Highly Effective In-Plane Channel-Drop Filters in Two-Dimensional Heterostructure Photonic-Crystal Slab

2006 ◽  
Vol 45 (8A) ◽  
pp. 6078-6086 ◽  
Author(s):  
Hitomichi Takano ◽  
Bong-Shik Song ◽  
Takashi Asano ◽  
Susumu Noda
2012 ◽  
Vol 26 (26) ◽  
pp. 1250170 ◽  
Author(s):  
TAO CHEN ◽  
CAILONG ZHENG ◽  
JINXING LI

We present a procedure to enhance the transmission efficiency of a photonic crystal slab waveguide bend by introducing an air hole with the same radius at the center of bend and optimizing the positions of three neighboring holes in the corner. The improvement relies only on the method of displacing holes which is technologically preferred to controlling variations in hole size or shape. We employ the effective refractive index approach and two-dimensional plane wave expansion method to analyze the guide modes of the straight waveguide and waveguide bend. The transmission character of bent waveguides is investigated using two-dimensional finite-difference time-domain method. Numerical studies demonstrate that the approximate method of mode analysis is unsuitable to our model. Alternatively, we systematically study the effect of different positions of the holes on the transmission. The optimized bends for the high transmission with broad bandwidth are proposed.


Optik ◽  
2014 ◽  
Vol 125 (24) ◽  
pp. 7203-7206 ◽  
Author(s):  
Cheng Ren ◽  
Ping Wang ◽  
Lifeng Cheng ◽  
Shuai Feng ◽  
Lin Gan ◽  
...  

2013 ◽  
Vol 58 (1) ◽  
pp. 63-67 ◽  
Author(s):  
Cheng Ren ◽  
Feng Kang ◽  
Lin Gan ◽  
Shuai Feng ◽  
LiFeng Cheng ◽  
...  

2014 ◽  
Vol 22 (19) ◽  
pp. 23349 ◽  
Author(s):  
Akihiro Fushimi ◽  
Hideaki Taniyama ◽  
Eiichi Kuramochi ◽  
Masaya Notomi ◽  
Takasumi Tanabe

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