Room-temperature cavity exciton-polariton condensation in perovskite quantum dots
Fuente:
arXiv
Guardado en:
| Autores principales: | , , , , , , , , , , , , , , , |
|---|---|
| Formato: | Preprint |
| Publicado: |
2024
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1866914413841219584 |
|---|---|
| author | Georgakilas, Ioannis Tiede, David Urbonas, Darius Bujalance, Clara Caliò, Laura Mirek, Rafał Oddi, Virginia Tao, Rui Dirin, Dmitry N. Rainò, Gabriele Boehme, Simon C. Galisteo-López, Juan F. Mahrt, Rainer F. Kovalenko, Maksym V. Miguez, Hernán Stöferle, Thilo |
| author_facet | Georgakilas, Ioannis Tiede, David Urbonas, Darius Bujalance, Clara Caliò, Laura Mirek, Rafał Oddi, Virginia Tao, Rui Dirin, Dmitry N. Rainò, Gabriele Boehme, Simon C. Galisteo-López, Juan F. Mahrt, Rainer F. Kovalenko, Maksym V. Miguez, Hernán Stöferle, Thilo |
| contents | The exploitation of the strong light-matter coupling regime and exciton-polariton condensates has emerged as a compelling approach to introduce strong interactions and nonlinearities into numerous photonic applications, ranging from low-threshold topological lasers to ultrafast all-optical logic devices. The use of colloidal semiconductor quantum dots with strong three-dimensional confinement as the active material in these microcavities would be highly advantageous due to their versatile structural and compositional tunability and wet-chemical processability, as well as potentially enhanced, confinement-induced polaritonic interactions. Yet, to date, cavity exciton-polariton condensation has neither been achieved with epitaxial nor with colloidal quantum dots. Here, we demonstrate room-temperature polariton condensation in a thin film of monodisperse, colloidal CsPbBr$_3$ quantum dots placed in a tunable optical resonator with a Gaussian-shaped deformation serving as wavelength-scale potential well for the polaritons. The onset of polariton condensation under pulsed optical excitation is manifested in emission by its characteristic superlinear intensity dependence, reduced linewidth, blueshift, and extended temporal coherence. Our results, based on this highly engineerable class of perovskite materials with unique optical properties, pave the way for the development of polaritonic devices for ultrabright coherent light sources and photonic information processing. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_10667 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Room-temperature cavity exciton-polariton condensation in perovskite quantum dots Georgakilas, Ioannis Tiede, David Urbonas, Darius Bujalance, Clara Caliò, Laura Mirek, Rafał Oddi, Virginia Tao, Rui Dirin, Dmitry N. Rainò, Gabriele Boehme, Simon C. Galisteo-López, Juan F. Mahrt, Rainer F. Kovalenko, Maksym V. Miguez, Hernán Stöferle, Thilo Optics Mesoscale and Nanoscale Physics Other Condensed Matter The exploitation of the strong light-matter coupling regime and exciton-polariton condensates has emerged as a compelling approach to introduce strong interactions and nonlinearities into numerous photonic applications, ranging from low-threshold topological lasers to ultrafast all-optical logic devices. The use of colloidal semiconductor quantum dots with strong three-dimensional confinement as the active material in these microcavities would be highly advantageous due to their versatile structural and compositional tunability and wet-chemical processability, as well as potentially enhanced, confinement-induced polaritonic interactions. Yet, to date, cavity exciton-polariton condensation has neither been achieved with epitaxial nor with colloidal quantum dots. Here, we demonstrate room-temperature polariton condensation in a thin film of monodisperse, colloidal CsPbBr$_3$ quantum dots placed in a tunable optical resonator with a Gaussian-shaped deformation serving as wavelength-scale potential well for the polaritons. The onset of polariton condensation under pulsed optical excitation is manifested in emission by its characteristic superlinear intensity dependence, reduced linewidth, blueshift, and extended temporal coherence. Our results, based on this highly engineerable class of perovskite materials with unique optical properties, pave the way for the development of polaritonic devices for ultrabright coherent light sources and photonic information processing. |
| title | Room-temperature cavity exciton-polariton condensation in perovskite quantum dots |
| topic | Optics Mesoscale and Nanoscale Physics Other Condensed Matter |
| url | https://arxiv.org/abs/2408.10667 |