Vol. 21, issue 11, article # 3

Abstract:

eculiarities of the optical field formation inside micron-sized weakly absorbing spherical particle under illumination by a focused Gaussian laser beam with a time regime in the form of a single monopulse and a train of ultrashort laser pulses are considered. It is established that the energy transfer efficiency of incident radiation in a selected high-quality resonance mode of a particle at its illumination by a focused light beam depends greatly on the train interpulse interval and the depth of linear frequency modulation of each pulse. The influence of irradiation geometry of a particle by laser and the pulse number in the train on the time behavior of internal optical field and its peak intensity is investigated.

Keywords:

micron weakly-absorbing spherical particle, Gaussian beam, single monopulse, train of ultrashort laser pulses