Zeyu Lei

ORCID: 0000-0003-4233-0860
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About
Contact & Profiles
Research Areas
  • Plasmonic and Surface Plasmon Research
  • Photonic and Optical Devices
  • Industrial Vision Systems and Defect Detection
  • Advanced Fiber Optic Sensors
  • Orbital Angular Momentum in Optics
  • Gold and Silver Nanoparticles Synthesis and Applications
  • Power Line Inspection Robots
  • Metamaterials and Metasurfaces Applications
  • Advancements in Photolithography Techniques
  • Thin-Film Transistor Technologies
  • Semiconductor materials and devices
  • Nanowire Synthesis and Applications
  • Advanced Biosensing Techniques and Applications
  • Photonic Crystals and Applications
  • Thermal Radiation and Cooling Technologies
  • Advanced Antenna and Metasurface Technologies
  • Icing and De-icing Technologies
  • Electron and X-Ray Spectroscopy Techniques
  • Silicon and Solar Cell Technologies
  • Optical Coatings and Gratings
  • Electrostatic Discharge in Electronics
  • Radiation Effects in Electronics

Shanghai Jiao Tong University
2015-2022

Hunan University
2022

University of Michigan
2019

Surface enhanced Raman scattering (SERS) in nanoscale hotspots has been placed great hopes upon for identification of minimum chemical traces and in-situ investigation single molecule structures dynamics. However, previous work consists either irreproducible enhancement factors (EF) from random aggregates, or moderate EFs despite better reproducibility. Consequently, systematic study SERS at the few molecules level is still very limited, promised applications are far being realized. Here we...

10.1038/srep33218 article EN cc-by Scientific Reports 2016-09-13

Surface plasmon devices mounted at the end-facets of optical fibers are appealing candidates for rapid and point-of-care sensing applications, by offering a special dip-and-read operation mode. At present, these devices' noise-equivalent limits-of-detection lag far behind free-space counterparts, leaving them incapable most biosensing applications. Here we report quasi-3D Fano resonance cavity its fabrication method to fundamentally improve quality factor coupling efficiency fiber-coupled...

10.37188/lam.2022.046 article EN Deleted Journal 2022-01-01

We have designed and experimentally demonstrated a radial azimuthal polarization converter, which is plasmonic metasurface with radius of not more than 5 μm. The composed an array metal-insulator-metal gap plasmon resonators, each reflects the incident local electric field to predesignated angle. simulation results show effective conversion within broad band from 700 930 nm.

10.1109/lpt.2017.2675453 article EN IEEE Photonics Technology Letters 2017-03-01

Integrating surface plasmon resonance (SPR) devices upon single-mode fiber (SMF) end facets renders label-free biosensing systems that have a dip-and-read configuration, high compatibility with fiber-optic techniques, and in vivo monitoring capability, which however meets the challenge to match performance of free-space counterparts. We report second-order distributed feedback (DFB) SPR cavity on an SMF facet its application protein interaction analysis. In our device, periodic array...

10.1063/1.4982625 article EN Applied Physics Letters 2017-04-24

Mechanical flexibility and advanced light management have gained great attentions in designing high performance, flexible thin film photovoltaics for the realization of building-integrated optoelectronic devices portable energy sources. This study develops a soft thermal nanoimprint process fabricating nanostructure decorated substrates integrated with amorphous silicon solar cells. Amorphous (a-Si:H) cells been constructed on nanoholes array textured polyimide (PI) substrates. It has...

10.1038/s41598-017-13655-y article EN cc-by Scientific Reports 2017-10-09

Realizing the standardization, intellectualization and automation of power line patrol is ultimate goal development service. In this paper, history briefly described, feasibility AI-enabled industry analyzed. The "UAV AI intelligent analysis" processing scheme proposed, future deep integration grid prospected.

10.1109/ichve49031.2020.9279634 article EN 2020-09-06

We report the design and experimental realization of a kind miniaturized devices for efficient unidirectional launching shaping surface plasmon polaritons (SPPs). Each device consists an array evenly spaced gap resonators with varying dimensions. Particle swarm optimization is used to achieve theoretical two dimensional efficiency about 51%, under normal illumination 5-{\mu}m waist Gaussian beam at 780 nm. By modifying wavefront SPPs, SPPs focused, Bessel Airy profiles are launched imaged...

