In this work, we characterize the electromagnetic properties of polydimethylsiloxane (PDMS) and use this as a free-standing substrate for the realization of flexible fishnet metamaterials at terahertz frequencies. Across the 0.2-2.5 THz band, the refractive index and absorption coefficient of PDMS are estimated as 1.55 and 0-22 cm -1, respectively. Electromagnetic modeling, multi-layer flexible electronics microfabrication, and terahertz time-domain spectroscopy are used in the design, fabrication, and characterization of the metamaterials, respectively. The properties of PDMS add a degree of freedom to terahertz metamaterials, with the potential for tuning by elastic deformation or integrated microfluidics. © 2012 American Institute of Physics.
CITATION STYLE
Khodasevych, I. E., Shah, C. M., Sriram, S., Bhaskaran, M., Withayachumnankul, W., Ung, B. S. Y., … Mitchell, A. (2012). Elastomeric silicone substrates for terahertz fishnet metamaterials. Applied Physics Letters, 100(6). https://doi.org/10.1063/1.3665180
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