Parameter Multiplexing-Based Terahertz Enhanced Absorption Spectra Using Ultrathin Metal Groove Array

This study demonstrates the enhancement of terahertz absorption spectra in bio-molecular materials by utilizing a metal groove array in geometry parameters multiplexing and the relationship between the enhancement characteristics and the thickness of the sample as well as the number of structural grooves. The results indicate that the absorption enhancement factor for a 0.1- μm-thick lactose sample is approximately 120 times. This design offers a better method for detecting bio-molecular materials.
Source: Plasmonics - Category: Biomedical Science Source Type: research