Novel Elements of Terahertz Optics Based on Artificial Opal

Author(s):  
V. E. Ulitko ◽  
A. K. Zotov ◽  
V. M. Masalov ◽  
G. A. Emelchenko ◽  
G. M. Katyba ◽  
...  
Author(s):  
Daniel Headland ◽  
Withawat Withayachumnankul ◽  
Michael Webb ◽  
Heike Ebendorff-Heidepriem ◽  
Andre Luiten ◽  
...  
Keyword(s):  

Author(s):  
V. S. Pavelyev ◽  
S. N. Khonina ◽  
S. A. Degtyarev ◽  
K. N. Tukmakov ◽  
A. S. Reshetnikov ◽  
...  

2003 ◽  
Vol 52 (5) ◽  
pp. 1302
Author(s):  
Li Ming-Hai ◽  
Ma Yi ◽  
Xu Ling ◽  
Zhang Yu ◽  
Ma Fei ◽  
...  

Author(s):  
J Anthony Murphy ◽  
Créidhe O’Sullivan
Keyword(s):  

2018 ◽  
Vol 178 ◽  
pp. 04004 ◽  
Author(s):  
Daniela Ionescu ◽  
Gabriela Apreotesei

Photonic metamaterials consisting of artificial opal with magnetic inclusions were considered, used in controllable microwave electronic devices. The analyzed structures consist of matrices of SiO2 nanospheres (diameter 200 - 400 nm) with included clusters of ferrite spinels (MnxCo0.6-xZn0.4Fe2O4, NixCo0.6-xZn0.4Fe2O4, LaxCo0.6-xZn0.4Fe2O4, NdxCo0.6-xZn0.4Fe2O4) in interspherical nanospacing (4 ÷ 7% concentration). The ellipsoidal clusters are polycrystalline, with spatial dimensions of 20 – 30 nm and grains of 5 – 12 nm. A controlled wave absorption was obtained in these high inductivity structures. Evolution of the wave attenuation coefficient, α[dB/m], in function of the applied magnetic field and particle inclusion size, for different content of the magnetic ions in the ferrite inclusion, have been determined at frequencies around the samples ferromagnetic resonance, by structural simulation. The test configuration was: sample inside the rectangular waveguide, mode TE10, in the frequency range 24 ÷ 40 GHz. The polarizing magnetic field for the ferrites was tested in the range of 0 ÷ 20 kOe and minimized by modifying the structure. The metamaterial design optimization was realized, controllable by different parameters at structure level. The ferromagnetic resonance influence on the control process was pointed out and also the particular results and effects which can be induced by the resonant behavior.


2020 ◽  
Author(s):  
Hassan A. Hafez Eid ◽  
Dmitry Turchinovich
Keyword(s):  

2019 ◽  
Vol 7 (15) ◽  
pp. 1900236 ◽  
Author(s):  
Hichem Guerboukha ◽  
Kathirvel Nallappan ◽  
Yang Cao ◽  
Mohamed Seghilani ◽  
Jose Azaña ◽  
...  
Keyword(s):  
Low Loss ◽  

2002 ◽  
Vol 19 (9) ◽  
pp. 1377-1379 ◽  
Author(s):  
Xu Ling ◽  
Li Ming-Hai ◽  
Zhang Yu ◽  
Ma Yi ◽  
Xu Jun ◽  
...  

2003 ◽  
Vol 75 (23) ◽  
pp. 6422-6429 ◽  
Author(s):  
Eric Erel ◽  
Frédéric Aubriet ◽  
Gisèle Finqueneisel ◽  
Jean-François Muller

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