Use of the concept of "specific power density" for parametrization of low-level laser irradiation

Alexandre Yu. Douplik

doi:10.1117/12.169103

15 February 1994 Use of the concept of "specific power density" for parametrization of low-level laser irradiation

Alexandre Yu. Douplik

Proceedings Volume 2086, Medical Applications of Lasers; (1994) https://doi.org/10.1117/12.169103
Event: Europto Biomedical Optics '93, 1993, Budapest, Hungary

Abstract

The article analyzes a traditional idea on the description of Low Level Laser Irradiation (LLLI) resulting from some isolation (gap) of clinic-biological and optic studies in the sphere of Low Level Laser Medicine. The author uses a conventional parameter `Specific Power Density,' Ps (mW/cm³) connected with both power characteristics of laser and optical properties of irradiated biological subject. The attenuation of the LLLI in biotissue is described with a gradient P(x), where x is a distance to the source. If the distributed intensity of LLLI is integrated over the volume V so one can obtain integral intensity SP(mW). Let us divide integral intensity by the volume: SP/V. This very ratio is Specific Power Density P (mW/cm³). The calculation of energetic LLLI parameters of whole blood intravenously is submitted as an example of use of the Specific Power Density.

Citation Download Citation

Alexandre Yu. Douplik "Use of the concept of "specific power density" for parametrization of low-level laser irradiation", Proc. SPIE 2086, Medical Applications of Lasers, (15 February 1994); https://doi.org/10.1117/12.169103

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