Nonlinear and ultrafast optical response in single-walled carbon nanotubes

@inproceedings{Maeda2005NonlinearAU,
  title={Nonlinear and ultrafast optical response in single-walled carbon nanotubes},
  author={Atsuya Maeda and Shinji Matsumoto and Hideo Kishida and Taishi Takenobu and Yoshihiro Iwasa and Masashi Shiraishi and Masafumi Ata and Harumichi Okamoto},
  year={2005}
}
We measured third-order nonlinear susceptibility (χ(3)) spectra in semiconducting single-walled carbon nanotubes (SWNTs) by the Z-scan method. |Im χ(3)| is remarkably enhanced under resonant excitation to the lowest interband transition, reaching 4.2 × 10−6 esu. A comparison of the transient absorption changes evaluated by degenerate and nondegenerate pump-probe measurements suggests that the resonant enhancement of |Im χ(3)| is dominated by a coherent process rather than by incoherent one such… CONTINUE READING

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SATURABLE ABSORPTION IN SINGLE-WALLED CARBON NANOTUBES

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