scholarly journals An Ultra-Compact Design of Plasmonic Memristor with Low Loss and High Extinction Efficiency Based on Enhanced Interaction between Filament and Concentrated Plasmon

Photonics ◽  
2021 ◽  
Vol 8 (10) ◽  
pp. 437
Author(s):  
Ye Tian ◽  
Saiwen Zhang ◽  
Weishi Tan
Keyword(s):  
Numerical Simulation ◽  
Low Loss ◽  
Switching Device ◽  
Extinction Efficiency ◽  
Vertical Coupling ◽  
Compact Size ◽  
Telecommunication Wavelength ◽  
Numerical Design ◽  
Low Insertion Loss ◽  
Compact Design

We present a numerical design of the plasmonic memristive switching device operated at the telecommunication wavelength of 1.55 μm, which consists of a triangle-shaped metal taper mounted on top of a Si waveguide, with rational doping in the area below the apex of the taper. This device can achieve optimal vertical coupling of light energy from the Si waveguide to the plasmonic region and, at the same time, focus the plasmon into the apex of the metal taper. Moreover, the area with concentrated plasmon is overlapped with that where the memristive switching occurs, due to the formation/removal of the metallic nano-filament. As a result, the highly distinct transmission induced by the switching of the plasmonic memristor can be produced because of the maximized interactions between the filament and the plasmon. Our numerical simulation shows that the device hasa compact size (610 nm), low insertion loss (~1 dB), and high extinction efficiency (4.6 dB/μm). Additionally, we point out that stabilizing the size of the filament is critical to improve the operation repeatability of the plasmonic memristive switching device.

A Self-Packaged Power Divider With Compact Size and Low Loss

2020 ◽  
Vol 67 (11) ◽  
pp. 2437-2441 ◽  
Author(s):  
Ting Feng ◽  
Kaixue Ma ◽  
Yongqiang Wang
Keyword(s):  
Power Divider ◽  
Low Loss ◽  
Compact Size

Low-loss compact-size slotted waveguide polarization rotator and transformer

2007 ◽  
Vol 32 (15) ◽  
pp. 2131 ◽  
Author(s):  
Ning-Ning Feng ◽  
Rong Sun ◽  
Jurgen Michel ◽  
Lionel C. Kimerling
Keyword(s):  
Low Loss ◽  
Polarization Rotator ◽  
Compact Size ◽  
Slotted Waveguide

scholarly journals Design of Tunable Equalizers Using Multilayered Half Mode Substrate Integrated Waveguide Structures Added Absorbing Pillars

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Shuxing Wang ◽  
Yongfei Wang ◽  
Dewei Zhang ◽  
Yi Zhang ◽  
Dongfang Zhou
Keyword(s):  
Multilayer Structure ◽  
Design Method ◽  
The Other ◽  
Mode Analysis ◽  
Substrate Integrated Waveguide ◽  
Low Loss ◽  
Resonant Cavities ◽  
Bottom Substrate ◽  
Compact Size ◽  
First Time

An equalizer based on multilayered half mode substrate integrated waveguide (HMSIW) structures with highQ-factor, low loss, and compact size is proposed for the first time. Resonant cavities distributing in the upper substrate and the bottom substrate, with the middle substrate layer which works as the transmission line together, constitute a multilayer structure. The design method and theoretical analysis are summarized first. The mode analysis, simulated results, and measured results are all provided. The measured results show a good performance and are in agreement with the simulated results, and the maximum attenuation slope reaches −16 dB over 12.5 GHz~14.5 GHz. With the use of absorbing pillars, the attenuation andQvalue can be tuned more easily than the other planar equalizers. Compared with the SIW equalizer, the size of this structure reduces by 50%. Furthermore, this structure is suitable for the miniaturization development of equalizers.

