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|Title:||Direct observation of three-photon resonance in water-soluble ZnS quantum dots|
|Citation:||He, J., Scholes, G.D., Ang, Y.L., Ji, W., Beh, C.W.J., Chin, W.S. (2008). Direct observation of three-photon resonance in water-soluble ZnS quantum dots. Applied Physics Letters 92 (13) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.2906904|
|Abstract:||We report on large three-photon absorption (3PA) in thioglycol-capped ZnS semiconductor quantum dots (QDs) at different wavelengths with femtosecond Z-scan technique. Both the intrinsic 3PA coefficients and cross sections of the 1.3 nm sized ZnS QDs in aqueous solution are nearly one order of magnitude greater than that of ZnS bulk crystal. The 3PA resonance in ZnS QDs is observed at the lowest excitonic transition of 1S (e) -1 S32 (h). © 2008 American Institute of Physics.|
|Source Title:||Applied Physics Letters|
|Appears in Collections:||Staff Publications|
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