10.1063/1.4947431 article EN Applied Physics Letters 2016-04-18

The coupling between photons and lattice plasmons in metallic nanostructure arrays makes them good candidates to build radiative surface plasmon polariton (SPP) lasers. We report lasing action from the defect state a second-order distributed feedback SPP cavity. In this device, silver nanoslit array confines SPPs its bandgap, while phase shift section introduces high-quality-factor for lasing. At same time, fundamental order grating diffraction of provides high extraction efficiency photons....

10.1021/acsphotonics.8b01789 article EN ACS Photonics 2019-02-28

In response to the current issue of inability accurately transport overhead ground wire repair robots points and efficiently broken loose wires, this paper designs an robot based on unmanned aerial vehicle. Firstly, mechanical structure was selected de-signed achieve information transmission collaborative operation various modules; Then, dual closed-loop PID control method is used stable position posture drone, achieving drone’s tracking robot’s position. At same time, detachment device are...

10.22541/au.171364766.62802903/v1 preprint EN Authorea (Authorea) 2024-04-20

Mask defectivity remains a key focus area for the enablement of extreme ultraviolet (EUV) lithography in high-volume manufacturing (HVM) at both mask and IC facilities. To improve defect detection on EUV patterns, wafer inspection tools are operated with high sensitivity advanced algorithms, coupled SEM e-beam review tools, all which generate substantial amounts data. This data must be thoroughly examined to identify any possible source information overall performance outgoing, fab incoming,...

10.1117/12.3033686 article EN 2024-11-12

In advanced manufacturing fabs, mask inspection plays a pivotal role in securing the quality and wafer yield. A single defect on can potentially impact thousands of wafers, underscoring criticality accurate disposition. While operators confidently classify approximately 90% defects manually, remaining 10% are often misclassified, directly affecting production As technology nodes shrink, adoption techniques such as Optical Proximity Correction (OPC) Sub-Resolution Assist Feature (SRAF) poses...

10.1117/12.3034265 article EN 2024-11-20

In the photomask manufacturing industry, producing defect-free photomasks is a significant challenge. The processes of defect inspection, repair, and metrology are employed to ensure masks defect-free. Within this process flow, Aerial Image Measurement System (AIMS) tool widely used as industry's benchmark for evaluating printing impact determining if suspected requires repair. However, in mature node manufacturing, product quantity large, AIMS 248™ loading heavy, sometimes doing review all...

10.1117/12.3053069 article EN 2024-12-10

We demonstrate the generation of radially and azimuthally polarized beams using an ultra compact metasurface. The metasurface is composed array gap plasmon resonators with distinct orientation angles.

10.1364/fio.2015.fw5d.3 article EN Frontiers in Optics 2015-01-01

In modern advanced IC fabs, reticle management is essential for process control and yield management, since any issue can potentially impact thousands of wafers, resulting in a huge economic loss. For caused issues, the possibility human mistakes made defect disposition has dramatically increased as defects on reticles become more complicated. The difficulty originates from smaller critical dimension (CD) complex pattern designs like aggressive OPC SRAF. Conventionally, after inspection done...

10.1117/12.2598020 article EN 2021-08-23

We report a compact device for the efficient launching of unidirectional surface plasmon polaritons (SPPs). Unidirectional SPPs with focused, Bessel and Airy profiles have also been experimentally realized by adjusting wavefront.

10.1364/fio.2015.fth3f.7 article EN Frontiers in Optics 2015-01-01

10.4229/23rdeupvsec2008-3bv.4.20 article EN 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain 2008-11-01

Surface plasmon resonance (SPR) devices have been widely used in label-free biosensing applications due to their convenient surface wave configuration and the capability optically detect biomolecule binding with a high stability uniformity between different experiments. Meanwhile, integrating SPR nanostructures onto single-mode fiber (SMF) end facets provides unique advantages such as flexible geometry, compact sizes vivo monitoring capability. To improve performance of SMF facet which are...

10.1117/12.2248789 article EN 2017-04-21
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