4:30 PM - 4:45 PM
▲ [16p-A202-13] Terahertz integrated sensors based on metal-insulator composite woven-wire meshes
Keywords:Terahertz Optics, Terahertz sensing, Periodic metal structure
In this presentation, a scheme of metal–insulator composite woven-wire mesh (MCWM) is experimentally developed based on plastic woven-wire mesh with one side of metallic coating. The plastic woven-wire mesh is formed by crossly interweaving polyethylene terephthalate (PET) polymeric wires, where the parameters of D, W and L are respectively 120 um, 249 um and 738 um. For the application of THz integrated sensor, the polymer thin film made of polyacrylic acid (PAA) is integrated with an MCWM to absorb target analytes. The PAA absorber is prepared from the 1 wt% PAA aqueous solution to attach an MCWM via a drop-and-dry process. Various densities of PAA thin films can approximately linear shift transmission spectra of MCWM spectral dip. The first order of MCWM spectral dip represents THz wave resonance to cover structural unit aperture and it is applicable in the experiments for sensing lactose and PE sphere particles, which mimic biological cells.