Observation of 2D Semiconductor Dark Exciton Lifetime Using Two-photon Ultrafast Spectroscopy
| Autor: | Alex Hayat, Dmitry Panna, Jayakrishna Khatei, Leonid Rybak, Hadar Steinberg, Krishna Balasubramanian |
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| Rok vydání: | 2018 |
| Předmět: |
Condensed Matter::Quantum Gases
education.field_of_study Materials science Condensed Matter::Other business.industry Exciton Population Resolution (electron density) Astrophysics::Cosmology and Extragalactic Astrophysics Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Photon counting Condensed Matter::Materials Science Semiconductor Femtosecond Atomic physics education Spectroscopy business Ultrashort pulse |
| Zdroj: | Advanced Photonics 2018 (BGPP, IPR, NP, NOMA, Sensors, Networks, SPPCom, SOF). |
| DOI: | 10.1364/np.2018.npm3c.7 |
| Popis: | Using two-photon pump-probe on MoS2 we excite directly dark-excitons and probe bright-excitonic population with femtosecond resolution. Non-monotonic density changes in bright-exciton population determine directly dark-exciton lifetime in monolayers. |
| Databáze: | OpenAIRE |
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