Investigation of the Influence of Thermally Induced Methemoglobin on the Human Skin Optical Reflection

Andrey V. Belikov
ITMO University, Saint Petersburg, Russia
Pavlov First Saint Petersburg State Medical University, Russia

Viktor Yu. Chuchin (Login required)
ITMO University, Saint Petersburg, Russia
NPP VOLO LLC, Saint-Petersburg, Russia


Paper #9052 received 7 Jan 2024; revised manuscript received 3 Mar 2024; accepted for publication 25 Mar 2024; published online 3 May 2024.

DOI: 10.18287/JBPE24.10.020303

Abstract

The relationship between the reflection coefficient of human skin at a wavelength of 980 nm and its temperature during exposure to laser radiation of the same wavelength has been measured for the first time in an in vivo experiment. An interpretation of the experimentally obtained results is provided within the framework of a seven-layer optical computer model of human skin. Association of the observed alteration in the reflection coefficient at the wavelength of 980 nm to the conversion of skin blood hemoglobin into methemoglobin is demonstrated. The results of this research may find application in the development of novel laser systems with feedback mechanisms and technologies for treating dermatological conditions, including telangiectasias.

Keywords

diode laser; reflection; human skin; computer model; heating; temperature

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References


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