An approximately omnidirectional defect mode of the TE wave from one-dimensional photonic crystals doped by negative-index materials

Fang, Yang; Ouyang, Zhengbiao

doi:10.1088/1464-4258/11/4/045103

Cited by 9 publications

(2 citation statements)

References 19 publications

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“…As a light beam impinged upon the system, the reflection and transmission coefficients were denoted by r and t, respectively. The two coefficients could be obtained by the transfer matrix method (TMM) [37,38]. The transmittance T was identified as T = tt* = I t /I i , where I t and I i are the transmitted and incident intensities, respectively.…”

Section: Unidirectional Invisibility and Laser Pointsmentioning

confidence: 99%

Unidirectional Invisibility Induced by Complex Anti-Parity–Time Symmetric Periodic Lattices

et al. 2019

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Complex anti-parity-time symmetric periodic lattices, in a wide frequency band, can act as unidirectional invisible media. The reflection from one end is suppressed while it is enhanced from the other. Furthermore, unidirectional laser points (ULPs) which correspond to the poles of reflection from one end, arise in the parameter space composed of the permittivity and angular frequency. The phase of the reflection coefficient changes sharply near the ULPs. Subsequently, large lateral shift which is proportional to the slope of phase could be induced for the reflected beam. The study may find great applications in unidirectional invisibility, unidirectional lasers and highly sensitive sensors.

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Section: Unidirectional Invisibility and Laser Pointsmentioning

confidence: 99%

Unidirectional Invisibility Induced by Complex Anti-Parity–Time Symmetric Periodic Lattices

et al. 2019

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“…As a light beam impinges upon the system, the reflection and transmission coefficients are denoted by r and t, respectively. The two coefficients could be obtained by the transfer matrix method (TMM) [32]. The transmittance T is identified as T = tt * = It/Ii, where It and Ii are the transmitted and incident intensities, respectively.…”

Section: Introductionmentioning

confidence: 99%

Reflection Enhancement and Giant Lateral Shift in Defective Photonic Crystals with Graphene

et al. 2019

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This study investigates the reflectance of the defective mode (DM) and the lateral shift of reflected beam in defective photonic crystals incorporated with single-layer graphene by the transfer matrix method (TMM). Graphene, treated as an equivalent dielectric with a thickness of 0.34 nm, was embedded in the center of a defect layer. The reflectance of the DM was greatly enhanced as the intraband transition of electrons was converted to an interband transition in graphene. The reflectance of the DM could be further enhanced by increasing the Bragg periodic number. Furthermore, a large lateral shift of the reflected beam could also be induced around the DM. This study may find great applications in highly sensitive sensors.

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Polarization- and direction-independent defect modes in a wide incident-angle range within Bragg gaps by photonic heterostructures containing negative-index materials

Lin

Fang

et al. 2009

Appl. Phys. B

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An approximately omnidirectional defect mode of the TE wave from one-dimensional photonic crystals doped by negative-index materials

Cited by 9 publications

References 19 publications

Unidirectional Invisibility Induced by Complex Anti-Parity–Time Symmetric Periodic Lattices

Unidirectional Invisibility Induced by Complex Anti-Parity–Time Symmetric Periodic Lattices

Reflection Enhancement and Giant Lateral Shift in Defective Photonic Crystals with Graphene

Polarization- and direction-independent defect modes in a wide incident-angle range within Bragg gaps by photonic heterostructures containing negative-index materials

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