14 July 2015 Supercontinuum generation in aqueous core/shell structured nanoparticles
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We report the observation of a supercontinuum (SC) in aqueous CdTe/ZnSe quantum dots (QDs) pumped by 800-nm femtosecond laser pulses based on simulations and experiments. For an average nanocrystal of 5.5 nm in size and a weight concentration of 5  mg/mL, the SC generated with a low-input energy range exhibits high optical to optical conversion efficiency. The measured SC spectrum exhibits spectral broadening that is significantly influenced by the nonlinear coefficient of the QDs. This nanoparticles-based SC effect may have special applications for optical coherence imaging and ultrashort pulse compression.
© 2015 Society of Photo-Optical Instrumentation Engineers (SPIE)
Siyi Hu, Liwei Liu, Yue Wang, Yu Ren, Haiyan Tao, Yueshu Feng, Chen Huang, "Supercontinuum generation in aqueous core/shell structured nanoparticles," Journal of Nanophotonics 9(1), 093065 (14 July 2015). https://doi.org/10.1117/1.JNP.9.093065 . Submission:

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