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Room Temperature Terahertz Electroabsorption Modulation by Excitons in Monolayer Transition Metal Dichalcogenides
dc.contributor.author | Shi, Jiaojian | |
dc.contributor.author | Baldini, Edoardo | |
dc.contributor.author | Latini, Simone | |
dc.contributor.author | Sato, Shunsuke A | |
dc.contributor.author | Zhang, Yaqing | |
dc.contributor.author | Pein, Brandt C | |
dc.contributor.author | Shen, Pin-Chun | |
dc.contributor.author | Kong, Jing | |
dc.contributor.author | Rubio, Angel | |
dc.contributor.author | Gedik, Nuh | |
dc.contributor.author | Nelson, Keith A | |
dc.date.accessioned | 2021-09-20T18:22:54Z | |
dc.date.available | 2021-09-20T18:22:54Z | |
dc.identifier.uri | https://hdl.handle.net/1721.1/132535 | |
dc.description.abstract | Copyright © 2020 American Chemical Society. The interaction between off-resonant laser pulses and excitons in monolayer transition metal dichalcogenides is attracting increasing interest as a route for the valley-selective coherent control of the exciton properties. Here, we extend the classification of the known off-resonant phenomena by unveiling the impact of a strong THz field on the excitonic resonances of monolayer MoS2. We observe that the THz pump pulse causes a selective modification of the coherence lifetime of the excitons, while keeping their oscillator strength and peak energy unchanged. We rationalize these results theoretically by invoking a hitherto unobserved manifestation of the Franz-Keldysh effect on an exciton resonance. As the modulation depth of the optical absorption reaches values as large as 0.05 dB/nm at room temperature, our findings open the way to the use of semiconducting transition metal dichalcogenides as compact and efficient platforms for high-speed electroabsorption devices. | en_US |
dc.language.iso | en | |
dc.publisher | American Chemical Society (ACS) | en_US |
dc.relation.isversionof | 10.1021/ACS.NANOLETT.0C01134 | en_US |
dc.rights | Creative Commons Attribution-Noncommercial-Share Alike | en_US |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/4.0/ | en_US |
dc.source | arXiv | en_US |
dc.title | Room Temperature Terahertz Electroabsorption Modulation by Excitons in Monolayer Transition Metal Dichalcogenides | en_US |
dc.type | Article | en_US |
dc.relation.journal | Nano Letters | en_US |
dc.eprint.version | Original manuscript | en_US |
dc.type.uri | http://purl.org/eprint/type/JournalArticle | en_US |
eprint.status | http://purl.org/eprint/status/NonPeerReviewed | en_US |
dc.date.updated | 2020-11-16T15:36:30Z | |
dspace.orderedauthors | Shi, J; Baldini, E; Latini, S; Sato, SA; Zhang, Y; Pein, BC; Shen, P-C; Kong, J; Rubio, A; Gedik, N; Nelson, KA | en_US |
dspace.date.submission | 2020-11-16T15:36:38Z | |
mit.journal.volume | 20 | en_US |
mit.journal.issue | 7 | en_US |
mit.license | OPEN_ACCESS_POLICY | |
mit.metadata.status | Authority Work and Publication Information Needed |