Abstract
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 as saturation of absorption.
| Original language | English |
|---|---|
| Pages (from-to) | 177-182 |
| Number of pages | 6 |
| Journal | Journal of Physics: Conference Series |
| Volume | 21 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2005 Jan 1 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Nonlinear and ultrafast optical response in single-walled carbon nanotubes. / Maeda, A.; Matsumoto, S.; Kishida, H.; Takenobu, T.; Iwasa, Y.; Shiraishi, M.; Ata, M.; Okamoto, H.
In: Journal of Physics: Conference Series, Vol. 21, No. 1, 01.01.2005, p. 177-182.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Nonlinear and ultrafast optical response in single-walled carbon nanotubes
AU - Maeda, A.
AU - Matsumoto, S.
AU - Kishida, H.
AU - Takenobu, T.
AU - Iwasa, Y.
AU - Shiraishi, M.
AU - Ata, M.
AU - Okamoto, H.
PY - 2005/1/1
Y1 - 2005/1/1
N2 - 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 as saturation of absorption.
AB - 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 as saturation of absorption.
UR - http://www.scopus.com/inward/record.url?scp=25444451560&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=25444451560&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/21/1/029
DO - 10.1088/1742-6596/21/1/029
M3 - Article
AN - SCOPUS:25444451560
VL - 21
SP - 177
EP - 182
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
ER -