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Achievements in the development of plasmonic waveguide sensors for measuring the refractive index
N.L. Kazanskiy 1,2, M.A. Butt 2, S.A. Degtyarev 1,2, S.N. Khonina 1,2

IPSI RAS – Branch of the FSRC "Crystallography and Photonics" RAS,
Molodogvardeyskaya 151, 443001, Samara, Russia,
Samara National Research University, Moskovskoye Shosse 34, 443086, Samara, Russia

 PDF, 4437 kB

DOI: 10.18287/2412-6179-CO-743

Pages: 295-318.

Full text of article: Russian language.

Optical sensors are widely used in the biomedical, chemical and food industries. They provide high sensitivity to changes in the refractive index of the environment due to a specific distribution of resonances across the field. The sensitivity of the sensor is highly dependent on its material and structure. In this review, we focused on the analysis of silicon waveguides as a promising component for optical sensor miniaturization, and plasmon refractive index sensors without fluorescent labeling. We presented the latest developments of special types of plasmon structures, such as metal-insulator-metal waveguides, and their application in refractive index sensors. We analyzed numerous types of plasmon waveguides, their geometry, materials and manufacturing processes, as well as possible energy losses. A discussion of the spectral characteristics of recently proposed refractive index sensors, with an emphasis on their sensitivity and quality indicators, is an important part of the review.

plasmonic waveguides, metal-dielectric-metal structures, Lorentz and Fano resonances, refractive index sensors.

Kazanskiy NL, Butt MA, Degtyarev SA, Khonina SN. Achievements in the development of plasmonic waveguide sensors for measuring the refractive index. Computer Optics 2020; 44(3): 295-318. DOI: 10.18287/2412-6179-CO-743.

This work was supported by the Russian Foundation for Basic Research under projects No. 19-17-50131 and by the Ministry of Science and Higher Education within the government project of FSRC “Crystallography and Photonics” RAS under agreement 007-ГЗ/Ч3363/26.


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