides and a ring resonator is presented. One end of each straight waveguide is sealed and the other end acts as port. The transmission spectrum and magnetic field distribution of this sensor structure are simulated using finite-difference time-domain method (FDTD). The results show that an asymmetric line shape is observed in the transmission spectrum, and that the transmission spectrum shows a filter-like behavior. The quality factor and sensitivity are taken to characterize its sensing performance and filter properties. How structural parameters affect the sensing performance and filter properties is also studied.

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Section: Introductionmentioning

confidence: 99%

A Refractive Index Sensor Based on a Metal-Insulator-Metal Waveguide-Coupled Ring Resonator

Yan

Luo

Chen

et al. 2015

Sensors

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“…Due to these reasons, researchers have shifted focus on the optical signal to transmit the information [1,[5][6][7][10][11][12][13]. Different types of optical techniques are employed such as metal-insulator-metal (MIM) [3][4]28,31,33,37,43], insulator-metal-insulator (IMI) [28,33], dielectric-loaded surface plasmon polaritons (DLSPP) [10][11][21][22]29,31,33,35], metal slot waveguide [3][4]. The directional coupler already has been implemented by using a semiconductor optical ampli er (SOA) [15][16]23,27,[36][37] photonic crystal [13,19,31,[36][37][38][39][40][41][42][44][45] and lithium niobate (LiNbO 3 ) [5,8,15,].…”

Section: Introductionmentioning

confidence: 99%

Design of All-Optical Directional Coupler Using Plasmonic MIM Waveguide for Switching Applications

Nanda

Rath

Swarnakar

et al. 2021

Preprint

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In this paper, we have proposed, analyzed, and verified theperformance of an optimized plasmonic 10-dB directional coupler and a 3-dB directional coupler in 2-D plasmonic waveguides using finite-difference-time-domain (FDTD) method. A plasmonic 10-dB directional coupler and a 3-dB directional coupler are based on the metal-insulator-metal (MIM) slab waveguide and analyzed at the telecommunication wavelength (λ) of 1550 nm. Here, coupling and transmission characteristics are analyzed with the optimized separation distance between the two parallel waveguides. The developed approach ensures the minimization of the crosstalk and overall directional coupler length via simultaneous adjustment of the separation distance between the parallel waveguide and length of the linear waveguide. Then an optimized structure is acquired by trading off between coupling length and separation distance. The proposed 10-dB directional coupler and 3-dB directional coupler features good energy confinement, ultra-compact and low propagation loss, which has potential applications in photonic integrated devices, optical signal processors, and other all-optical switching devices.

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“…SPP waveguide structures [5,6,7], in particular, metal–insulator–metal (MIM) waveguides [8] with small size, ease of integration, and good balance between light localization and propagation loss [9], have attracted much attention with expectations to realize highly integrated optical circuits because of their behaviour of overcoming the diffraction limit of light [10]. Recently, several plasmonic MIM waveguide sensors have been proposed [11,12] and have been used to the development of sub-wavelength photonic devices such as splitters [13], couplers [14], and filters [15,16,17,18,19,20]. These devices basically consist of waveguides and resonators (or cavities).…”

Section: Introductionmentioning

confidence: 99%

Ultra-High Refractive Index Sensing Structure Based on a Metal-Insulator-Metal Waveguide-Coupled T-Shape Cavity with Metal Nanorod Defects

et al. 2019

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An ultra-high plasmonic refractive index sensing structure composed of a metal–insulator–metal (MIM) waveguide coupled to a T-shape cavity and several metal nanorod defects is proposed and investigated by using finite element method. The designed plasmonic MIM waveguide can constitute a cavity resonance zone and the metal nanorod defects can effectively trap the light in the T-shape cavity. The results reveal that both the size of defects in wider rectangular cavity and the length of narrower rectangular cavity are primary factors increasing the sensitivity performance. The sensitivity can achieve as high as 8280 nm/RIU (RIU denotes the refractive index unit), which is the highest sensitivity reported in plasmonic MIM waveguide-based sensors to our knowledge. In addition, the proposed structure can also serve as a temperature sensor with temperature sensitivity as high as 3.30 nm/°C. The designed structure with simplicity and ease of fabrication can be applied in sensitivity nanometer scale refractive index sensor and may potentially be used in optical on-chip nanosensor.

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1xN plasmonic power splitters based on metal-insulator-metal waveguides

Cited by 44 publications

References 19 publications

A Refractive Index Sensor Based on a Metal-Insulator-Metal Waveguide-Coupled Ring Resonator

A Refractive Index Sensor Based on a Metal-Insulator-Metal Waveguide-Coupled Ring Resonator

Design of All-Optical Directional Coupler Using Plasmonic MIM Waveguide for Switching Applications

Ultra-High Refractive Index Sensing Structure Based on a Metal-Insulator-Metal Waveguide-Coupled T-Shape Cavity with Metal Nanorod Defects

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