Simulation of Fluorescence Spectrum Related to Photosynthesis

Abstract

A mathematical study of fluorescence spectrum related to photosynthesis action spectrum was carried out, the calculation of typical photosynthesis spectra on the frequency scale for red and blue light was performed, and the transition of the photosynthesis action spectrum from wavelengths to the frequency scale was carried out; as a result of the inverse Fourier transform, a relaxation curve of the pulse (time) characteristic of fluorescence was numerically obtained. It turned out that the radius vector of the pulse response modulus in polar coordinates made one half turn or half the period of light oscillations in time. It has been found that the optical medium of a plant has a negative volume charge of electrons during relaxation and has inverse properties and properties of coherent radiation. The condition of neutrality of the material environment is not fulfilled. It was revealed that the ratios of variable chlorophyll fluorescence for red and blue light have almost the same value. An analysis of the dependence of the quality factor of the chlorophyll spectrum on frequency showed that the loss of fluorescence energy in blue light significantly exceeds the loss of energy in red light. The proposed method can be used for rapid analysis of photosynthesis intensity. It is also concluded that plants can emit ultra-wideband signals. The relaxation time of chlorophyll fluorescence is shorter than the relaxation time of electron polarization in atoms (molecules). As a result, an inversion of populations is created in the optical medium of chlorophyll, that is, there are more atoms at the upper energy level than at the lower one. Due to this, forced emission and amplification of the light of radiative recombination occurs. In this case, the emission of fluorescence light becomes coherent. All these properties of plants were considered for the first time and were not described in either the domestic or foreign literature.