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Applied Physics Letters / Volume 100 / Issue 6 / PHOTONICS AND OPTOELECTRONICS

Appl. Phys. Lett. 100, 061101 (2012); http://dx.doi.org/10.1063/1.3665180 (3 pages)

Elastomeric silicone substrates for terahertz fishnet metamaterials

I. E. Khodasevych1, C. M. Shah1, S. Sriram1, M. Bhaskaran1, W. Withayachumnankul2,3, B. S. Y. Ung2, H. Lin2, W. S. T. Rowe1, D. Abbott2, and A. Mitchell1,4

1Microplatforms Research Group, School of Electrical and Computer Engineering, RMIT University, GPO Box 2476, Melbourne, VIC 3001, Australia
2School of Electrical & Electronic Engineering, The University of Adelaide, Adelaide, SA 5005, Australia
3Faculty of Engineering, King Mongkut’s Institute of Technology, Ladkrabang, Bangkok 10240, Thailand
4ARC Centre for Ultrahigh bandwidth Devices for Optical Systems (CUDOS), School of Electrical and Computer Engineering, RMIT University, GPO Box 2476, Melbourne, VIC 3001, Australia

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(Received 23 May 2011; accepted 7 November 2011; published online 6 February 2012)

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

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KEYWORDS, PACS, and IPC

Keywords

absorption coefficients, elastomers, flexible electronics, metamaterials, microfabrication, multilayers, refractive index, silicones, terahertz wave spectra

PACS

  • 81.05.Lg

    Polymers and plastics; rubber; synthetic and natural fibers; organometallic and organic materials

  • 42.70.Jk

    Polymers and organics

  • 78.70.Gq

    Microwave and radio-frequency interactions

  • 78.20.Ci

    Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity)

International Patent Classification (IPC)

  • B81C1/00

    Manufacture or treatment of devices or systems in or on a substrate

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3665180

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
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    X. Liu, S. MacNaughton, D. B. Shrekenhamer, H. Tao, S. Selvarasah, A. Totachawattana, R. D. Averitt, M. R. Dokmeci, S. Sonkusale, and W. J. Padilla, Appl. Phys. Lett. 96, 011906 (2010)APPLAB000096000001011906000001.

    J. B. Pendry, Phys. Rev. Lett. 85, 18 (2000).

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    D. R. Smith, S. Schultz, P. Markos, and C. M. Soukoulis, Phys. Rev. B 65, 195104 (2002).


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