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Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
Published on: July 21, 2018
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Strongly interacting dipolar-polaritons
Itamar Rosenberg1, Dror Liran1, Yotam Mazuz-Harpaz1
1Racah Institute of Physics, The Hebrew University of Jerusalem, Jerusalem 91904, Israel.
Science Advances
|October 23, 2018
Summary
We demonstrate electrically polarized exciton-polaritons, or dipolaritons, with significantly enhanced interaction strength. This breakthrough enables tunable, strong interactions for advanced quantum technologies.
Area of Science:
- Quantum physics
- Condensed matter physics
- Optoelectronics
Background:
- Exciton-polaritons are hybrid light-matter quasiparticles formed from photons and electronic excitations.
- Controlling exciton-polariton interactions is crucial for developing quantum devices.
- Existing methods offer limited control over interaction strength and tunability.
Purpose of the Study:
- To demonstrate a novel system of electrically polarized exciton-polaritons (dipolaritons).
- To investigate the enhancement of polariton-polariton interaction strength in these dipolaritons.
- To explore the tunability and control of these enhanced interactions.
Main Methods:
- Creation of optically guided exciton-polaritons.
- Application of an external electric field for electrical polarization.
- Measurement of polariton-polariton interaction strength under varying electric fields.
Main Results:
- Achieved up to 200-fold enhancement in polariton-polariton interaction strength compared to unpolarized polaritons.
- Demonstrated on/off switching and wide-range tuning of interaction strength via electric field.
- Observed very long propagation distances for these guided dipolaritons.
Conclusions:
- Electrically polarized dipolaritons offer significantly enhanced and tunable interactions.
- This system provides a powerful platform for quantum simulation and quantum circuitry.
- The findings open new avenues for exploring topological states and fundamental physics of polaritons.
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