Nanoparticle detection using fano-resonance photonic crystal on optical fiber-tip

Daquan Yang; Wei Yuan; Yuefeng Ji

doi:10.1117/12.2247427

25 October 2016 Nanoparticle detection using fano-resonance photonic crystal on optical fiber-tip

Daquan Yang, Wei Yuan, Yuefeng Ji

Proceedings Volume 10158, Optical Communication, Optical Fiber Sensors, and Optical Memories for Big Data Storage; 101581I (2016) https://doi.org/10.1117/12.2247427
Event: International Symposium on Optoelectronic Technology and Application 2016, 2016, Beijing, China

Abstract

Recently, Fano-resonance photonic crystals (PhC) have been employed within a wide variety of nanophotonic structures for different applications, including imaging, filtering, switching, sensing, and so on. In this paper, we propose a convenient and compact fiber-optic sensor based on optical fiber-tips integrated with Fano-resonance pillar-array PhC. The quality factor 1.04×10⁴ and refractive index sensitivity of 226 nm per refractive index unit (RIU) have been demonstrated. In addition, the proposed Fiber-PhC integrated senor structure can be used for nanoparticle detection by checking the reflection spectrum shift with a narrow line-width. Using this method, we demonstrate that the detection of polystyrene nanoparticles with dimensions down to 50 nm in radius can be achieved. Thus, we believe that the design and results presented here are promising and enable the implementation of simple but functional fiber-optic sensors and devices.

Citation Download Citation

Daquan Yang, Wei Yuan, and Yuefeng Ji "Nanoparticle detection using fano-resonance photonic crystal on optical fiber-tip", Proc. SPIE 10158, Optical Communication, Optical Fiber Sensors, and Optical Memories for Big Data Storage, 101581I (25 October 2016); https://doi.org/10.1117/12.2247427

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