Performance Efficiency of the Polishing of Polymer Optical Materials
Yu. D. Filatov, V. I. Sidorko, A. Y. Boyarintsev, С. В. Ковалев, V. A. Kovalev
Abstract
As a result of studying the mechanism of polishing the polymer optical materials with disperse systems composed of micro- and nanoparticles of polishing powders, it has established that the energy of sludge and wear particles during the resonant transfer of energy from the disperse phase particles of a polishing disperse system to a treated surface and backward is inversely proportional to the spectral separation between them. It has been shown that the energies of sludge and wear particles are decreased during the polishing of polymer materials with a disperse system of nanopowders by 5 time with an increase in the spectral separation from 27 to 78 cm–1 and from 17 to 24 cm–1, respectively. When polishing is performed with the disperse system of micropowders, their energies are decreased by 2–5 times with an increase in the spectral separation from 8 to 95 cm–1 and from 16 to 57 cm–1. When the spectral separation between a treated material and a polishing powder is decreased, the volumes of sludge and wear particles and, correspondingly, the polishing efficiency and grows alongside with the intensity of wear on the disperse phase particles of the disperse system. It has been found that the polishing efficiency strongly depends on the efficiency of the Forster resonant energy transfer and grows with a decrease in the product of the ratios between the vibration frequencies of molecular moieties on the surface of polishing powder particles and the treated surface and an increase in the ratio between the lifetimes of treated surface clusters and clusters of polishing powder particles in an excited state. It has been shown that the results of theoretical calculations on the performance efficiency of polishing the optical materials coincides with experimental results with a deviation of 1–8%.