Encapsulated photonic crystals for high efficiency nanolasers

2005 ◽  
Author(s):  
Weidong Zhou
Keyword(s):  
Photonic Crystals ◽  
High Efficiency

Optical Nano-Antennas for Energy Harvesting

2015 ◽  
pp. 26-62 ◽  
Author(s):  
Salah Obayya ◽  
Nihal Fayez Fahmy Areed ◽  
Mohamed Farhat O. Hameed ◽  
Mohamed Hussein Abdelrazik
Keyword(s):  
Solar Cells ◽  
Energy Harvesting ◽  
Solar Energy ◽  
Photonic Crystals ◽  
High Efficiency ◽  
Low Cost ◽  
Harvesting Efficiency ◽  
And Performance ◽  
Nano Wires ◽  
Nano Antennas

The solar energy is able to supply humanity energy for almost another 1 billion years. Optical nano-antennas (ONAs) are an attractive technology for high efficiency, and low-cost solar cells. These devices can be classified to semiconductor nano-wires and metallic nano-antenna. Extensive studies have been carried out on ONAs to investigate their ability to harvest solar energy. Inspired by these studies, the scope of the chapter is to highlight the latest designs of the two main types of ONAs. The metallic nano-antennas are discussed based on the following points: plasmon, modeling, and performance of antenna designs using different configurations and materials. Moreover, the semiconductor nano-wires are studied thoroughly in terms of photonic crystals, antenna design with different patterns, nano-wire forms and materials. Also, the applications of ONAs and their fabrication aspects such as diode challenges are presented in detail. Finally, three novel designs of ONAs are presented and numerically simulated to maximize the harvesting efficiency.

High-Efficiency Bistable Switching Based on One-Dimensional Photonic Crystals with Single-Negative Materials

2008 ◽  
Vol 25 (8) ◽  
pp. 2900-2903 ◽  
Author(s):  
Du Gui-Qiang ◽  
Jiang Hai-tao ◽  
Li Hong -Qiang ◽  
Zhang Ye-Wen ◽  
Chen Hong
Keyword(s):  
Photonic Crystals ◽  
High Efficiency ◽  
One Dimensional ◽  
Bistable Switching ◽  
Negative Materials

scholarly journals Self-Assembled Hierarchical Nanostructures for High-Efficiency Porous Photonic Crystals

ACS Nano ◽  
2014 ◽  
Vol 8 (12) ◽  
pp. 12167-12174 ◽  
Author(s):  
Luca Passoni ◽  
Luigino Criante ◽  
Francesco Fumagalli ◽  
Francesco Scotognella ◽  
Guglielmo Lanzani ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
High Efficiency ◽  
Hierarchical Nanostructures ◽  
Self Assembled

Decorative near-infrared transmission filters featuring high-efficiency and angular-insensitivity employing 1D photonic crystals

Nano Research ◽  
2018 ◽  
Vol 12 (3) ◽  
pp. 543-548 ◽  
Author(s):  
Chengang Ji ◽  
Chenying Yang ◽  
Weidong Shen ◽  
Kyu-Tae Lee ◽  
Yueguang Zhang ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Near Infrared ◽  
High Efficiency ◽  
Infrared Transmission ◽  
Transmission Filters

scholarly journals Magneto-Optical Isolator Based on Ultra-Wideband Photonic Crystals Waveguide for 5G Communication System

Crystals ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 570 ◽  
Author(s):  
Yong Wang ◽  
Biaogang Xu ◽  
Dengguo Zhang ◽  
Shixiang Xu ◽  
Zheng Dong ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Communication Systems ◽  
High Efficiency ◽  
Three Dimensional ◽  
Transmission Efficiency ◽  
Ultra Wideband ◽  
Wave Band ◽  
Optical Isolator ◽  
Millimeter Wave Band ◽  
5G Communication

This paper presents a novel magneto-optical isolator based on an ultra-wideband and high efficiency photonic crystals (PCs) waveguide and gyromagnetic ferrites. The three-dimensional numerical simulation finds that the photonic crystals waveguide’s (PCW) transmission efficiency rises with its height and width. The corresponding experiments are performed by using a triangular lattice Al2O3 dielectric posts array in 5G millimeter wave band. The measured transmission efficiency is up to 90.78% for the optimal PCs waveguide structure, which has ultra-wide operating bandwidth from 23.45 to 31.25 GHz. The magneto-optical isolator is designed by inserting two rectangular gyromagnetic ferrites into the PCs waveguide. Due to the contrast between the effective permeability of the left and right circular polarization waves passing through the magnetized ferrite sheets, the ferromagnetic resonance absorption of the forward and reverse waves is different. By using finite element method, the isolation is optimized to be 49.49 dB for the isolator and its relative bandwidth reaches 8.85%. The high isolation, broadband, and easy integration indicate that our designed magneto-optical isolator has significant advantage in 5G communication systems.

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