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year 28, Issue 2 (ICOP & ICPET 2022 2022)
ICOP & ICPET _ INPC _ ICOFS 2022, 28(2): 525-528 |
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Shirin S, madani A, roshan entezar S. Properties of defect modes in a photonic crystal with a defect structurally chiral layer. ICOP & ICPET _ INPC _ ICOFS 2022; 28 (2) :525-528
URL: http://opsi.ir/article-1-2560-en.html
URL: http://opsi.ir/article-1-2560-en.html
1- University of Bonab
2- University of Tabriz
2- University of Tabriz
Abstract: (720 Views)
In this paper, the properties of photonic defect modes in a one-dimensional photonic crystal made of alternate layers of isotropic dielectric medium with a central defect layer consisting of a structurally chiral medium have been investigated using the transfer matrix method. The structurally chiral material is taken to possess locally a 
point group symmetry. The results show that the suggested structure possesses a photonic bandgap in the optical region. Also, four defect modes are created in the photonic bandgap due to the breaking of the periodicity of the photonic crystal lattice. It is shown that the tilt angle can change the number and position of these defect modes in transmission spectra of the structure.
point group symmetry. The results show that the suggested structure possesses a photonic bandgap in the optical region. Also, four defect modes are created in the photonic bandgap due to the breaking of the periodicity of the photonic crystal lattice. It is shown that the tilt angle can change the number and position of these defect modes in transmission spectra of the structure.
Type of Study: Experimental |
Subject:
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