Photonic crystal with 2-fold rotational symmetry for highly efficient asymmetric transmission

2020 ◽  
Vol 477 ◽  
pp. 126346
Author(s):  
HongMing Fei ◽  
Shuai Yan ◽  
Min Wu ◽  
Han Lin ◽  
YiBiao Yang ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Rotational Symmetry ◽  
Asymmetric Transmission ◽  
Highly Efficient

LiNbO 3 Nonlinear Photonic Crystal with 12-Fold Rotational Symmetry

2013 ◽  
Vol 30 (6) ◽  
pp. 064202
Author(s):  
Bo-Qin Ma ◽  
Ming-Liang Ren ◽  
Dong-Li Ma ◽  
Zhi-Yuan Li
Keyword(s):  
Photonic Crystal ◽  
Rotational Symmetry ◽  
Nonlinear Photonic Crystal

scholarly journals Rotational symmetry of photonic bound states in the continuum

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Liangsheng Li ◽  
Yunzhou Li ◽  
Yong Zhu ◽  
Hongcheng Yin
Keyword(s):  
Photonic Crystal ◽  
Bound States ◽  
Layer Structure ◽  
Rotational Symmetry ◽  
Coupled Model ◽  
Numerical Data ◽  
Life Time ◽  
Layer Structures ◽  
Radiation Decay ◽  
The Continuum

Abstract The bound states in the continuum (BICs) have been investigated by simulating the optical reflectivity of a tri-layer photonic crystal slab. We found that optical BICs can occur in a class of photonic crystal systems with $$c_{1}^{z}$$ c 1 z , $$c_{2}^{z}$$ c 2 z or $$c_{4}^{z}$$ c 4 z rotational symmetries, which are constructed by three identical photonic crystal slabs. By applying the two mode coupled model, we obtain the reflectivity formula to fit the numerical data and evaluate the lifetime of radiation decay. In vicinity of BIC, the lifetime diverges as a power law form, when approaching the BIC point. The infinity life time of $$c_{1}^{z} {\text{ } - \text{ BIC}}$$ c 1 z - BIC in the tri-layer structure indicate that it is a true BIC. The $$c_{1}^{z} {\text{ } - \text{ BIC}}$$ c 1 z - BIC occurs robustly in tri-layer structures, but the resonance frequency of the BICs is dependent on the permittivity of slab, air-hole size and hole shape.

scholarly journals Photochemistry in a soft-glass single-ring hollow-core photonic crystal fibre

The Analyst ◽  
2017 ◽  
Vol 142 (6) ◽  
pp. 925-929 ◽  
Author(s):  
Ana M. Cubillas ◽  
Xin Jiang ◽  
Tijmen G. Euser ◽  
Nicola Taccardi ◽  
Bastian J. M. Etzold ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Liquid Phase ◽  
Hollow Core ◽  
Photonic Crystal Fibre ◽  
Soft Glass ◽  
Highly Efficient ◽  
Single Ring ◽  
Resonant Reflection

A single-ring hollow-core photonic crystal fibre (HC-PCF), guided by anti-resonant reflection, is investigated as a highly efficient and versatile microreactor for liquid-phase photochemistry and catalysis.

Asymmetric transmission of light waves in a photonic crystal waveguide heterostructure with complete bandgaps

2020 ◽  
Vol 59 (14) ◽  
pp. 4416
Author(s):  
Hongming Fei ◽  
Qi Zhang ◽  
Min Wu ◽  
Han Lin ◽  
Xin Liu ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Waveguide ◽  
Asymmetric Transmission ◽  
Light Waves
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