Optical parameters measurements and modelling in biology and some laser applications in life

Abstract

Laser applications in plant selection and their influence on living cells and organisms have been the topic for a long time. Some modern treatments compare the laser influence with nuclear, X-ray and chemical agents for those purposes. A large number of reviewed data are related only to the numbers linked to power or energy density without including the coefficients of reflection or other optical characteristics of living cells or organisms. Due to the fact we measured some of the reflection coefficients for plants of interest as medicaments (in pharmaceutical purposes) in the whole visible range as well as in IR and UV ranges. Knowing those constants and other from references, the discussion will be performed considering the possible comparisons between some experimental data and the results with wheat, corn, tomato. Simultaneously, some laser irradiation would be organized for some plants whose vegetation period could be given some first results. The highest differences could be an irradiation of dry and wet seeds. Nowadays very interesting conclusions are those claiming that laser irradiation changes are more long living than nuclear beams provoked mutations. Some models will be discussed.