Abstract
In recent decades, extensive studies have been conducted on biosensors. Of these, biosensors are of great importance, and various photonic structures have been used to design these types of sensors. In this work, optimization of the performance of photonic crystal-based biosensor has been addressed. The nano-resonant sensor is within the structure and is surrounded by two waveguides. The resonator is formed by the smaller air cavities. In order to increase the optical constraint and better coupling of light between the waveguides and the resonator, two finis waveguides have been used. By connecting the biological molecule to the measuring cavity wall, its refractive index will change and the wavelength of the resonant structure will be shifted. Several parameters such as number, thickness of layers and slope affect this sensitivity. By optimizing these parameters, changes in the refractive index can be detected.
Highlights
Nowadays, various biosensors are presented for the rapid and reliable analysis of various parameters in the fields of nanotechnology, food preservation, biomedical research, production and testing of medicines, etc. [1, 2, 3]
Xudong et al (2018) show a gold-plated photonic crystal fiber (PCF) refractive index sensor according to surface plasmon resonance (SPR), that gold is filled on the external surface of PCF for proper production and applied determination
The performance of a two-dimensional photonic crystal biosensor improved with the optimization of different parameters and the FDTD method
Summary
Various biosensors are presented for the rapid and reliable analysis of various parameters in the fields of nanotechnology, food preservation, biomedical research, production and testing of medicines, etc. [1, 2, 3]. A main design concept to propose radiation loss is prepared: the development of the cavity state field must have no absolute shift and may ideally peruse a Gaussian equation They explain light/photon manipulation methods that are powered by the appearance of photonic crystal nano-cavities, consisting ultra-compact channel add/drop filters, strong coupling between distant nano-cavities, as well as ultralow-threshold silicon nano-cavity Raman lasers by the adiabatic assignment of photons [25]. Chen (2018) showed a new D-shaped photonic crystal fiber refractive indicator sensor according to surface plasmon resonance (SPR). Xudong et al (2018) show a gold-plated photonic crystal fiber (PCF) refractive index sensor according to surface plasmon resonance (SPR), that gold is filled on the external surface of PCF for proper production and applied determination. We design two-dimensional photonic crystal biosensor using different important semiconductors at room temperature, which, by Universal Journal of Electrical and Electronic Engineering 6(4): 203-213, 2019 analyzing various diagrams related to the frequency structure and comparing them with each other, give the best semiconductor in its polarization for the square structure
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