The Tunable Optofluidics Waveguide Design Based on the Novel Dual Side-Coupled Cavities Plasmonic Structure

2014 ◽  
Vol 609-610 ◽  
pp. 648-653 ◽  
Author(s):  
Teng Long Li ◽  
Rui Sheng Liang ◽  
Wen Hao Mo ◽  
Liang Bing Luo ◽  
Ming Jia He ◽  
...  
Keyword(s):  
Refractive Index ◽  
Liquid Volume ◽  
The Novel ◽  
Pump System ◽  
Integrated Optical ◽  
Wavelength Filter ◽  
Waveguide Design ◽  
Optical Circuits ◽  
Difference Time ◽  
Coupled Cavity Waveguide

We present a tunable wavelength filter in plasmonic metaldielectricmetal (MIM) side-coupled-cavity waveguide with optofluidics pump system proposed to realize tunable mechanism. The peak wavelength can shift by manipulating the length of liquid column and the effective refractive index. The finite difference time domain method is used in the numerically simulated experiment and the resonant wavelengths from 1000 to around 1800nm had been analyzed. The results reveal that the resonant wavelengths are proportional to the liquid volume length and refractive index of liquid in the cavity. This waveguide filter can be used in integrated optical circuits.

Resonators induced transparency and optical switching assisted by optofluidic pump system

2016 ◽  
Vol 30 (36) ◽  
pp. 1650407
Author(s):  
Fang Chen ◽  
Li-Hui Sun
Keyword(s):  
Time Domain ◽  
Finite Difference Time Domain ◽  
Optical Switching ◽  
Pump System ◽  
Plasmonic Switch ◽  
Integrated Optical ◽  
Ultrafast Devices ◽  
Induced Transparency ◽  
Optical Circuits ◽  
Difference Time

A tunable plasmonic induced transparency (PIT)-based light switching is proposed and investigated. The proposed structure consists of a bus waveguide, two nanoresonators and an optofluidic pump system for actively tuning the system’s transmission. By using the finite difference time domain method, it is found that the interferences between the dark and bright mode resonators can be controlled by manipulating the fluid filled in the resonator, leading to an actively tunable plasmonic switch, the transmittance can be flexibly tuned from near unity to zero. The structure in our paper has the following advantages, such as ultracompact size and easy fabrication. Our study will provide a possibility for designing the ultrafast devices in highly integrated optical circuits.

WAVELENGTH DEMULTIPLEXING IN METAL–INSULATOR–METAL PLASMONIC WAVEGUIDES

2014 ◽  
Vol 28 (04) ◽  
pp. 1450025 ◽  
Author(s):  
XIANKUN YAO
Keyword(s):  
Transmission Efficiency ◽  
Plasmonic Waveguides ◽  
Metal Insulator ◽  
Metal Insulator Metal ◽  
Integrated Optical ◽  
Potential Applications ◽  
Wavelength Demultiplexing ◽  
Optical Circuits ◽  
Difference Time ◽  
Mim Waveguide

In this paper, we have numerically investigated a novel kind of ultra-compact wavelength demultiplexing (WDM) in high-confined metal–insulator–metal (MIM) plasmonic waveguides. It is found that the drop transmission efficiency of the filtering cavity can be strongly enhanced by introducing a side-coupled cavity in the MIM waveguide. The theoretical analysis is verified by the finite-difference time-domain simulations. Through cascading the filtering units, a highly effective triple-wavelength demultiplexer is proposed by selecting the specific separation between the two coupled cavities of filtering units. Our results may find potential applications for the nanoscale WDM systems in highly integrated optical circuits and networks.

