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Updated: May 22, 2025

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

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Published on: November 30, 2012

Tunable Polariton Rabi Oscillation in Phase-Changing Perovskite Microcavities.

Hyeon-Seo Choi¹, Minjee Ko¹, Taejin Lee¹

¹Department of Physics and Chemistry, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, 42988, South Korea.

Advanced Science (Weinheim, Baden-Wurttemberg, Germany)

|March 17, 2025

Summary

This summary is machine-generated.

Researchers tuned exciton-polariton properties in perovskite microcavities by altering temperature-induced phase transitions. This tuning, linked to ferroelectricity, enhances potential for novel quantum information devices.

Keywords:

ferroicity microcavity phase transition rabi oscillation

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Last Updated: May 22, 2025

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Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films

Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films

Published on: September 8, 2017

Area of Science:

Quantum physics
Materials science
Condensed matter physics

Background:

Exciton-polaritons, quasiparticles of excitons and photons, are key for quantum information devices.
Organic-inorganic hybrid lead halide perovskites offer strong exciton binding and high oscillation strength for cavity quantum electrodynamics.

Purpose of the Study:

To demonstrate tunable Rabi oscillation of exciton-polaritons in lead halide perovskite microcavities.
To investigate the influence of temperature-induced phase transitions on exciton-polariton properties.

Main Methods:

Utilized Fourier plane spectroscopy to probe the dispersion relation of exciton-polaritons.
Investigated temperature-dependent phase transitions (orthorhombic, tetragonal, cubic) in perovskite microcavities.

Main Results:

Achieved tunable Rabi oscillation of exciton-polaritons across perovskite phase transitions.
Observed a ≈20% tuning of Rabi splitting and a ≈44% variation in exciton oscillator strength due to ferroelectricity in the tetragonal phase.

Conclusions:

Ferroelectricity in perovskite phases enables tunable Rabi splitting in exciton-polaritons.
These findings pave the way for novel functionalities in tunable quantum devices using ferroic semiconductors.