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Light-sound interconversion in optomechanical Dirac materials
Christian Wurl1, Holger Fehske2
1Institute of Physics, Ernst-Moritz-Arndt University Greifswald, Greifswald, 17489, Germany. wurl@physik.uni-greifswald.de.
Scientific Reports
|August 31, 2017
Summary
We reveal optomechanical Dirac physics in quantum dots, enabling angle-dependent Klein tunneling and sound emission. This system could function as a future photon-phonon translator.
Area of Science:
- Quantum optics
- Condensed matter physics
- Optomechanics
Background:
- Radiation pressure couples photons and phonons.
- Quantum dots on honeycomb lattices exhibit unique electronic properties.
Purpose of the Study:
- Investigate optomechanical Dirac physics.
- Analyze photon-phonon scattering and conversion.
- Explore potential applications in quantum circuitry.
Main Methods:
- Theoretical analysis of coupled photon-phonon systems.
- Modeling quantum dots on honeycomb optomechanical arrays.
- Simulating scattering and tunneling phenomena.
Main Results:
- Demonstrated emergence of optomechanical Dirac physics.
- Proved formation of polaritonic quasi-bound states.
- Observed angle-dependent Klein tunneling and sound emission.
- Showcased switching off forward scattering via Fano resonance.
Conclusions:
- The system exhibits novel optomechanical phenomena.
- Tunable Fano resonance allows control over light/sound scattering.
- Potential for developing optomechanical translators for quantum circuits.
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