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Study on the cross-polarization method for extracting internal information of objects

  • Tongshuai Han
  • , Mingfei Yao
  • , Guang Han
  • , Tianpei Wang
  • , Jingying Jiang*
  • , Kexin Xu
  • *Corresponding author for this work
  • Tianjin University
  • Tiangong University
  • Shenzhen Institute of Advanced Technology

Research output: Contribution to journalArticlepeer-review

Abstract

In noninvasive near-infrared (NIR) noncontact measurement, a cross-polarization method is employed to eliminate undesired surface reflection and extract useful internal information. Experiments on various samples (both in vitro and in vivo) at different source-detector separations (SDSs) were conducted to investigate the effectiveness of this method. In conclusion, the cross-polarization method is proved to be effective in eliminating surface reflection as well as conducive to the measurement of objects’ internal information and this method is more suitable for scattering objects with smooth surfaces and complex interiors. Furthermore, a larger SDS can lead to a better measurement effect. This study can be a reference for tissue constituent sensing.

Original languageEnglish
Pages (from-to)433-441
Number of pages9
JournalOptik
Volume180
DOIs
StatePublished - Feb 2019
Externally publishedYes

Keywords

  • Cross-polarization
  • Degree of polarization
  • Extinction rate
  • Noncontact measurement
  • Surface reflection
  • Surface roughness

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