Enhanced nonlinear interaction of polaritons via excitonic Rydberg states in monolayer WSe(2).
Enhanced nonlinear interaction of polaritons via excitonic Rydberg states in monolayer WSe(2).
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通过单层二硒化钨(WSe₂ )中的激子里德堡态增强极化激元的非线性相互作用 。
DOI:
10.1038/s41467-021-22537-x
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发表时间:
2021-04-15
影响因子:
16.6
通讯作者:
Menon VM
中科院分区:
文献类型:
--
作者:
Gu J;Walther V;Waldecker L;Rhodes D;Raja A;Hone JC;Heinz TF;Kéna-Cohen S;Pohl T;Menon VM
Strong optical nonlinearities play a central role in realizing quantum photonic technologies. Exciton-polaritons, which result from the hybridization of material excitations and cavity photons, are an attractive candidate to realize such nonlinearities. While the interaction between ground state excitons generates a notable optical nonlinearity, the strength of such interactions is generally not sufficient to reach the regime of quantum nonlinear optics. Excited states, however, feature enhanced interactions and therefore hold promise for accessing the quantum domain of single-photon nonlinearities. Here we demonstrate the formation of exciton-polaritons using excited excitonic states in monolayer tungsten diselenide (WSe2) embedded in a microcavity. The realized excited-state polaritons exhibit an enhanced nonlinear response ∼ which is ∼4.6 times that for the ground-state exciton. The demonstration of enhanced nonlinear response from excited exciton-polaritons presents the potential of generating strong exciton-polariton interactions, a necessary building block for solid-state quantum photonic technologies. Here, the authors show the formation of exciton-polaritons with enhanced nonlinear response using excited excitonic Rydberg states in monolayer WSe2 embedded in a microcavity.
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影响因子:
38.3
作者:
Barachati, Fabio;Fieramosca, Antonio;Kena-Cohen, Stephane
通讯作者:
Kena-Cohen, Stephane
影响因子:
16.6
作者:
Goryca, M.;Li, J.;Crooker, S. A.
通讯作者:
Crooker, S. A.
影响因子:
64.8
作者:
Kasprzak, J.;Richard, M.;Dang, Le Si
通讯作者:
Dang, Le Si
影响因子:
3.7
作者:
Ciuti, C;Savona, V;Schwendimann, P
通讯作者:
Schwendimann, P
影响因子:
8.6
作者:
He, Keliang;Kumar, Nardeep;Shan, Jie
通讯作者:
Shan, Jie