Abstract

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Highlights

  • The facts have shown that the theories in physics, chemistry, and mathematics are bonded together in the laser invention

  • Since the carbon dioxide laser operates in the far infrared spectral region, it can be categorized as a non-ionizing radiation which has lower energy levels and longer wavelength

  • This paper studied the laser effects on skin melanin

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Summary

Introduction

The facts have shown that the theories in physics, chemistry, and mathematics are bonded together in the laser invention. Different wavelength of lasers will give the different effect on the target tissue In such medical application, the laser is ordinarily used for treatment or therapy purpose such as cancer or tumor treatment. Lasers can be used in two ways to treat cancer either by shrinking or destroying a tumor with heat, or by activating a chemical that destroys cancer cells [Parks, J. et al (2002)]. The CO2 laser emits spectral energy in the far infra red portion of the electromagnetic spectrum at “10,600 nm” At this wavelength, energy is heavily absorbed by water, which is the primary constituent and chromophore of cells in living tissue.

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