Queer behaviors of multiple interface states in nonlinear photonic crystal heterostructure

In this paper, Dirac point method is used to study the interface state of one-dimensional photonic crystal heterojunction [Formula: see text] containing dispersive materials GaAs. We found that the energy levels of the interface states satisfy a simple sinusoidal function. We investigate the variation of the energy levels of the interface states with the incident angle, it is found that these interface states move toward high-frequency with the increase of the incident angle. At the same time, it is found that there is an extra localized band and it is further proved that the extra band corresponds to the defect band, and the energy levels of the defect band possess the same behavior with those of interface states.

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Facile way to obtain multiple interface modes in a photonic crystal heterostructure

Optics Letters ◽

10.1364/ol.43.003216 ◽

2018 ◽

Vol 43 (14) ◽

pp. 3216 ◽

Cited By ~ 8

Author(s):

Li-Ming Zhao ◽

Yun-Song Zhou ◽

Ai-Hua Wang

Keyword(s):

Photonic Crystal ◽

Multiple Interface ◽

Photonic Crystal Heterostructure

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Highly efficient second-harmonic generation from a two-dimensional linear–nonlinear photonic crystal heterostructure

Journal of the Optical Society of America B ◽

10.1364/josab.31.003018 ◽

2014 ◽

Vol 31 (12) ◽

pp. 3018 ◽

Cited By ~ 3

Author(s):

Jun Zhang ◽

Mingda Zhang ◽

Yineng Liu ◽

Xiangdong Zhang

Keyword(s):

Photonic Crystal ◽

Second Harmonic Generation ◽

Harmonic Generation ◽

Second Harmonic ◽

Two Dimensional ◽

Highly Efficient ◽

Nonlinear Photonic Crystal ◽

Photonic Crystal Heterostructure

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Dynamically tunable interface states in 1D graphene-embedded photonic crystal heterostructure

Journal of Physics Condensed Matter ◽

10.1088/1361-648x/aaa942 ◽

2018 ◽

Vol 30 (9) ◽

pp. 095702 ◽

Cited By ~ 1

Author(s):

Zhao Huang ◽

Shuaifeng Li ◽

Xin Liu ◽

Degang Zhao ◽

Lei Ye ◽

...

Keyword(s):

Photonic Crystal ◽

Interface States ◽

Photonic Crystal Heterostructure

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An all optical photonic crystal half adder suitable for optical processing applications

Journal of Optical Communications ◽

10.1515/joc-2020-0261 ◽

2021 ◽

Vol 0 (0) ◽

Author(s):

Hamed Azhdari ◽

Sahel Javahernia

Keyword(s):

Photonic Crystal ◽

Optical Waveguides ◽

High Speed ◽

Building Blocks ◽

Optical Signal ◽

Ring Resonators ◽

Optical Processing ◽

Nonlinear Photonic Crystal ◽

Half Adder ◽

All Optical

Abstract Increasing the speed of operation in all optical signal processing is very important. For reaching this goal one needs high speed optical devices. Optical half adders are one of the important building blocks required in optical processing. In this paper an optical half adder was proposed by combining nonlinear photonic crystal ring resonators with optical waveguides. Finite difference time domain method wase used for simulating the final structure. The simulation results confirmed that the rise time for the proposed structure is about 1 ps.

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All optical NAND/NOR and majority gates using nonlinear photonic crystal ring resonator

Journal of Optical Communications ◽

10.1515/joc-2020-0246 ◽

2021 ◽

Vol 0 (0) ◽

Author(s):

Hassan Mamnoon-Sofiani ◽

Sahel Javahernia

Keyword(s):

Photonic Crystal ◽

Ring Resonator ◽

Logic Gates ◽

Building Blocks ◽

Optical Data ◽

Optical Logic ◽

Optical Logic Gates ◽

Nonlinear Photonic Crystal ◽

All Optical ◽

Photonic Crystal Ring Resonator

Abstract All optical logic gates are building blocks for all optical data processors. One way of designing optical logic gates is using threshold switching which can be realized by combining an optical resonator with nonlinear Kerr effect. In this paper we showed that a novel structure consisting of nonlinear photonic crystal ring resonator which can be used for realizing optical NAND/NOR and majority gates. The delay time of the proposed NAND/NOR and majority gates are 2.5 ps and 1.5 ps respectively. Finite difference time domain and plane wave expansion methods were used for simulating the proposed optical logic gates. The total footprint of the proposed structure is about 988 μm2.

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