Compact design of a novel linear compliant positioning stage with high out-of-plane stiffness and large travel

2017 ◽  
Vol 232 (12) ◽  
pp. 2265-2279
Author(s):  
Hua Liu ◽  
Xin Xie ◽  
Ruoyu Tan ◽  
Dapeng Fan
Keyword(s):  
Degrees Of Freedom ◽  
Compliant Mechanism ◽  
Area Ratio ◽  
Leaf Spring ◽  
Static Stiffness ◽  
Element Analysis ◽  
Compact Size ◽  
Positioning Stage ◽  
Out Of Plane ◽  
Compact Design

Since most of the XY positioning stages with large travel range proposed in previous studies suffer from low out-of-plane stiffness and loose structure, this paper presents a novel two degrees-of-freedom large travel linear compliant positioning stage with high out-of-plane stiffness and compact size. The linear guide compliant mechanism of the stage takes spatial leaf spring parallelograms as the basic units, which are serially connected to obtain large travel, high out-of-plane stiffness, and compact size simultaneously. The theoretical static stiffness and dynamic resonant frequency are obtained by matrix structural analysis. Finite element analysis is carried out to investigate the characteristics of the developed stage. The analytical model is confirmed by experiments. It is noted that the developed stage has a workspace of 4.4 × 7.0 mm2, and the area ratio of workspace to the outer dimension of the stage is 0.16%, which is greater than that of any existing stage reported in the literature. The results of out-of-plane payload tests indicate that the stage can sustain at least 20 kg out-of-plane payload without changing the travel range. And the positioning experiments show that the developed stage is capable of tracking a circle of radius 1.5 mm with 10 µm error and the resolution is less than 2 µm.

A Low-Loss Self-Packaged Magic-T With Compact Size Using SISL Technology

2018 ◽  
Vol 28 (1) ◽  
pp. 13-15 ◽  
Author(s):  
Yongqiang Wang ◽  
Kaixue Ma ◽  
Shouxian Mou
Keyword(s):  
Low Loss ◽  
Compact Size

Compact Mock Loops of the Systemic and Pulmonary Circulation for Blood Pump Testing

1992 ◽  
Vol 15 (1) ◽  
pp. 40-48 ◽  
Author(s):  
B. Knierbein ◽  
H. Reul ◽  
R. Eilers ◽  
M. Lange ◽  
R. Kaufmann ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Pulmonary Circulation ◽  
Total Artificial Heart ◽  
Physiological Data ◽  
Loop Design ◽  
First Results ◽  
Pump Testing ◽  
Compact Design ◽  
Simulation Parameters

Mock loops are an important tool for in vitro investigations of artificial blood pumps. The simple windkessel, throttle, and atrium principle was used for the mock loop design presented. The components of the systemic and the pulmonary mock loop were designed according to calculated numerical simulation parameters. The loops offer a compact design and simple handling. For simulating biventricular assist or total artificial heart (TAH), both loops can be coupled correspondingly. The numerical simulation and the first results with the loops show very good similarity to physiological data of systemic and pulmonary circulation. The measurements of pump characteristics are significant for quantitative comparison of different pump sizes and types, or driving systems.

scholarly journals Compact Optical Waveguides Based on Hybrid Index and Surface-Plasmon-Polariton Guidance Mechanisms

2007 ◽  
Vol 2007 ◽  
pp. 1-7 ◽  
Author(s):  
Min Yan ◽  
Min Qiu
Keyword(s):  
Surface Plasmon ◽  
Optical Waveguides ◽  
Surface Plasmon Polariton ◽  
Field Size ◽  
Hybrid Index ◽  
Dielectric Waveguides ◽  
Low Loss ◽  
Mode Field ◽  
Telecommunication Wavelength ◽  
Plasmon Polariton

Surface-plasmon-polariton (SPP) waveguides made of materials available in nature have, in general, been found to suffer from very high absorption loss when light confinement is beyond diffraction limit. In this paper, the possibility of combining both the conventional index-guiding and the SPP-guiding mechanisms together into one single waveguide is being explored. Such waveguides, expectedly, inherent the low-loss feature of all-dielectric waveguides as well as the superior mode field confinement possessed by SPP waveguides. By using experimentally ready materials, it is theoretically shown that compact metallodielectric waveguides can be designed with a∼500×500 nm2core size around the 1550 nm telecommunication wavelength. The examined waveguides can be interpreted as a gap SPP waveguide with an inner dielectric core. Compared to pure SPP waveguides, such hybrid waveguides have a comparable mode field size, but with significantly lower loss (∼0.05 dB/μmfor either quasi-TE or quasi-TM operation). Therefore they can be potentially deployed for a range of integrated photonic applications.

Sign in / Sign up

Export Citation Format

Share Document