What is it about?

We have developed a numerical model describing the optical and thermal behavior of optical tissue phantoms upon laser irradiation. According to our previous studies, the phantoms can be used as substitute of real skin from the optical, as well as thermal point of view. However, the thermal parameters are not entirely similar to those of real tissues thus there is a need to develop mathematical model, describing the thermal and optical response of such materials. This will facilitate the correction factors, which would be invaluable in translation between measurements on skin phantom to real tissues, and gave a good representation of a real case application. Here, we present the model dependent on the data of our optical phantoms fabricated and measured in our previous preliminary study. The ambiguity between the modeling and the thermal measurements depend on lack of accurate knowledge of material's thermal properties and some exact parameters of the laser beam. Those parameters were varied in the simulation, to provide an overview of possible parameters' ranges and the magnitude of thermal response.

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Why is it important?

The model dependent on the data of our optical phantoms fabricated and measured in our previous preliminary study is presented.

Perspectives

The ambiguity between the modeling and the thermal measurements depend on lack of accurate knowledge of material's thermal properties and some exact parameters of the laser beam. The suggested method provides an overview of possible parameters' ranges and the magnitude of thermal response.

Professor Alexander N Yakunin
Institute of Precision Mechanics and Control

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This page is a summary of: Model of optical phantoms thermal response upon irradiation with 975 nm dermatological laser, April 2018, SPIE,
DOI: 10.1117/12.2317566.
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