Pulsed photothermal radiometry of port-wine-stain lesions

Steven Jacques, J. Stuart Nelson, William H. Wright, Thomas E. Milner

Research output: Contribution to journalArticle

26 Scopus citations

Abstract

Pulsed photothermal radiometry is used to map the heat deposition in human skin after a short laser pulse. It uses an IR (HgCdTe) detector for a rapid noncontact measurement of the skin surface temperature based on the blackbody emission in the 8-12-pum spectrum. The heat deposited by the laser pulse in the superficial epidermis causes an immediate temperature jump, and the heat deposited in basal epidermal melanin and deep port wine stains diffuses to the surface before detection. The time course of the surface temperature T(z = 0, t), indicates the initial spatial distribution of heat, T(z, t = 0), deposited by the laser.

Original languageEnglish (US)
Pages (from-to)2439-2446
Number of pages8
JournalApplied Optics
Volume32
Issue number13
Publication statusPublished - May 1 2010
Externally publishedYes

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Keywords

  • Dermatology
  • IR radiometry
  • Laser
  • Port wine stain

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Jacques, S., Stuart Nelson, J., Wright, W. H., & Milner, T. E. (2010). Pulsed photothermal radiometry of port-wine-stain lesions. Applied Optics, 32(13), 2439-2446.