Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
The light-matter interaction between plasmonic nanocavity and exciton at the sub-diffraction limit is a central research field in nanophotonics. Here, we demonstrated the vertical distribution of the light-matter interactions at ~1 nm spatial resolution by coupling A excitons of MoS and gap-mode plasmonic nanocavities. Moreover, we observed the significant photoluminescence (PL) enhancement factor reaching up to 2800 times, which is attributed to the Purcell effect and large local density of states in gap-mode plasmonic nanocavities. Meanwhile, the theoretical calculations are well reproduced and support the experimental results.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9325739 | PMC |
| http://dx.doi.org/10.1038/s41377-022-00918-1 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Coherent Dynamics of Molecular Vibrations in Single Plasmonic Nanogaps.
Phys Rev Lett
August 2025
Cavendish Laboratory, NanoPhotonics Centre, Department of Physics, JJ Thompson Avenue, University of Cambridge, Cambridge CB3 0US, United Kingdom.
Coupling with a resonant optical cavity is well known to modify the coherence of molecular vibrations. However, in the case of molecules coupled to a plasmonic nanocavity mode, the local mechanisms of vibrational coherence decay remain unclear. Here, the dynamics of a few hundred molecules of nitrothiophenol (NTP) within a single plasmonic nanocavity are studied by sum-frequency generation.
View Article and Find Full Text PDFEnhanced magnetic second-harmonic generation in an ultra-compact plasmonic nanocavity.
Light Sci Appl
September 2025
Department of Materials Science and Engineering, Centre for Functional Photonics, and Hong Kong Branch of National Precious Metals Material Engineering Research Centre, City University of Hong Kong, Hong Kong, China.
Observation of the second-harmonic generation (SHG) from subwavelength metallic structures is often hindered by the interrelations of higher-order multipolar contributions. In particular, the magnetic Lorentz contribution to SHG is often neglected due to the ineffective magnetic field enhancement in electrically resonant structures. Here, we demonstrate a strong Lorentz-driven SHG output at the plasmon-induced magnetic dipolar resonance in inversion-symmetry-broken plasmonic nanocavities.
View Article and Find Full Text PDFA highly efficient ultra-broadband and wide-angle plasmon absorber based on nanocavity arrays for solar harvesting.
Nanoscale
September 2025
College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing 210023, China.
As the demand for renewable energy continues to rise, developing efficient solar energy harvesting technologies has become increasingly important. In this paper, we propose a plasmon absorber utilizing nanocavity arrays to achieve ultra-broadband absorption of solar energy. The results show that the absorber achieves an average absorption rate of 95.
View Article and Find Full Text PDFOptical detection of single sub-15 nm objects using elastic scattering strong coupling.
Nat Commun
August 2025
Faculty of Science and Technology, MESA+ Institute for Nanotechnology, University of Twente, Enschede, The Netherlands.
Metallic nano-objects play crucial roles in diverse fields, including biomedical imaging, nanomedicine, spectroscopy, and photocatalysis. Nano-objects smaller than 15 nm exhibit extremely low scattering cross-sections, posing a significant challenge for optical detection. An approach to enhance optical detection is to exploit nonlinearity of strong coupling regime, especially for elastic scattering, which is universal to all objects.
View Article and Find Full Text PDFOptically pumped polymer nanolasers drive the development of integrated optoelectronic devices. Introduction of surface plasmon into nanolasers can effectively enhance the local electromagnetic field in the optical pumping processes. However, significant quenching effects on organic fluorescence emissions bring the challenge in high-efficient lasing from the distributed feedback (DFB) nano-device loaded with noble metal particles.
View Article and Find Full Text PDF