Full Content is available to subscribers

Subscribe/Learn More  >
Proceedings Article

Terahertz biosensors based on double split ring arrays

[+] Author Affiliations
Christian Debus, Peter Haring Bolívar

Univ. of Siegen (Germany)

Proc. SPIE 6987, Metamaterials III, 69870U (April 23, 2008); doi:10.1117/12.786069
Text Size: A A A
From Conference Volume 6987

  • Metamaterials III
  • Nigel P. Johnson; Ekmel Özbay; Nikolay I. Zheludev; Richard W. Ziolkowski
  • Strasbourg, France | April 07, 2008

abstract

Terahertz biosensors are used for sensing chemical and biochemical material. In order to sense small material quantities, such as DNA strands, sensors with a high sensitivity are needed. Our recent approach applies asymmetric double-split ring resonators (aDSR) in a two-dimensional array. Interaction of resonances within the structure results in a steep flank in the frequency response which is sensitively shifted by small amounts of biomolecules loaded on the sensor surface. Additionally a high E-field concentration connected to the split ring resonances is used to maximize the frequency shift induced by biomaterial covering only a small fraction of the sensor area. Minutes amounts of biomaterial can therefore be detected. In this presentation, the approach is analyzed with numerical simulation. We demonstrate the functionality and optimization of the aDSR array structures, and the capability to detect submicrometer layers of dielectric material with a spatially selective deposition on the resonant structures. A measurement of the complementary structure is presented as proof of principle.

© (2008) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Christian Debus and Peter Haring Bolívar
"Terahertz biosensors based on double split ring arrays", Proc. SPIE 6987, Metamaterials III, 69870U (April 23, 2008); doi:10.1117/12.786069; http://dx.doi.org/10.1117/12.786069


Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).

Figures

Tables

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.