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Updated: May 2, 2026
09:29
Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation
Published on: September 27, 2011
12.2K
Strongly coupled plasmon-exciton polaritons for photobleaching suppression
Justina Anulytė1, Vytautas Žičkus1,2, Ernesta Bužavaitė-Vertelienė1
1Department of Laser Technologies, Center for Physical Sciences and Technology, Vilnius 10257, Lithuania.
Nanophotonics (Berlin, Germany)
|December 5, 2024
Summary
Strong light-matter interactions significantly reduce photobleaching in plasmonic-excitonic structures. This enhancement in stability is crucial for developing advanced quantum nanophotonic devices.
Area of Science:
- Nanophotonics and Quantum Optics
- Materials Science
Background:
- Strong light-matter interactions are key for novel optical devices.
- Plasmonic-excitonic structures offer potential for low-threshold coherent light sources.
Purpose of the Study:
- Investigate strong coupling effects on fluorescence lifetimes and photobleaching.
- Assess the role of surface plasmon polaritons (SPP) and excitons in Rhodamine 6G (R6G) dye.
Main Methods:
- Fabrication of plasmonic-photonic structures with silver (Ag), gold (Au), and R6G.
- Angle-dependent optical measurements to confirm strong coupling.
- Fluorescence Lifetime Imaging Microscopy (FLIM) to quantify photobleaching.
Main Results:
- Observed Rabi splitting of ~90 meV, confirming strong coupling.
- Demonstrated significant reduction in photobleaching for coupled structures.
- Showcased stabilization of fluorescence intensity.
Conclusions:
- Strong light-matter interactions are vital for mitigating photobleaching.
- Plasmonic-excitonic coupling enhances the stability of fluorescent materials.
- Potential for developing robust quantum nanophotonic devices.
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