Millimeter wave and terahertz dielectric probe microfluidic sensors

Author

Chahal, Premjeet ; Hejase, Jose A. ; Shane, Steve ; Park, Kyoung Y. ; Kaur, Amardeep ; Byford, Jennifer

Author_Institution

Dept. of Electr. & Comput. Eng., Michigan State Univ., East Lansing, MI, USA

fYear

2014

fDate

14-19 Sept. 2014

Firstpage

1

Lastpage

2

Abstract

This paper reports the design, fabrication, and characterization of a suite of dielectric probes for near-field and evanescent microfluidic sensing applications. Four different probe designs are studied. These structures are made from cylindrical alumina dielectric rods, and were integrated with microfluidic channels. Mixtures of two different solvents were used to characterize the probes. The sensitivity of the probes is measured under a continuous flow of liquids in the microfluidic channel. In comparison to evanescent wave probes, an improvement of up to 25X in sensitivity is obtained using the new probes.

Keywords

dielectric devices; microfabrication; microfluidics; microsensors; millimetre wave detectors; cylindrical alumina dielectric rods; dielectric probes; evanescent microfluidic sensing; evanescent wave probes; microfluidic channels; millimeter wave dielectric probe microfluidic sensors; near-field microfluidic sensing; probe designs; solvents; terahertz dielectric probe microfluidic sensors; Dielectric measurement; Dielectrics; Liquids; Microfluidics; Probes; Sensitivity; Sensors;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 39th International Conference on

Conference_Location

Tucson, AZ

Type

conf

DOI

10.1109/IRMMW-THz.2014.6956055

Filename

6956055