Broadband Optical Non-linearity Induced by Charge-Transfer Excitons in Type-II CdSe/ZnTe Nanocrystals
Graphical Benefiting from excitonic charge-transfer states, an efficient non-linear optical response is observed in type-II nanocrystals by four-wave mixing when the incident photon energy lies below the bandgaps of constituent semiconductors. The non-linear optical properties in nanocrystals can be manipulated by the band alignment of the core–shell components, which serves as a promising platform to design broadband non-linear optical devices.
研究领域:
纳米光子学
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材料科学
·
凝聚态物理
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光学工程
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半导体物理学
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