Conversion of Optical Radiation by a Microsphere with Nanoinclusions of Metal Sols

摘要

The conversion of optical radiation by dielectric microparticles with nanoinclusions of metal sols is theoretically studied. It is shown that, under resonance conditions, the concentration of nanoparticles inside a spherical microparticle affects the strength and structure of its internal field and influences the lasing conditions inside the microparticle. Two-mode lasing may occur depending on the concentration of nanoparticles due to overlap of the spatial structures of the fields of generated modes.