Back to Search
Start Over
Coherent exciton-surface-plasmon-polariton interaction in hybrid metal-semiconductor nanostructures.
- Source :
-
Physical review letters [Phys Rev Lett] 2008 Sep 12; Vol. 101 (11), pp. 116801. Date of Electronic Publication: 2008 Sep 08. - Publication Year :
- 2008
-
Abstract
- We report measurements of a coherent coupling between surface plasmon polaritons (SPP) and quantum well excitons in a hybrid metal-semiconductor nanostructure. The hybrid structure is designed to optimize the radiative exciton-SPP interaction which is probed by low-temperature, angle-resolved, far-field reflectivity spectroscopy. As a result of the coupling, a significant shift of approximately 7 meV and an increase in broadening by approximately 4 meV of the quantum well exciton resonance are observed. The experiments are corroborated by a phenomenological coupled-oscillator model predicting coupling strengths as large as 50 meV in structures with optimized detunings between the coupled exciton and SPP resonances. Such a strong interaction can, e.g., be used to enhance the luminescence yield of semiconductor quantum structures or to amplify SPP waves.
Details
- Language :
- English
- ISSN :
- 0031-9007
- Volume :
- 101
- Issue :
- 11
- Database :
- MEDLINE
- Journal :
- Physical review letters
- Publication Type :
- Academic Journal
- Accession number :
- 18851308
- Full Text :
- https://doi.org/10.1103/PhysRevLett.101.116801