Insecure food additive sensing with photonic crystal fibre in terahertz regime

Md Abdullah-Al-Shafi; Shuvo Sen; Mashiyat Mubassera

doi:10.1080/09500340.2025.2456782

Insecure food additive sensing with photonic crystal fibre in terahertz regime

Md Abdullah-Al-Shafi, Shuvo Sen Mashiyat Mubassera

Journal of modern optics, Vol.71(19-21), pp.762-770

14/12/2024

: https://doi.org/10.1080/09500340.2025.2456782

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url

Insecure food additive sensing with photonic crystal fibre in terahertz regime

Published (Version of record)

photonic crystal fibre

confinement loss

V-parameter

food additives

relative sensitivity

Food security and the challenges of food sterility, storage, chemical additives, enzymes, and microorganisms are critical due to their direct impact on human and animal health. Advanced monitoring technologies are essential for ensuring food safety and promoting eco-friendly practices. Early detection and real-time monitoring of sensitive substances, chemicals, biomolecules, and hazardous agents are vital. This research introduces a photonic crystal fibre (PCF) nanosensor designed for detecting food additives. Using COMSOL Multiphysics software, the sensor's numerical performance was analyzed with test analytes-saccharin, sorbitol, and butyl acetate-across a wavelength range of 0.8 to 3 THz. The sensor demonstrated high sensitivities of 88.90%, 90.85%, and 86.95%, and low confinement losses of 5.05 x 10-08, 6.05 x 10-08, and 5.40 x 10-08 dB/m at 1 THz. These results confirm the sensor's effectiveness for real-time detection and its potential for enhancing food safety standards through precise, eco-friendly monitoring.

: Insecure food additive sensing with photonic crystal fibre in terahertz regime
: Md Abdullah-Al-Shafi - Southern Cross University
Shuvo Sen - Mawlana Bhashani Science and Technology University
Mashiyat Mubassera - University of Nebraska–Lincoln
: Journal of modern optics, Vol.71(19-21), pp.762-770
: Taylor & Francis
: 9
: 991013372735502368
: © 2025 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited, and is not altered, transformed, or built up on in any way. The terms on which this article has been published allow the posting of the Accepted Manuscript in a repository by the author(s) or with their consent.
: Faculty of Science and Engineering
: English
: Journal article