Abstract
The aim of the present work was the development of laser systems for ablation of biological tissues with a programmable control over the lasing pulse repetition rate in a wide range. A two-stage laser system consisting of a master oscillator and a power amplifier based on strontium vapor laser has been developed. The operation of the laser system in a single-pulse mode operation, multipulse mode operation, and with a pulse repetition rate up to 20 kHz has been technically implemented. The possibility of a bone tissue ablation with no visible thermal damage is shown.
Highlights
The use of lasers lies at the heart of many technologies
That is, when a laser radiation is absorbed by a biological tissue there is a conversion of the photon energy into the vibrational energy of molecules leading to their destruction, which are the basis for the subsequent photothermal ablation
A laser system consisting of an oscillator and an amplifier based on active elements of a strontium vapor laser (Figure 1), providing the ablation mode of hard biological tissues, has been developed
Summary
The use of lasers lies at the heart of many technologies. The unique properties of laser radiation allow achieving high precision of material processing and small sizes of the treated area. This is relevant for the use of lasers in medicine as well. The use of lasers for ablation allows performing tissue removal without damaging surrounding areas. That is, when a laser radiation is absorbed by a biological tissue there is a conversion of the photon energy into the vibrational energy of molecules leading to their destruction, which are the basis for the subsequent photothermal ablation. The process begins immediately after reaching the required radiation power density
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