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  4. Self-calibrating approach for terahertz thickness measurements of ceramic coatings
 
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2016
Conference Paper
Title

Self-calibrating approach for terahertz thickness measurements of ceramic coatings

Abstract
We present a highly accurate self-calibrating approach to investigate ceramic thermal barrier coatings on metallic substrates using terahertz (THz) technique in reflection geometry. The proposed approach enables the simultaneous determination of the complex refractive index and the coating thickness. Hence, a pre-calibration of the specimen under test is not required.
Author(s)
Krimi, Soufiene
Klier, Jens  
Fraunhofer-Institut für Photonische Mikrosysteme IPMS  
Jonuscheit, Joachim  
Fraunhofer-Institut für Photonische Mikrosysteme IPMS  
Freymann, Georg von  
Fraunhofer-Institut für Physikalische Messtechnik IPM  
Urbansky, Ralph
Beigang, René
Fraunhofer-Institut für Physikalische Messtechnik IPM  
Mainwork
41st International Conference on Infrared, Millimeter, and Terahertz waves, IRMMW-THz 2016  
Conference
International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) 2016  
DOI
10.1109/IRMMW-THz.2016.7758545
Language
English
Fraunhofer-Institut für Physikalische Messtechnik IPM  
Keyword(s)
  • Thickness Measurement

  • Ceramics

  • Terahertz Technique

  • Refractive Index

  • Thermal Barrier Coatings

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