A terahertz photonic crystal structure for sensing applications

This paper explores the use of a 1-D photonic crystal (PC), with and without a defect layer, for sensing in the THz spectral region. The PC consists of a stack of alternating high and low permittivity materials (BK-7 glass and air). Introducing a liquid or gaseous sample leads to a change in the tra...

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Bibliographic Details
Published inProceedings of the 2012 IEEE International Symposium on Antennas and Propagation pp. 1 - 2
Main Authors Acosta Silveira, L. Cecilia, Hejase, J. A., Chahal, P.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.07.2012
Subjects
Dielectrics
Glass
Inverse problems
Permittivity
Photonic crystals
Sensors
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Summary:This paper explores the use of a 1-D photonic crystal (PC), with and without a defect layer, for sensing in the THz spectral region. The PC consists of a stack of alternating high and low permittivity materials (BK-7 glass and air). Introducing a liquid or gaseous sample leads to a change in the transmission characteristics of the PC. An inverse problem method is used to characterize the dielectric properties of the sample under study. Such a configuration provides high sensitivity while requiring a small sample volume.
ISBN:1467304611
9781467304610
ISSN:1522-3965
1947-1491
DOI:10.1109/APS.2012.6348842