A novel rhombic shaped photonic crystal bio-sensor for identifying disorders in the blood samples
In this work, a single and dual rhombic-shaped ring resonator (RR) bio-sensor using 2D photonic crystal (2D-PhC) are designed and simulated with circular Si rods in a square lattice in an air arrangement. The photonic band gap (PBG) of the structure is calculated using plane wave expansion (PWE) met...
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Published in | Optical and quantum electronics Vol. 55; no. 4 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
New York
Springer US
01.04.2023
Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | In this work, a single and dual rhombic-shaped ring resonator (RR) bio-sensor using 2D photonic crystal (2D-PhC) are designed and simulated with circular Si rods in a square lattice in an air arrangement. The photonic band gap (PBG) of the structure is calculated using plane wave expansion (PWE) method. The simulation and investigation of the bio-sensor structure is carried out using finite-difference time-domain (FDTD) method. The optimized simulation parameters like rod radius, lattice constant, angle of incidence and cavity thickness are 142 nm, 630 nm, 90° and 2 μm respectively. A small change in refractive index (RI) will cause a considerable shift in the resonant wavelength and transmission output. The proposed bio-sensor is capable of analyzing eleven different components of blood based on the RI. Many blood-related disorders such as nutritional deficiency, inflammatory bowel disease (IBD), leukemia, lymphoma and thalassemia can be found using this bio-sensor in less time and with minimum human effort. The average quality factor (QF), sensitivity and transmission efficiency (η) of the bio-sensor are 3702, 166 (nm/RIU) and 80% respectively. This design is instigated for medical applications with a compactness of 515.29 μm
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ISSN: | 0306-8919 1572-817X |
DOI: | 10.1007/s11082-023-04584-4 |