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Numerical optimization of refractive index sensors based on diffraction gratings with high aspect ratio in terahertz range. / Kameshkov, Oleg; Gerasimov, Vasily; Knyazev, Boris.

In: Sensors, Vol. 22, No. 1, 172, 01.01.2022.

Research output: Contribution to journal › Article › peer-review

Harvard

Kameshkov, O, Gerasimov, V & Knyazev, B 2022, 'Numerical optimization of refractive index sensors based on diffraction gratings with high aspect ratio in terahertz range', Sensors, vol. 22, no. 1, 172. https://doi.org/10.3390/s22010172

APA

Kameshkov, O., Gerasimov, V., & Knyazev, B. (2022). Numerical optimization of refractive index sensors based on diffraction gratings with high aspect ratio in terahertz range. Sensors, 22(1), [172]. https://doi.org/10.3390/s22010172

Vancouver

Kameshkov O, Gerasimov V, Knyazev B. Numerical optimization of refractive index sensors based on diffraction gratings with high aspect ratio in terahertz range. Sensors. 2022 Jan 1;22(1):172. doi: 10.3390/s22010172

Author

Kameshkov, Oleg ; Gerasimov, Vasily ; Knyazev, Boris. / Numerical optimization of refractive index sensors based on diffraction gratings with high aspect ratio in terahertz range. In: Sensors. 2022 ; Vol. 22, No. 1.

BibTeX

@article{fe06b50b835748fa99542fe5bbce6efc,
title = "Numerical optimization of refractive index sensors based on diffraction gratings with high aspect ratio in terahertz range",
abstract = "Terahertz surface plasmon resonance (SPR) sensors have been regarded as a promising technology in biomedicine due to their real-time, label-free, and ultrasensitive monitoring features. Different authors have suggested a lot of SPR sensors, including those based on 2D and 3D metamate-rials, subwavelength gratings, graphene, and graphene nanotube, as well as others. However, one of the traditional approaches to realize high sensitivity SPR sensors based on metal diffraction gratings has been studied poorly in the terahertz frequency range. In this article, a linear metal rectangular diffraction grating with high aspect ratio is studied. The influence of the grating structure parameters on the sensor sensitivity is simulated. Effects arising from different ratios of depth and width were discovered and explained. The results show that the sensitivity can be increased to 2.26 THz/RIU when the refractive index range of the gas to measure is between 1 and 1.002 with the resolution 5 × 10−5 RIU.",
keywords = "Linear diffraction gratings, Refractive index sensing, Surface plasmon resonance, Terahertz range, Surface Plasmon Resonance, Graphite, Refractometry, Equipment Design",
author = "Oleg Kameshkov and Vasily Gerasimov and Boris Knyazev",
note = "Publisher Copyright: {\textcopyright} 2021 by the authors. Licensee MDPI, Basel, Switzerland.",
year = "2022",
month = jan,
day = "1",
doi = "10.3390/s22010172",
language = "English",
volume = "22",
journal = "Sensors",
issn = "1424-3210",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
number = "1",

}

RIS

TY - JOUR

T1 - Numerical optimization of refractive index sensors based on diffraction gratings with high aspect ratio in terahertz range

AU - Kameshkov, Oleg

AU - Gerasimov, Vasily

AU - Knyazev, Boris

N1 - Publisher Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland.

PY - 2022/1/1

Y1 - 2022/1/1

N2 - Terahertz surface plasmon resonance (SPR) sensors have been regarded as a promising technology in biomedicine due to their real-time, label-free, and ultrasensitive monitoring features. Different authors have suggested a lot of SPR sensors, including those based on 2D and 3D metamate-rials, subwavelength gratings, graphene, and graphene nanotube, as well as others. However, one of the traditional approaches to realize high sensitivity SPR sensors based on metal diffraction gratings has been studied poorly in the terahertz frequency range. In this article, a linear metal rectangular diffraction grating with high aspect ratio is studied. The influence of the grating structure parameters on the sensor sensitivity is simulated. Effects arising from different ratios of depth and width were discovered and explained. The results show that the sensitivity can be increased to 2.26 THz/RIU when the refractive index range of the gas to measure is between 1 and 1.002 with the resolution 5 × 10−5 RIU.

AB - Terahertz surface plasmon resonance (SPR) sensors have been regarded as a promising technology in biomedicine due to their real-time, label-free, and ultrasensitive monitoring features. Different authors have suggested a lot of SPR sensors, including those based on 2D and 3D metamate-rials, subwavelength gratings, graphene, and graphene nanotube, as well as others. However, one of the traditional approaches to realize high sensitivity SPR sensors based on metal diffraction gratings has been studied poorly in the terahertz frequency range. In this article, a linear metal rectangular diffraction grating with high aspect ratio is studied. The influence of the grating structure parameters on the sensor sensitivity is simulated. Effects arising from different ratios of depth and width were discovered and explained. The results show that the sensitivity can be increased to 2.26 THz/RIU when the refractive index range of the gas to measure is between 1 and 1.002 with the resolution 5 × 10−5 RIU.

KW - Linear diffraction gratings

KW - Refractive index sensing

KW - Surface plasmon resonance

KW - Terahertz range

KW - Surface Plasmon Resonance

KW - Graphite

KW - Refractometry

KW - Equipment Design

UR - http://www.scopus.com/inward/record.url?scp=85121756047&partnerID=8YFLogxK

U2 - 10.3390/s22010172

DO - 10.3390/s22010172

M3 - Article

C2 - 35009715

AN - SCOPUS:85121756047

VL - 22

JO - Sensors

JF - Sensors

SN - 1424-3210

IS - 1

M1 - 172

ER -

ID: 35126028