Ultrafast Pulse Generation in an Organic Nanoparticle-Array Laser

Research output: Contribution to journalArticle

Details

Original languageEnglish
Pages (from-to)2658-2665
Number of pages8
JournalNano Letters
Volume18
Issue number4
StatePublished - 11 Apr 2018
MoE publication typeA1 Journal article-refereed

Researchers

Research units

Abstract

Nanoscale coherent light sources offer potentially ultrafast modulation speeds, which could be utilized for novel sensors and optical switches. Plasmonic periodic structures combined with organic gain materials have emerged as promising candidates for such nanolasers. Their plasmonic component provides high intensity and ultrafast nanoscale-confined electric fields, while organic gain materials offer fabrication flexibility and a low acquisition cost. Despite reports on lasing in plasmonic arrays, lasing dynamics in these structures have not been experimentally studied yet. Here we demonstrate, for the first time, an organic dye nanoparticle-array laser with more than a 100 GHz modulation bandwidth. We show that the lasing modulation speed can be tuned by the array parameters. Accelerated dynamics is observed for plasmonic lasing modes at the blue side of the dye emission.

ID: 19084751