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Lab-on-fiber: plasmonic nano-arrays for sensing
1College of Information Science and Engineering, Northeastern University, Shenyang 110819, China. wangqi@ise.neu.edu.cn.
Nanoscale
|April 1, 2020
Summary
Plasmonic nano-arrays enhance light-matter interactions for improved optical fiber sensors (OFS). This review covers nanofabrication, refractive index sensing, and surface-enhanced Raman scattering (SERS) applications.
Area of Science:
- Photonics and Nanotechnology
- Optical Sensing
- Plasmonics
Background:
- Enhancing light-matter interactions is crucial for surface plasmon resonance (SPR) and localized surface plasmon resonance (LSPR) sensors.
- Plasmonic nano-arrays offer tunable optical effects through structural parameter control.
- Lab-on-fiber technology enables remote microsensors for challenging environments like in vivo systems.
Purpose of the Study:
- To review and compare nanofabrication technologies for plasmonic nano-arrays.
- To analyze optical fiber sensors (OFS) utilizing plasmonic nano-arrays.
- To summarize current research, applications, and future trends in plasmonic nano-array OFS.
Main Methods:
- Comparison of advantages and disadvantages of various nanofabrication techniques.
- Review of plasmonic nano-array optical fiber sensors (OFS).
- Analysis of sensors based on geometry, material, and dimensions of nano-arrays.
Main Results:
- Plasmonic nano-array OFS are categorized into refractive index sensors and surface-enhanced Raman scattering (SERS) sensors.
- Refractive index sensors leverage environmental sensitivity.
- SERS sensors utilize local electric field enhancement.
Conclusions:
- Plasmonic nano-arrays are key to advancing OFS performance.
- Further development is expected in sensor design and application scope.
- Future trends point towards integrated and highly sensitive plasmonic sensing platforms.
