Resonant plasmon-stimulated nonlinear absorption in three-level systems.

A. Zasedatelev, T. Dubinina, V. Krasovskii, O. Suprunova, L. Tomilova, A. Chistyakov

Research output: Contribution to journalConference articlepeer-review

4 Citations (Scopus)

Abstract

Mechanisms of resonant nonlinear absorption in the hybrid exciton-plasmon systems based on gold nanoparticles and macroheterocyclical compounds are presented. We used novel substituted subphthalocyanines (SubPc) with 14 π-electronic system as powerful excitonic 3 - level systems, and 50 nm gold nanoparticles (AuNp) as plasmonic structures. We succeeded to define mechanisms of resonant nonlinearities and to show that local field factor (LFF) and Purcell factor (PF) lead to dramatic enhancement in SubPc nonlinearity. We suggest a theoretical model which describes exciton-plasmon interaction of porphyrin/phthalocyanine related compounds with gold nanoparticles in the resonant high power laser field.

Original languageEnglish
Article number012049
JournalJournal of Physics: Conference Series
Volume643
Issue number1
DOIs
Publication statusPublished - 2 Nov 2015
Externally publishedYes
Event2nd International School and Conference Saint-Petersburg OPEN on Optoelectronics, Photonics, Engineering and Nanostructures, SPbOPEN 2015 - St. Petersburg, Russian Federation
Duration: 6 Apr 20158 Apr 2015

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