Elastomeric silicone substrates for terahertz fishnet metamaterials

Khodasevych, I. E. and Shah, Charan M. and Sriram, Sharath and Bhaskaran, Madhu and Withayachumnankul, W. and Ung, B. S. Y. and Lin, Hungyen and Rowe, W. S. T. and Abbott, Derek and Mitchell, A (2012) Elastomeric silicone substrates for terahertz fishnet metamaterials. Applied Physics Letters, 100 (6). ISSN 0003-6951

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Abstract

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.

Item Type:
Journal Article
Journal or Publication Title:
Applied Physics Letters
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3101
Subjects:
ID Code:
76831
Deposited By:
Deposited On:
24 Nov 2015 09:48
Refereed?:
Yes
Published?:
Published
Last Modified:
24 Mar 2020 04:32