چكيده به لاتين
Photonic crystals are periodic structures that are very suitable for controlling the propagation of electromagnetic waves.
Using a photonic crystal with a defect structure leads to the creation of new structures such as resonators, waveguides,
and photonic crystal-based sensors. In this thesis, by creating a defect layer in the alternating crystal structure
One-dimensional photonics and using the transfer matrix numerical method, the ability to use this structure as a
A biological sensor or a biosensor based on a photonic crystal, specifically for determining the concentration of urea in the blood.
we investigated. Investigations show that the defect mode, both in terms of emission and wavelength, is due to a small change in urea concentration
It is sensitive in the blood. Since the structural features of the photonic crystal depend on various parameters, such as the number
It depends on the frequency of the layers, the thickness of the dielectric or air layers, the material of the layers, the thickness of the defect layer, etc.
Here, the effect of some of these parameters has been investigated and the changes in failure mode caused by them have been measured.
