Vol. 12

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Effective Plasma Frequency for Two- Dimensional Metallic Photonic Crystals

By Khee Lam Low, Mohd Zubir Mat Jafri, and Sohail A. Khan
Progress In Electromagnetics Research M, Vol. 12, 67-79, 2010


Generalized band structure equation for photonic crystals which containing dielectric rods in metals medium was derived by using the plane wave expansion method. From the band structure, we can study band gap of photonic crystals in both E and H polarizations. Since metals are frequency-dependant materials, modification needs to be done on the plane wave expansion equation to calculate the metallic photonic crystals containing dielectric constant rods. To ease the calculation, simple Drude model for metals are used. In this model, the equation is without damping constant. We have plotted the band structure for photonic crystals in metals medium. Then, we studied the ffective plasma frequency of the structure from the band graph in E polarization mode (TM). We found that effective plasma frequency can be tailored as we want. Detailed results are presented with different sizes of radius. Comparison is made for different background materials.


Khee Lam Low, Mohd Zubir Mat Jafri, and Sohail A. Khan, "Effective Plasma Frequency for Two- Dimensional Metallic Photonic Crystals," Progress In Electromagnetics Research M, Vol. 12, 67-79, 2010.


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