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Proceedings Paper

Study on optical nonlinearities of porphyrin covalently functionalized single-wall carbon nanotubes
Author(s): Zhi-Bo Liu; Wen-Yuan Zhou; Jian-Guo Tian; Zhen Guo; Dong-Mei Ren; Jian-Yu Zheng
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Paper Abstract

We studied nonlinear absorption of three kinds of porphyrin covalently functionalized SWNTs using Z-scan technique with nanosecond pulses at 440 nm, 460nm, 480nm, 500nm, and 532nm. The large enhancement of nonlinear absorption in porphyrin covalently functionalized SWNTs were found at 532 nm. This nonlinear behavior of SWNTs has been shown to arise from strong nonlinear scattering, and porphyrin exhibits strong reverse saturable absorption at 532 nm. The porphyrins covalently functionalized SWNTs offer superior performance to the individual SWNTs and porphyrins by combination of nonlinear mechanism and the photoinduced electron or energy transfer between porphyrin moiety and SWNTs.

Paper Details

Date Published: 4 September 2008
PDF: 8 pages
Proc. SPIE 7030, Nanophotonic Materials V, 703017 (4 September 2008); doi: 10.1117/12.799916
Show Author Affiliations
Zhi-Bo Liu, Nankai Univ. (China)
Wen-Yuan Zhou, Nankai Univ. (China)
Jian-Guo Tian, Nankai Univ. (China)
Zhen Guo, Nankai Univ. (China)
Dong-Mei Ren, Nankai Univ. (China)
Jian-Yu Zheng, Nankai Univ. (China)

Published in SPIE Proceedings Vol. 7030:
Nanophotonic Materials V
Zeno Gaburro; Stefano Cabrini; Dmitri Talapin, Editor(s)

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