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Schematics of PC strip waveguides with (a) unit-cell and (b) unit-cell .
The band structures of (a) the PC strip waveguide with unit-cell (b) the PC strip with unit-cell (c) the PC plate along direction with square-lattice hole (, ). The similar polarizations are clustered into the same color.
The displacement vector fields of the PC strip eigenmodes labeled in Fig. 2(b). (a) wave number , frequency . (quasi-, point A at Fig. 2). (b) , (quasi-, point B of Fig. 2). (c) , (quasi-, point C at Fig. 2). (d) , (quasi-, point D at Fig. 2). (e) , (quasi-, point E at Fig. 2). (f) , (quasi-, point F at Fig. 2). The direction and size of cones represent the direction and the magnitude of the displacement vector.
Variation of the total band gap (shaded area) as a function of for the PC strip waveguide composed of unit cell with .
The energy flux transmission spectra of waves propagating through the six-period strip waveguide composing of unit cell with and .
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