%0 Journal Article
%T Optical Nonlinear Properties of CdSeS/ZnS Core/Shell Quantum Dots<br>
%A WU Feng
%A TIAN Wei
%A MA i-Na
%A CHEN Wen-Ju
%A ZFANG Gui-Lan
%A ZHAO Guo-Feng
%A CAO Shi-Dong
%A XIE Wei
%A <br>
%J 中国物理快报
%D 2008
%I 
%X The optical nonlinear properties of CdSeS/ZnS quantum dots (QDs) areinvestigated by Z-scan technique using fundamental harmonic generation(1064nm) of mode-locked Nd:YAG laser for the first time. The experimental results show that two photon absorptions (TPA) occur at input intensity up to 12.5GW/cm2. CdSeS/ZnS QDs have an average TPA cross section of 13710GM and large nonlinear refractive index on order of 10-7esu. The large optical nonlinearities perhaps allow the CdSeS/ZnS QDs to be one kind of candidate material for bioimaging and fluorescence label, optical limiting and all-optical switching.
%K 78
%K 67
%K Hc
%K 42
%K 65
%K -k<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=E27DA92E19FE279A273627875A70D74D&aid=A94E69B95A38D8122C4F0B08B1963466&yid=67289AFF6305E306&vid=C5154311167311FE&iid=E158A972A605785F&sid=7A62566A3C1FFBE1&eid=AA2E209AD442C5CC&journal_id=0256-307X&journal_name=中国物理快报&referenced_num=0&reference_num=0