Preface
One of the most important areas of application of laser radiation is biomedical
optics. Here, laser sources are used for diagnosis, therapy, or surgery.
Note that for the development of new methods of laser biomedical diagnostics, a
detailed study of the propagation of light in biological tissues is required, as theoretical studies improve the understanding of the optical measurements, increase
capacity, reliability, and usefulness of optical technologies.
To solve these problems in the first place, the most informative indicators of the
functioning of the organism must be chosen. These indicators are the results of the
analysis of peripheral blood. Peripheral blood provides the complete information on
the status of the human organism. A comprehensive study of the characteristics of
light scattering and absorption can quickly detect intact physiological and morphological changes in the cells due to thermal, chemical, antibiotic treatments, etc.
The choice of the laser beam to study the structure of biological particles is
conditioned by the fact that it does not induce gross pathological changes, and
diagnostics will ensure effective use of all the coherence properties of laser radiation, monochromatic directional.
Note that for laser processing of the biological environment, it is also necessary
to perform a selective thermal influence facility located in the environment. For
these purposes, it is necessary for a selection of optimal spectral, temporal, and
energy characteristics of the laser source.
The main parameter to reach selectivity (choice) is the wavelength of the radiation. If we choose a wavelength of light which is absorbed by the object, but not
absorbed by the surrounding tissues, the selectivity is achieved.
However, such a situation is ideal and cannot always be achievable in practice.
Considerable value is also placed on the duration of treatment, the size of the object,
the depth of its location.
After laser irradiation on biological tissues, factors such as the movement of
blood through the vessels and thermoregulation are need to be considered.
Blood flow can have a significant impact on the result of exposure if it is
dependent on the degree of thermal damage to the tissue, because blood flow may
be an additional and sufficiently effective mechanism for heat removal from the site
v
One of the most important areas of application of laser radiation is biomedical
optics. Here, laser sources are used for diagnosis, therapy, or surgery.
Note that for the development of new methods of laser biomedical diagnostics, a
detailed study of the propagation of light in biological tissues is required, as theoretical studies improve the understanding of the optical measurements, increase
capacity, reliability, and usefulness of optical technologies.
To solve these problems in the first place, the most informative indicators of the
functioning of the organism must be chosen. These indicators are the results of the
analysis of peripheral blood. Peripheral blood provides the complete information on
the status of the human organism. A comprehensive study of the characteristics of
light scattering and absorption can quickly detect intact physiological and morphological changes in the cells due to thermal, chemical, antibiotic treatments, etc.
The choice of the laser beam to study the structure of biological particles is
conditioned by the fact that it does not induce gross pathological changes, and
diagnostics will ensure effective use of all the coherence properties of laser radiation, monochromatic directional.
Note that for laser processing of the biological environment, it is also necessary
to perform a selective thermal influence facility located in the environment. For
these purposes, it is necessary for a selection of optimal spectral, temporal, and
energy characteristics of the laser source.
The main parameter to reach selectivity (choice) is the wavelength of the radiation. If we choose a wavelength of light which is absorbed by the object, but not
absorbed by the surrounding tissues, the selectivity is achieved.
However, such a situation is ideal and cannot always be achievable in practice.
Considerable value is also placed on the duration of treatment, the size of the object,
the depth of its location.
After laser irradiation on biological tissues, factors such as the movement of
blood through the vessels and thermoregulation are need to be considered.
Blood flow can have a significant impact on the result of exposure if it is
dependent on the degree of thermal damage to the tissue, because blood flow may
be an additional and sufficiently effective mechanism for heat removal from the site
v