A surface plasmon temperature sensor based on E7 liquid crystal using angle interrogation method

Alwahib, Ali Abdulkhaleq; Hasan, Shatha M.; Hubeatir, Kadhim A.

doi:10.1080/09205071.2021.1960901

Cited by 8 publications

(2 citation statements)

References 26 publications

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“…Conversely, PW can permit the light to flow under the diffraction limits, but there is a problem of high propagation loss. A great deal between confinement and propagation loss can be achieved by using a Hybrid Plasmonic Waveguide (HPWGs) [11], where plasmon and dielectric guiding leads the guiding mechanism [12,13]. The general layout of the HPWGs, which require three media, is shown in Figure 1.…”

Section: Introductionmentioning

confidence: 99%

Realization of an all-optical d and t flip flops with nano-structure using hybrid plasmonic waveguides

Abdulwahid,

Wadday,

Abdul Sattar

2024

ETJ

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Optical D and T flip flops are designed using hybrid plasmonic waveguides • The suggested design has nano dimensions of 400 nm 2 • There is an amplification effect in the Transmission values Surface waves are electromagnetic waves propagating along the interface between a metal and an insulator. Surface waves break the diffraction limits and enable light to propagate in sub-wavelength structures. That opens the field of electroopto devices. The main drawbacks of surface waves that move in the Plasmonic Waveguides (PWs) are propagation loss and low light confinement. Using a combination of the plasmonic waveguide and a Dielectric Waveguide (DW), the defect of the surface waves can be enhanced, and the Hybrid Plasmonic waveguide (HPW) is introduced. In this research, the design of an all-optical flip flop with 400 nm × 400 nm nano-scale dimensions, 1310 nm operating wavelength, and a transmission threshold (Tthreshold) of 30% is shown using hybrid plasmonic waveguides (HPWGs) for Electro-Opto applications. It offers the basic structure for creating optical computers. The results of this structure are evaluated in a term of Contrast Ratio (CR), Modulation Depth (MD), and Insertion Losses (IL). The D-flip flop had an Insertion Loss of -1.4 dB, a CR of 7.45 dB, and a MD of 97.67%. The T-flip flop had an IL of -2.07 dB, a CR of 11.2 dB, and a MD of 95.29%. The mechanism that governs the operation of the suggested circuits depends on the constructive and destructive interferences between input ports and control ports. The simulation is based on the finite element method utilizing COMSOL software package version 5.5.

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Section: Introductionmentioning

confidence: 99%

Realization of an all-optical d and t flip flops with nano-structure using hybrid plasmonic waveguides

Abdulwahid,

Wadday,

Abdul Sattar

2024

ETJ

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“…The pros and cons of the plasmonic waveguides (PW) and the dielectric waveguides (DW) can be seen as one complete the other [15][16][17] , for example, DW can be regarded as lossless guides but there is a problem in the mode size, on the other side PW can permit the light to ow under the diffraction limits but there is a problem of high propagation loss. A great deal between con nement and propagation loss can be achieved by using HPWG 18 , where plasmon and dielectric guiding leads the guiding mechanism 19,20 .…”

Section: Introductionmentioning

confidence: 99%

New structure for an all-optical logic gate based on hybrid plasmonic square-shaped nanoring resonators and strips

2022

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Seven all-optical logic gates based on hybrid plasmonic squared-shaped nanoring resonators and strips are proposed, designed, and numerically analyzed using Finite Element Method (FEM) with COMSOL software package. Constructive and destructive interferences between the input port(s) and the control port(s) are the main operating principles used to produce the proposed gates. The ratio of output optical power to the input power at a single port which is called the transmission threshold is selected to be 30% and the resonance wavelength is 1310 nm. All the hybrid plasmonic logic gates are performed in a single structure of 400nm x 400 nm dimensions and the performance is measured according to the values of transmission at the output port versus a wavelength range from 800 nm to 2000 nm, contrast ratio, modulation depth, and insertion loss. The transmission exceeds 100% in ve gates, 146% at NOT and NAND gates, 202.3% at OR, AND, and XNOR gates. The modulation depth scores are 99.75% at the XNOR gate, 98.5% at the NOR gate, 97.67% at OR, AND, NOT, and NAND gates, and 95.29% for the XOR gate.

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Design of Optical Combinational Circuits Utilized with Hybrid Plasmonic Waveguides

2022

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A surface plasmon temperature sensor based on E7 liquid crystal using angle interrogation method

Cited by 8 publications

References 26 publications

Realization of an all-optical d and t flip flops with nano-structure using hybrid plasmonic waveguides

Realization of an all-optical d and t flip flops with nano-structure using hybrid plasmonic waveguides

New structure for an all-optical logic gate based on hybrid plasmonic square-shaped nanoring resonators and strips

Design of Optical Combinational Circuits Utilized with Hybrid Plasmonic Waveguides

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