Back to Search
Start Over
Ultrafast Optical Generation of Coherent Bright and Dark Surface Phonon Polaritons in Nanowires
- Publication Year :
- 2019
-
Abstract
- The coherence of polaritons plays a fundamental role in numerous recent experimental observations, from strong coupling to Bose-Einstein condensation, but accessing the coherence of polaritons is a difficult task due to the high energy of plasmons and excitons. However, surface phonon polaritons offer similar promises at much lower energy. Here, we demonstrate the possibility to use visible ultrafast lasers to generate and time resolve coherent surface phonon polaritons in nanowires. We show that these modes are generated through the ultrafast screening of the surface depletion field. By comparing experiments and FDTD simulations, we show that this method allows the simultaneous generation of dark and bright mode. Our observations open the way to deeper investigations of the role of coherence in the rich polariton physics.
- Subjects :
- Physics
Condensed Matter::Quantum Gases
Condensed Matter - Mesoscale and Nanoscale Physics
Phonon
business.industry
Condensed Matter::Other
Nanowire
FOS: Physical sciences
Physics::Optics
Surface phonon
Atomic and Molecular Physics, and Optics
Electronic, Optical and Magnetic Materials
Electric field
Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
Physics::Atomic and Molecular Clusters
Polariton
Optoelectronics
Electrical and Electronic Engineering
business
Ultrashort pulse
Plasmon
Optics (physics.optics)
Biotechnology
Coherence (physics)
Physics - Optics
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....5a1bbc8f5059da91892517a46f6d67bf