Retraction notice to all-optical photonic crystal filters in the form of series hexagonal rings for application in advanced optical communication systems IJLEO 136 (2017) 84–88

Optik ◽  
2017 ◽  
Vol 136 ◽  
pp. R1
Author(s):  
Ehsan Najafi Tomraei ◽  
Hassan Rasooli Saghai
2009 ◽  
Vol 129 (4) ◽  
pp. 601-607
Author(s):  
Shubi F. Kaijage ◽  
Yoshinori Namihira ◽  
Nguyen H. Hai ◽  
Feroza Begum ◽  
S. M. Abdur Razzak ◽  
...  

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