Polariton Bose–Einstein condensate from a bound state in the continuum

Ardizzone, Vincenzo; Riminucci, Fabrizio; Zanotti, Simone; Gianfrate, Antonio; Suárez-Forero, D. G.; Todisco, Francesco; Giorgi, Milena De; Trypogeorgos, D.; Gigli, Giuseppe; Nguyen, Hai Son; Baldwin, K. W.; Pfeiffer, L. N.; Ballarini, Dario; Gerace, Dario; Sanvitto, D.

doi:10.1038/s41586-022-04583-7

Cited by 105 publications

(76 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The significant excitonic fractions of TE and TM polaritons in their LPBs are expected to facilitate polariton relaxation into lower energy states, which may eventually lead to condensation and inversionless lasing. 1,12,41,42 Strong coupling of photonic BICs and excitonic resonances is also manifested by the polaritonic character of photoluminescence and electroluminescence properties of the perovskite metatransistor (Fig. 3).…”

Section: Electrically Driven Polariton Bics In Perovskite Light-emitt...mentioning

confidence: 99%

“…The hybrid nature equips exciton-polaritons with extremely small effective mass, strong nonlinearities and fast relaxation, 1,2 properties that make them a unique platform for fundamental studies such as Bose-Einstein condensation and superfluidity, as well as for the realization of optoelectronic devices such as quantum simulators, neuromorphic computing and inversionless lasers. [3][4][5][6][7][8][9][10][11][12] While electrically injected polaritons could enable the realization of electrically pumped polariton lasers, polariton circuits and high-speed communication systems, so far polaritonic devices have mostly been driven by optical excitation.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Electrically Pumped Polarized Exciton-Polaritons in a Halide Perovskite Microcavity

Wang¹,

Zang²,

Gao³

et al. 2022

Nano Lett.

View full text Add to dashboard Cite

Achieving electrical injection of exciton-polaritons, half-light, half-matter quasiparticles arising from the strong coupling between photonic and excitonic resonances, is a crucial milestone to scale up polaritonic devices such as optical computers, quantum simulators and inversionless lasers. Here we present a new approach to achieve strong coupling between electrically injected excitons and photonic bound states in the continuum of a dielectric metasurface monolithically patterned in the channel of a light-emitting transistor. Exciton-polaritons are generated by coupling electrically injected excitons in the gate-induced transport channel with a Bloch mode of the metasurface, and decay into photons emitted from the top surface of the transistor. Thanks to the high-finesse of the metasurface cavity, we achieve a large Rabi splitting of ~200 meV and more than 50-fold enhancement of the polaritonic emission over the intrinsic excitonic emission of the perovskite film. Moreover, we show that the directionality of polaritonic electroluminescence can be dynamically tuned by varying the source-drain bias which controls the radiative recombination zone of the excitons. We argue that this approach provides a new platform to study strong light-matter interaction in dispersion engineered photonic cavities under electrical injection, and paves the way to solution-processed electrically pumped polariton lasers.

show abstract

Section: Electrically Driven Polariton Bics In Perovskite Light-emitt...mentioning

confidence: 99%

mentioning

confidence: 99%

Electrically Pumped Polarized Exciton-Polaritons in a Halide Perovskite Microcavity

Wang¹,

Zang²,

Gao³

et al. 2022

Nano Lett.

View full text Add to dashboard Cite

show abstract

“…polariton BEC from a bound state in the continuum is also realized at low temperatures [309] . By utilizing circular patterns and symmetry-broken triangular patterns, they observed polarization vortices in momentum space and circularly polarized eigenstates, which leads to a large degree of circular polarization of ∼0.835 and exhibits a promising route for active nanophotonic devices.…”

Section: Polaritons and Condensates In Perovskite Latticesmentioning

confidence: 99%

Microcavity exciton polaritons at room temperature

Ghosh

Zhao

et al. 2022

Photonics Insights

View full text Add to dashboard Cite

The quest for realizing novel fundamental physical effects and practical applications in ambient conditions has led to tremendous interest in microcavity exciton polaritons working in the strong coupling regime at room temperature. In the past few decades, a wide range of novel semiconductor systems supporting robust exciton polaritons have emerged, which has led to the realization of various fascinating phenomena and practical applications. This paper aims to review recent theoretical and experimental developments of exciton polaritons operating at room temperature, and includes a comprehensive theoretical background, descriptions of intriguing phenomena observed in various physical systems, as well as accounts of optoelectronic applications. Specifically, an in-depth review of physical systems achieving room temperature exciton polaritons will be presented, including the early development of ZnO and GaN microcavities and other emerging systems such as organics, halide perovskite semiconductors, carbon nanotubes, and transition metal dichalcogenides. Finally, a perspective of outlooking future developments will be elaborated.

show abstract

“…Alternatively, by adding gain, this value can also increase at second-order EPs [38]. Although increasing the gain would inevitably increase γ nr , recent work shows that it is possible to achieve high gain with low loss by utilizing hybrid light-matter polaritonic modes that arise from the strong-coupling regime between excitons of quantum wells and photons in photonic crystal [54].…”

mentioning

confidence: 99%