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Numerical Analysis of an Ultra-Sensitive Optical Fiber for Hemoglobin Concentration Detection

Year: 2025

Type: article

Abstract: Hemoglobin is a vital protein in the human body, and its deficiency leads to anemia. This condition reduces oxygen levels in red blood cells, which can be life-threatening. This paper presents the design of a novel optical fiber (OF) sensor for label-free detection of hemoglobin concentration. The sensor features concentric layers of gold and silica arranged sequentially. Finite element method (FEM) simulations were used to analyze its performance. The results indicate that for a refractive index (RI) range of 1.34 to 1.41, the sensor achieves a wavelength sensitivity (Sw) of up to 38,000 nm/RIU and an amplitude sensitivity (SA) of 11,280 RIU−1. The sensor exhibits a resolution of 1.85 × 10−6 RIU and a figure of merit (FOM) of 736.56 RIU−1. Its simple construction and high sensitivity make it a promising candidate for hemoglobin detection applications.

Source: Photonics

DOI: 10.3390/photonics12090933

Authors: Aryan Abbaszadeh, Somayeh Makouei, Samrand Rash-Ahmadi, Sebelan Danishvar

Institutions: University of Tabriz, Urmia University, Brunel University of London

Language: English

Topic: Advanced Fiber Optic Sensors

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,896

OpenAlex ID: W4414355067

FWCI:

Cites: 53

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