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|Title:||The effects of different interfacial environments on the optical nonlinearity of nanometer-sized CdO organosol||Authors:||Wu, X.
|Issue Date:||13-Oct-1997||Citation:||Wu, X.,Wang, R.,Zou, B.,Wu, P.,Wang, L.,Xu, J.,Huang, W. (1997-10-13). The effects of different interfacial environments on the optical nonlinearity of nanometer-sized CdO organosol. Applied Physics Letters 71 (15) : 2097-2099. ScholarBank@NUS Repository.||Abstract:||The third-order optical nonlineanty χ(3) of nanometer-sized CdO with different interfacial environments has been measured using the Z-scan technique. The real and imaginary parts of χ(3) at 800 nm have been determined to be: - 1.55 × 10-16 m2/W and 0.91 cm/GW for CdO-CTAB (cetyltrimethyl ammonium bromide) organosol, and -6.97 × 10-16 m2/W and 8.64 cm/GW for CdO-DBS (dodecylbenzene sulfonate) organosol. Origins of the optical nonlinearity and the effects of the interfacial conditions have been discussed. The optical Stark effect (OSE) and surface trapped states are the possible origins of the observed optical nonlinearity. The possible enhancement of optical nonlinearity of nanoparticles by intentional interfacial modification is suggested. © 1997 American Institute of Physics.||Source Title:||Applied Physics Letters||URI:||http://scholarbank.nus.edu.sg/handle/10635/95228||ISSN:||00036951|
|Appears in Collections:||Staff Publications|
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