Tunable broadband light emission from graphene
| Autor: | Domenico De Fazio, Stefano Dal Conte, Giancarlo Soavi, Lamberto Duò, Andrea Tomadin, Sandro Mignuzzi, Eva A. A. Pogna, Takashi Taniguchi, Marco Polini, Giulio Cerullo, Kenji Watanabe, Marco Finazzi, Andrea C. Ferrari, Lavinia Ghirardini, Paolo Biagioni, Michele Celebrano |
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| Přispěvatelé: | Ferrari, AC [0000-0003-0907-9993], Celebrano, M [0000-0003-3336-3580], Apollo - University of Cambridge Repository |
| Rok vydání: | 2021 |
| Předmět: |
Photoluminescence
Materials science Astrophysics::High Energy Astrophysical Phenomena Physics::Optics 02 engineering and technology Out of equilibrium electrons 01 natural sciences 7. Clean energy law.invention law 0103 physical sciences Broadband Physics::Atomic and Molecular Clusters General Materials Science Hot photoluminescence 010306 general physics graphene hot photoluminescence out of equilibrium electrons hyperbolic phonons electron-phonon cooling third-harmonic generation Condensed Matter::Other Graphene business.industry Mechanical Engineering Settore FIS/01 - Fisica Sperimentale Nonlinear optics Hyperbolic phonons General Chemistry Electron-phonon cooling Third-harmonic generation 021001 nanoscience & nanotechnology Condensed Matter Physics Optical modulator Mechanics of Materials Optoelectronics Light emission Photonics 0210 nano-technology business Ultrashort pulse |
| Zdroj: | 2D Materials 2D materials 8 (2021): 035026-1–035026-13. doi:10.1088/2053-1583/abf08d info:cnr-pdr/source/autori:Ghirardini L.; Pogna E.A.A.; Soavi G.; Tomadin A.; Biagioni P.; Dal Conte S.; Mignuzzi S.; De Fazio D.; Taniguchi T.; Watanabe K.; Duo L.; Finazzi M.; Polini M.; Ferrari A.C.; Cerullo G.; Celebrano M./titolo:Tunable broadband light emission from graphene/doi:10.1088%2F2053-1583%2Fabf08d/rivista:2D materials/anno:2021/pagina_da:035026-1/pagina_a:035026-13/intervallo_pagine:035026-1–035026-13/volume:8 |
| ISSN: | 2053-1583 |
| Popis: | Graphene is an ideal material for integrated nonlinear optics thanks to its strong light-matter interaction and large nonlinear optical susceptibility. Graphene has been used in optical modulators, saturable absorbers, nonlinear frequency converters, and broadband light emitters. For the latter application, a key requirement is the ability to control and engineer the emission wavelength and bandwidth, as well as the electronic temperature of graphene. Here, we demonstrate that the emission wavelength of graphene$'$ s broadband hot carrier photoluminescence can be tuned by integration on photonic cavities, while thermal management can be achieved by out-of-plane heat transfer to hexagonal boron nitride. Our results pave the way to graphene-based ultrafast broadband light emitters with tunable emission. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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