Double plasmon induced transparency in disk and nanobars coupled nanosystems and its application to plasmonic resonance sensing

2016 ◽  
Vol 30 (14) ◽  
pp. 1650150
Author(s):  
Fang Chen ◽  
Duanzheng Yao
Keyword(s):  
Refractive Index ◽  
Figure Of Merit ◽  
Slow Light ◽  
Highly Sensitive ◽  
Integrated Optical ◽  
High Figure ◽  
Induced Transparency ◽  
Optical Circuits ◽  
Coupled Harmonic Oscillator ◽  
Plasmon Induced Transparency

We demonstrate the realization of plasmon induced transparency (PIT) in a nanostructure composed of silver nanobars and a silver nanodisk. The optical properties of the planar metamaterials have been investigated theoretically in the paper. The classical coupled harmonic oscillator model demonstrates the PIT phenomenon in a nanodisk–nanobar system. Additionally, double PIT response is observed when two nanobars are located in proximity to the silver nanodisk. The PIT window wavelength and bandwidths can be efficiently tuned by controlling the geometric parameters such as the lengths of nanobars and the coupling distances between the nanodisk and nanobars. Moreover, the transparency window shows highly sensitive response to the refractive index of the environmental medium. A high figure of merit up to 15.5 of the asymmetrical system for refractive index sensing is achieved. The tunability of the PIT may have potential application on slow light and highly integrated optical circuits.

scholarly journals Construction and Testing of a Plasmonic Sensor Using an Amplifier System (One Cavity and Two Rings) with Two Plasmonic Waveguides

2021 ◽  
Author(s):  
Hamid Abbasi
Keyword(s):  
Refractive Index ◽  
Optical Resolution ◽  
Sensitivity Coefficient ◽  
Plasmonic Waveguides ◽  
Plasmonic Sensor ◽  
Sensor Performance ◽  
Sensor Structure ◽  
Quality Factor Q ◽  
Optical Circuits ◽  
Difference Time

In this study, we seek to analyze and numerically evaluate a plasmonic sensor. To form the sensor structure, we use several amplifiers, such as two rings attached to each other and a cavity, as well as two metal insulating metal waveguides (MIM). At the beginning of this simulation, we must examine the resonant wavelengths and the refractive index of the resonators using the finite difference time domain method. By changing the refractive index and changing the dimensions of the cavity and the rims, we seek to investigate the sensor performance and the conduction characteristics of the plasmonics and to obtain the effect of these parameters. To evaluate the sensor performance, we calculate the three factors of sensitivity coefficient S, quality factor Q and figure of merit (FOM), here we reach the sensitivity of 987.6 nm / RIU. Such a plasmonic sensor with a simple framework and high optical resolution can be very useful for sensor systems on optical circuits.

scholarly journals Dynamic Analysis and Control of an Automatic Transmission for Start-Stop Function and Efficiency Improvement

2015 ◽  
Vol 2015 ◽  
pp. 1-13
Author(s):  
Yang Liu ◽  
Shuhan Wang ◽  
Peng Dong ◽  
Xiangyang Xu
Keyword(s):  
Control Strategies ◽  
Automatic Transmission ◽  
Simulation Method ◽  
Transmission Efficiency ◽  
The Novel ◽  
Test Results ◽  
Test Environment ◽  
Pump System ◽  
Oil Pump ◽  
And Control

An electric oil pump (EOP) was integrated into the hydraulic system and an automatic transmission (AT) mechanical oil pump (MOP) was downsized. These processes were performed to combine a start-stop function with the AT and further improve the transmission efficiency. Furthermore, this study established a dynamics model of power loss and leakage of an 8-speed AT; a flow-based control algorithm of the EOP was then developed to realize the start-stop function and support the MOP to meet the flow requirement of the system. Based on a driving simulation method, sizes of the MOP and EOP that ensured optimal fuel economy were selected. A control strategy for the starting clutch was also developed to minimize the starting delay of the test vehicle. A test environment on a rig and prototype vehicle was established to verify the feasibility of the proposed control strategies. The test results indicated that the transmission functioned favorably with the novel two-pump system presented, and a quick and smooth starting performance was achieved when the engine was restarted. The findings in this study are extremely valuable for forward designs of an AT for realizing start-stop function and improving efficiency.

Co-generation ability investigation of the novel structured PVT heat pump system and its effect on the “Carbon neutral” strategy of Shanghai

Energy ◽  
2022 ◽  
Vol 239 ◽  
pp. 121863
Author(s):  
Jian Yao ◽  
Pengbo Dou ◽  
Sihang Zheng ◽  
Yao Zhao ◽  
Yanjun Dai ◽  
...  
Keyword(s):  
Heat Pump ◽  
The Novel ◽  
Pump System ◽  
Heat Pump System ◽  
Carbon Neutral
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