Determination of terahertz-frequency-dependent skin penetration depth based on water sorption-desorption assessment

Borwen You, Ja Yu Lu, Chin Ping Yu, Pei Hwa Wang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Frequency-dependent terahertz (THz) penetration depth is experimentally assessed using a multilayered water-skin model. The skin adsorbed with one water overlayer is considered as the multilayered structure to reflect THz waves and the reflected THz field variation is experimentally observed during a water desorption process. The skin penetration depths can thus be derived using the multilayered water-skin model while considering the measured reflectivity, water dielectric constants, and effective thicknesses of the adsorbed water overlayer. The largest penetration depth is independent of the illumination power of THz wave and in 0.4-0.6 THz at approximately 0.3 mm, covering the possible depths of stratum corneum (SC) and partial epidermis. The distinctly high penetration depth of 0.4-0.6 THz waves is finally confirmed via drying and damaging the SC.

Original languageEnglish
Title of host publication2019 Photonics and Electromagnetics Research Symposium - Fall, PIERS - Fall 2019 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2019-2027
Number of pages9
ISBN (Electronic)9781728153049
DOIs
Publication statusPublished - 2019 Dec
Event2019 Photonics and Electromagnetics Research Symposium - Fall, PIERS - Fall 2019 - Xiamen, China
Duration: 2019 Dec 172019 Dec 20

Publication series

Name2019 Photonics and Electromagnetics Research Symposium - Fall, PIERS - Fall 2019 - Proceedings

Conference

Conference2019 Photonics and Electromagnetics Research Symposium - Fall, PIERS - Fall 2019
CountryChina
CityXiamen
Period19-12-1719-12-20

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics
  • Electronic, Optical and Magnetic Materials
  • Mathematical Physics

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  • Cite this

    You, B., Lu, J. Y., Yu, C. P., & Wang, P. H. (2019). Determination of terahertz-frequency-dependent skin penetration depth based on water sorption-desorption assessment. In 2019 Photonics and Electromagnetics Research Symposium - Fall, PIERS - Fall 2019 - Proceedings (pp. 2019-2027). [9021356] (2019 Photonics and Electromagnetics Research Symposium - Fall, PIERS - Fall 2019 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PIERS-Fall48861.2019.9021356