Exciton-photon coupling in a ZnSe based microcavity fabricated using epitaxial liftoff
| Autor: | J. K. Morrod, Arran Curran, K. A. Prior, Richard J. Warburton, Ajoy K. Kar |
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| Rok vydání: | 2007 |
| Předmět: |
Condensed Matter::Quantum Gases
Materials science Oscillator strength Condensed Matter::Other Exciton Resonance Physics::Optics FOS: Physical sciences Condensed Matter Physics Coupling (probability) Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Molecular physics Electronic Optical and Magnetic Materials Laser linewidth Condensed Matter::Materials Science Materials Chemistry Polariton Electrical and Electronic Engineering Molecular beam Quantum well Physics - Optics Optics (physics.optics) |
| DOI: | 10.48550/arxiv.physics/0703174 |
| Popis: | We report the observation of strong exciton-photon coupling in a ZnSe based microcavity fabricated using epitaxial liftoff. Molecular beam epitaxial grown ZnSe/Zn$_{0.9}$Cd$_{0.1}$Se quantum wells with a one wavelength optical length at the exciton emission were transferred to a SiO$_2$/Ta$_2$O$_5$ mirror with a reflectance of 96% to form finesse matched microcavities. Analysis of our angle resolved transmission spectra reveals key features of the strong coupling regime: anticrossing with a normal mode splitting of $23.6 meV$ at $20 K$; composite evolution of the lower and upper polaritons; and narrowing of the lower polariton linewidth near resonance. The heavy hole exciton oscillator strength per quantum well is also deduced to be $1.78 \times 10^{13} cm^{-2}$. Comment: 3 pages, 3 figures |
| Databáze: | OpenAIRE |
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