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Self‐Collimation and Slow Light‐Based Refractive Index Sensor with a Large Detection Range

Self‐Collimation and Slow Light‐Based Refractive Index Sensor with a Large Detection Range In this study, a refractive index sensor based on self‐collimation and slow light is presented which operates in the Mid‐IR range (4 µm < λ < 4.133 µm). Here, the square and hexagonal arrays are merged as the background platform and the sensing area, respectively to provide self‐collimation and slow light properties. Three sensors based on slow‐light and self‐collimation are presented in detail which provide Q‐factor, sensitivity, and detection range of 227, 104 nm RIU−1, and 1–1.7, respectively in the best case. Furthermore, the sensor design based on self‐collimation and photonic bandgap phenomena in the background platform and the sensing area, respectively is presented with a single detection unit. The presented sensors are capable of gas or liquid detection with refractive indices in the range of 1–2 with enhanced Q‐factor and sensitivity of over 620 and 123, respectively. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annalen Der Physik Wiley

Self‐Collimation and Slow Light‐Based Refractive Index Sensor with a Large Detection Range

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References (43)

Publisher
Wiley
Copyright
© 2021 Wiley‐VCH GmbH
ISSN
0003-3804
eISSN
1521-3889
DOI
10.1002/andp.202100052
Publisher site
See Article on Publisher Site

Abstract

In this study, a refractive index sensor based on self‐collimation and slow light is presented which operates in the Mid‐IR range (4 µm < λ < 4.133 µm). Here, the square and hexagonal arrays are merged as the background platform and the sensing area, respectively to provide self‐collimation and slow light properties. Three sensors based on slow‐light and self‐collimation are presented in detail which provide Q‐factor, sensitivity, and detection range of 227, 104 nm RIU−1, and 1–1.7, respectively in the best case. Furthermore, the sensor design based on self‐collimation and photonic bandgap phenomena in the background platform and the sensing area, respectively is presented with a single detection unit. The presented sensors are capable of gas or liquid detection with refractive indices in the range of 1–2 with enhanced Q‐factor and sensitivity of over 620 and 123, respectively.

Journal

Annalen Der PhysikWiley

Published: Jul 1, 2021

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