High Q-factor 2D PCMicrocavity Ring Resonator Based Biosensor for Biomedical Applications

Basavaprasad,; Bahaddur, Indira; Kolli, Venkateswara Rao

doi:10.1109/icait47043.2019.8987280

Cited by 5 publications

(1 citation statement)

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“…In the present work 2d structure is used, it also gives better light confinement inside the structure and steps to fabricate is also not too complex. To obtain required sensing characteristics defects are done in the crystal structure, by removing certain holes or changing the size of the holes [6]. When defects are introduced a pilot wavelength can occur in the bandgap, this gives the reference arm or point in the sensor design.…”

Section: B Photonicsmentioning

confidence: 99%

A novel computation method for detection of Malaria in RBC using Photonic biosensor

Kumar

Panigrahi²,

Vaibhav³

2021

Int. j. inf. tecnol.

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Initial stage detection of malaria is very helpful in reducing the human death rate. Generally manual diagnosis is used for detection of malaria using 100 9 to 600 9 microscope but time required for this process is very large and false report chances are more, which results in death of a person. A high speed, low cost and result accurate biosensor plays a key role in diagnosis of malaria. When malaria parasite's infects RBC's, its mechanical, physical and biochemical structure will get modified results in change of refractive index of RBC. Therefore, refractive index varies from normal RBC to infected RBC. This factor is utilized to design the photonic biosensor for detection of malaria in humans and it is label free detection method. The proposed photonic crystal sensor has 10 lm 9 10 lm dimension. The extracted sample is placed in the sensor holes and light beam with a wavelength of 1.85-1.95 lm is fed inside the bio sensor. If the malaria parasites are present then there will be variation in RI from normal sample results in the wavelength shift. FDTD technique is used for the simulation of this model. Quality factor achieved for this design is 214 and the sensitivity for change in refractive index is 225 nm/RIU.

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Section: B Photonicsmentioning

confidence: 99%