Extended dynamics and lasing of nanoemitters enhanced by dispersing single-walled carbon nanotubes

Abstract

We study the extended dynamics and laser emission of randomly distributed nanoemitters incorporated to a three-dimensional (3D) array of dispersing single-walled carbon nanotubes (SWCNTs) enhanced by plasmon-polariton (PP) excitation. It was found that PP in SWCNTs is excited macroscopically throughout the system if the plasmonic frequency ωp of SWCNTs exceeds the critical value ωc. The laser generation (instability) time of the nanoemitters depends significantly on the ωp in SWCNT. The latter leads to a reconnection of the fields in the SWCNT array and establishing of a strong coupling of the emitter radiation with the PP fields. It is shown that the resonant change in the spatial structure of the field is related with an increase in the excitation of the PP. The corresponding resonance is associated with a strong and narrow peak of the inverse participation ratio of the optical field. This effect may allow the design of new types of active devices of modern nanoelectronics.