scholarly journals High-Contrast Electrooptic Modulation of a Photonic Crystal Nanocavity by Electrical Gating of Graphene

Nano Letters ◽  
2013 ◽  
Vol 13 (2) ◽  
pp. 691-696 ◽  
Author(s):  
Xuetao Gan ◽  
Ren-Jye Shiue ◽  
Yuanda Gao ◽  
Kin Fai Mak ◽  
Xinwen Yao ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
High Contrast ◽  
Electrooptic Modulation

scholarly journals All-Optical Ultra-Fast Graphene-Photonic Crystal Switch

Crystals ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 461 ◽  
Author(s):  
Mohammad Reza Jalali Azizpour ◽  
Mohammad Soroosh ◽  
Narges Dalvand ◽  
Yousef Seifi-Kavian
Keyword(s):  
Photonic Crystal ◽  
Integrated Circuits ◽  
Contrast Ratio ◽  
Fast Response ◽  
High Contrast ◽  
Switching Operation ◽  
Optical Integrated Circuits ◽  
All Optical ◽  
The Difference ◽  
Silicon Rods

In this paper, an all-optical photonic crystal-based switch containing a graphene resonant ring has been presented. The structure has been composed of 15 × 15 silicon rods for a fundamental lattice. Then, a resonant ring including 9 thick silicon rods and 24 graphene-SiO2 rods was placed between two waveguides. The thick rods with a radius of 0.41a in the form of a 3 × 3 lattice were placed at the center of the ring. Graphene-SiO2 rods with a radius of 0.2a were assumed around the thick rods. These rods were made of the graphene monolayers which were separated by SiO2 disks. The size of the structure was about 70 µm2 that was more compact than other works. Furthermore, the rise and fall times were obtained by 0.3 ps and 0.4 ps, respectively, which were less than other reports. Besides, the amount of the contrast ratio (the difference between the margin values for logics 1 and 0) for the proposed structure was calculated by about 82%. The correct switching operation, compactness, and ultra-fast response, as well as the high contrast ratio, make the presented switch for optical integrated circuits.

scholarly journals Ultralow-energy and high-contrast all-optical switch involving Fano resonance based on coupled photonic crystal nanocavities

2013 ◽  
Vol 21 (10) ◽  
pp. 11877 ◽  
Author(s):  
Kengo Nozaki ◽  
Akihiko Shinya ◽  
Shinji Matsuo ◽  
Tomonari Sato ◽  
Eiichi Kuramochi ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Fano Resonance ◽  
Optical Switch ◽  
High Contrast ◽  
Ultralow Energy ◽  
All Optical ◽  
All Optical Switch

scholarly journals Surface-emitting mid-infrared quantum cascade lasers with high-contrast photonic crystal resonators

2010 ◽  
Vol 18 (11) ◽  
pp. 11979 ◽  
Author(s):  
Gangyi Xu ◽  
Raffaele Colombelli ◽  
Remy Braive ◽  
Gregoire Beaudoin ◽  
Luc Le Gratiet ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Quantum Cascade Lasers ◽  
High Contrast ◽  
Mid Infrared ◽  
Quantum Cascade ◽  
Cascade Lasers

Low-Power and High-Contrast Nanoscale All-Optical Diodes Via Nanocomposite Photonic Crystal Microcavities

2011 ◽  
Vol 21 (10) ◽  
pp. 1803-1809 ◽  
Author(s):  
Xiaoyong Hu ◽  
Zhiqiang Li ◽  
Jiaxiang Zhang ◽  
Hong Yang ◽  
Qihuang Gong ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Low Power ◽  
High Contrast ◽  
All Optical ◽  
Photonic Crystal Microcavities
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