Vol. 30, issue 05, article # 4

Geints Yu. E., Panina E. K., Zemlyanov A. A. Peculiarities of light absorption by an ensemble of microcapsules. // Optika Atmosfery i Okeana. 2017. V. 30. No. 05. P. 383–387. DOI: 10.15372/AOO20170504 [in Russian].
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Specific features of scattering and absorption of laser radiation by an ensemble of two identical microcapsules are theoretically investigated. Each capsule is modelled by a two-layered spherical micron-sized particle consisting of water core and light absorbing polymer shell. By virtue of the numerical electrodynamics technique it is shown that the internal particles structure, as well as their mutual arrangement affect the character of the spatial distribution and amplitude characteristics of the power absorbed. The highest values of the absorbed power density in the microcapsule dimer could be achieved if the particles are displaced relative to each other by a distance of about diameter (strongly absorbing particles) or if the particles are in the geometric shadow of each other (weak absorption).


microcapsules, ensemble of particles, absorption of optical radiation


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