AI Article Synopsis
- The study explored how surface-plasmon polaritons (SPPs) influence the bandpass transmission of two-dimensional metal hole arrays (2D-MHAs).
- By varying the thickness of thin dielectric layers on the surfaces of the 2D-MHAs, researchers noted a shift in the transmission peak to lower frequencies as the layer thickness increased.
- This indicates that SPPs significantly affect the transmission properties of 2D-MHAs, particularly in the terahertz frequency range.
Article Abstract
We studied the role of surface-plasmon polaritons (SPPs) in a bandpass transmission property of two-dimensional metal hole arrays (2D-MHAs) by investigating the effect of thin dielectric layers on the 2D-MHA surfaces. We measured zero-order transmission spectra of the 2D-MHAs by changing the thickness of the dielectric layer and found that the bandpass transmission peak shifted to the lower-frequency side with increasing layer thickness, owing to the change of the resonant frequency of the SPP. This result shows that SPPs play a crucial role in the transmission property of 2D-MHAs in the terahertz region.
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| http://dx.doi.org/10.1364/ol.30.001210 | DOI Listing |
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