Device for realizing conversion between space waves and artificial terahertz surface plasmon polariton (SPP) waves
An artificial surface plasmon and space wave technology, applied in electrical components, optical components, waveguide-type devices, etc., can solve the problems of low efficiency, limit the development and application of terahertz SSPP devices, and achieve good application prospects, light weight, Small size effect
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example 1
[0024] Such as figure 2 As shown, on the low-loss flexible Rogers 5880 dielectric substrate, the metal slotted structure is prepared by microlithography, and the unit size is as follows: the horizontal period of the structure p = 75um; the vertical width of the structure is 1412um; the width of the middle slot is 12um; The defects in the structure are 25um wide and 50um high. The corresponding exponential function equation of the first metal sheet is: Where d=1976um, h=812um, s=12um, c=3. . The second metal sheet is symmetrical to the first metal sheet about the x-axis. The simulation results of the CST Microwave Studio show (the monitoring frequency is 0.6THz, and the distance between the monitoring position and the structure surface is 15 microns), when the terahertz plane wave is incident along the horizontal direction, the SPP wave can be effectively excited.
example 2
[0026] Such as image 3 As shown, on the low-loss flexible Rogers 5880 dielectric substrate, the metal slotted structure is prepared by microlithography, and the unit size is as follows: the horizontal period of the structure p = 75um; the vertical width of the structure is 1412um; the width of the middle slot is 12um; The defects in the structure are 25um wide and 50um high. The corresponding exponential function equation of the first metal sheet is: Where d=1976um, h=812um, s=12um, c=3. The second metal sheet is symmetrical to the first metal sheet about the x-axis. The simulation results of CST Microwave Studio show (the monitoring frequency is 0.6THz, and the distance between the monitoring position and the structure surface is 15 microns), when the plane wave is incident along the oblique direction, that is, when the incident surface is in the x-y plane and the electric field has both x and y direction components (incident The angle θ is 45°), the structure can still ...
example 3
[0028] Such as Figure 4 As shown, on the low-loss flexible Rogers 5880 dielectric substrate, the metal slotted structure is prepared by microlithography, and the unit size is as follows: the horizontal period of the structure p = 75um; the vertical width of the structure is 1412um; the width of the middle slot is 12um; The defects in the structure are 25um wide and 50um high. The corresponding exponential function equation of the first metal sheet is: Where d=1976um, h=812um, s=12um, c=3. . The second metal sheet is symmetrical to the first metal sheet about the x-axis. The simulation results of the CST microwave studio show (the monitoring frequency is 0.6THz, and the distance between the monitoring position and the surface of the structure is 15 microns), when the incident surface is on the x-z plane (incident angle φ is 45°), and the electric field is along the y direction, the structure can also Accepts plane waves and converts them to SPP waves.
[0029] It can be ...
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