期刊
ADVANCED PHOTONICS
卷 3, 期 5, 页码 -出版社
SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
DOI: 10.1117/1.AP.3.5.055003
关键词
inorganic perovskite semiconductors; exciton-polaritons; parametric oscillators; four-wave mixing
类别
This study reports a low-threshold on-chip perovskite polariton parametric oscillator, which utilizes polariton-polariton interactions to achieve a signal close to the ground state at room temperature. This polaritonic system combines photons with excitons, exhibiting enhanced optical nonlinearity for highly nonlinear operations with low power consumption.
Optical parametric oscillators (OPOs) have been widely applied in spectroscopy, squeezed light, and correlated photons, as well as quantum information. Conventional OPOs usually suffer from a high power threshold limited by weak high-order nonlinearity in traditional pure photonic systems. Alternatively, polaritonic systems based on hybridized exciton-photon quasi-particles exhibit enhanced optical nonlinearity by dressing photons with excitons, ensuring highly nonlinear operations with low power consumption. We report an on-chip perovskite polariton parametric oscillator with a low threshold. Under the resonant excitation at a range of angles, the signal at the ground state is obtained, emerging from the polariton-polariton interactions at room temperature. Our results advocate a practical way toward integrated nonlinear polaritonic devices with low thresholds.
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