Linear and interface defects in composite linear photonic lattice

Krasić, Marija Stojanović; Mancic, A.; Kuzmanović, Slavica; Veljković, Snežana Đorić; Stepić, Milutin

doi:10.1016/j.optcom.2017.02.021

Cited by 6 publications

(3 citation statements)

References 48 publications

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“…Defects can be obtained, accidentally or deliberately, by varying the geometry of the lattice or its refractive index. The geometry of the lattice can be changed by adding an interface between two sublattices that form a composite lattice [15][16][17], by changing the width of a waveguide so that it differs from other waveguides in the array or by setting a spacing between two waveguides to be different from the rest of the array [18,19]. These changes enable the occurrence of different types of strongly localized modes.…”

Section: Introductionmentioning

confidence: 99%

Asymmetric defects in one-dimensional photonic lattices

Jovanović¹,

Krasić²

2021

Laser Phys.

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The influence of linear and nonlinear asymmetric defects on light beam propagation in a one-dimensional photonic lattice has been numerically analysed. Defects are located in a uniform or composite lattice and can be linear or nonlinear in both cases. The results obtained for the uniform lattice were compared with those obtained for the composite lattice. The asymmetric defect width was varied. It was found that the width of asymmetric defects plays a significant role in light beam propagation. A comparison with the corresponding symmetric defects was also performed. Various types of strongly localized defect modes were found at the defect position as well as in the cavities between the asymmetric defects or an asymmetric defect and the interface. In addition to localized modes, we found reflection and transmission of light.

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Section: Introductionmentioning

confidence: 99%

Asymmetric defects in one-dimensional photonic lattices

Jovanović¹,

Krasić²

2021

Laser Phys.

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“…The zonal structure can be changed by introducing defect into the lattice (Yablonovitch, 1993;Meade et al, 1993). Control of light propagation in onedimensional (1D) photonic crystals is possible by changes system parameters, such as refractive index, lattice period and the width of defect (Suntsov et al, 2006;Matias et al, 2003;Kuzmanović, 2016;Stojanović Krasić et al, 2017). The defects disrupt translational symmetry and enables the formation of localized defect modes (Gupta et al, 1997, Tsai et al, 1998.…”

Section: Introductionmentioning

confidence: 99%

Light capturing within the defect located in linear one-dimensional photonic lattice

Jovanović¹,

Krasić

2021

Bull Nat Sci Research

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“…These defects destroy the translation symmetry of the system but, at the same time, they enable the existence of different stable, localized modes ( (Beličev et al, 2010), (Fedele et al, 2005), (Molina et al, 2008)). Recently, the influence of nonlinear defect (ND) on the light beam propagation in one-dimensional (1D) linear uniformed lattice has been investigated (Kuzmanović et al, 2015a) as well as the influence of linear defect (LD) and interface defect on the beam dynamics (Stojanović Krasić et al, 2016).…”

Section: Introductionmentioning

confidence: 99%