scholarly journals Graphene-based low-threshold and tunable optical bistability in one-dimensional photonic crystal Fano resonance heterostructure at optical communication band

2020 ◽  
Vol 28 (23) ◽  
pp. 34948
Author(s):  
Yuxiang Peng ◽  
Jiao Xu ◽  
Hu Dong ◽  
Xiaoyu Dai ◽  
Jie Jiang ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Optical Communication ◽  
Fano Resonance ◽  
Optical Bistability ◽  
One Dimensional ◽  
Dimensional Photonic Crystal ◽  
Low Threshold

scholarly journals Tunable Optical Bistability in One-Dimensional Photonic Crystal with a Nonlinear Defect Coupled by Graphene Sheets

2017 ◽  
Vol 2017 ◽  
pp. 1-6 ◽  
Author(s):  
Zhiwei Zheng ◽  
Leyong Jiang ◽  
Jun Guo ◽  
Xiaoyu Dai ◽  
Yuanjiang Xiang
Keyword(s):  
Photonic Crystal ◽  
Fermi Energy ◽  
Optical Bistability ◽  
Lateral Shift ◽  
The Other ◽  
Graphene Sheets ◽  
Hysteresis Width ◽  
One Dimensional ◽  
Graphene Layers ◽  
Dimensional Photonic Crystal

The optical bistability in one-dimensional photonic crystal (1DPC) with a nonlinear defect is investigated. It is demonstrated that, by introducing graphene layers into the nonlinear defect, the optical bistability in 1DPC can be changed significantly. The hysteresis threshold increases with the number of graphene monolayers and can be lowered or enhanced by tuning the Fermi energy of graphene. On the other hand, the hysteresis width and the nonlinear lateral shift can also be controlled by varying the Femi energy and the number of graphene monolayers. These results may be useful for controlling the optical bistability and nonlinear lateral shift in 1DPCs.

scholarly journals Low Threshold, Wide Dynamic Range, Tunable, All-Optical Self-Modulator Based on Fano Resonance and Out-of-Plane Coupling in a Slab Photonic Crystal with a Graphene Layer

2015 ◽  
Vol 2015 ◽  
pp. 1-6
Author(s):  
Reza Asadi ◽  
Zhengbiao Ouyang
Keyword(s):  
Photonic Crystal ◽  
Fano Resonance ◽  
Dynamic Range ◽  
Resonance Effect ◽  
Kerr Nonlinearity ◽  
Optical Modulator ◽  
Wide Dynamic Range ◽  
One Dimensional ◽  
All Optical ◽  
Low Threshold

We demonstrate an all-optical modulator based on self-modulation in a one-dimensional slab photonic crystal (PhC) by using optical Kerr nonlinearity of graphene and Fano resonance effect. It has been shown that the effect of Fano resonance in a one-dimensional slab PhC for intensity enhancement can provide low threshold (~1 MW/cm2), high frequency (>1 THz), and wide dynamic range (>3 THz) tunability for the all-optical self-modulator. Such a self-modulator can find applications in optical pulse generations, optical clocks, frequency shifting, and so forth.

Low Threshold Bistable Switching by the Nonlinear One-Dimensional Photonic Crystal

2002 ◽  
Vol 19 (6) ◽  
pp. 798-800 ◽  
Author(s):  
Chen Li-Xue ◽  
Deng Xiao-Xu ◽  
Ding Wei-Qiang ◽  
Zhang Yu ◽  
Liu Shu-Tian
Keyword(s):  
Photonic Crystal ◽  
One Dimensional ◽  
Dimensional Photonic Crystal ◽  
Bistable Switching ◽  
Low Threshold
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