Dual-color single-mode lasing in axially coupled organic nanowire resonators.

ABSTRACT: Miniaturized lasers with multicolor output and high spectral purity are of crucial importance for yielding more compact and more versatile photonic devices. However, multicolor lasers usually operate in multimode, which largely restricts their practical applications due to the lack of an effective mode selection mechanism that is simultaneously applicable to multiple wavebands. We propose a mutual mode selection strategy to realize dual-color single-mode lasing in axially coupled cavities constructed from two distinct organic self-assembled single-crystal nanowires. The unique mode selection mechanism in the heterogeneously coupled nanowires was elucidated experimentally and theoretically. With each individual nanowire functioning as both the laser source and the mode filter for the other

SUBMITTER: Zhang C 

PROVIDER: S-EPMC5524526 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature