Targeted Polariton Flow Through Tailored Photonic Defects

Area of Science:

• Quantum physics
• Optics
• Materials science

Background:

• Non-Hermitian open quantum systems offer unique control over light-matter interactions.
• Polariton condensates are promising for functional optical elements due to their tunable properties.

Purpose of the Study:

• To demonstrate the creation of directed polariton currents using localized losses.
• To explore the role of polariton-polariton interactions in this process.
• To show how to tailor condensate decay time via defect coupling.

Main Methods:

• Utilizing a photonic defect by locally reducing the quality factor of a DBR mirror in a microcavity.
• Investigating polariton dynamics and interactions within the condensate.

Main Results:

• Successfully created directed polariton currents towards the introduced defect.
• Showcased the ability to tailor the effective decay time of the polariton condensate.
• Highlighted the influence of polariton-polariton interactions on current generation.

Conclusions:

• Localized losses can effectively direct polariton currents in condensates.
• Non-Hermitian physics provides a powerful framework for designing novel optical elements in polaritonics.
• This approach has significant potential for future photonic device applications.