OPTICAL NONLINEARITY OF CdSe AND CdSe-C60 QUANTUM DOT
OPTICAL NONLINEARITY OF CdSe AND CdSe-C60 QUANTUM DOT
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DOI：
10.1142/s0217984908017734
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发表时间：
2008-12
影响因子：
1.9
通讯作者：
Hao Song;Y. Zhai;Zhangkai Zhou;Zhong-Hua Hao;Li Zhou
中科院分区：
文献类型：
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作者：
Hao Song;Y. Zhai;Zhangkai Zhou;Zhong-Hua Hao;Li Zhou
The third-order optical nonlinear properties of CdSe quantum dots (QDs) and CdSe-C60 QDs are investigated by Z-scan technique with picosecond pulses at the wavelength of 800 nm. The value of the nonlinear absorption coefficient β of CdSe-C60 QDs is measured to be 2.9 cm/GW, which is about two times larger than that of CdSe QDs. The nonlinear refraction index γ of CdSe-C60 QDs is -2.8 × 10-3cm2/GW, which is about seven times larger than that of CdSe QDs. Presence of C60 contributes to the larger optical nonlinearity of CdSe-C60 QDs comparing with CdSe QDs.
