18 April 2006 Periodic transmission lines for terahertz BioMEMS
Author Affiliations +
Abstract
We investigate the way of detecting changes in dielectric function of biological entities in liquid phase such as living cell, neurons and proteins. These studies will be used to extract some biological mechanisms information. On this purpose, we have designed a one dimensional EBG (Electromagnetic BandGap) structure with a defect at terahertz frequencies. It is now well known that such a structure presents a transmission peak in the forbidden band with a high quality factor. Here the defect is a microchannel placed below a transmission line. We will show this BioMEMS in two configurations: (a) with classical transmission lines (CPW or Microstrip) and (b) with original transmission lines. We have recently demonstrated a way to excite a propagating mode (also known as Goubau mode) on a very thin single metal wire transmission line. For this propagating mode, the electromagnetic field is very highly confined around the metallic strip. We will briefly detail the properties of such a line and its excitation. We will then show the variations of the defect mode in the forbidden gap with the variation of the dielectric permittivity of the solution. The designed BioMEMS is in a planar topology with glass and quartz substrates.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Tahsin Akalin, Thomas Dargent, "Periodic transmission lines for terahertz BioMEMS", Proc. SPIE 6182, Photonic Crystal Materials and Devices III (i.e. V), 61822L (18 April 2006); doi: 10.1117/12.663010; https://doi.org/10.1117/12.663010
PROCEEDINGS
9 PAGES


SHARE
RELATED CONTENT

Optical propagation in anisotropic metamaterials
Proceedings of SPIE (February 22 2017)
High-directivity photonic bandgap antenna
Proceedings of SPIE (May 12 2004)
Microspectroscopy with terahertz bioMEMS
Proceedings of SPIE (April 21 2006)
Metamaterial phenomenons via uniform motion
Proceedings of SPIE (May 04 2007)

Back to Top