Gigantic optical Stark effect and ultrafast relaxation of excitons in single-walled carbon nanotubes

Atsushi Maeda, Shinji Matsumoto, Hideo Kishida, Taishi Takenobu, Yoshihiro Iwasa, Hideo Shimoda, Otto Zhou, Masashi Shiraishi, Hiroshi Okamoto

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

We report a splitting and a shift of exciton absorptions in semiconducting single-walled carbon nanotubes (SWNTs) by resonant and off-resonant excitation using a fs laser pulse, respectively. This is the first unambiguous observation of the optical Stark effect of excitons in SWNTs, which is responsible for their high optical-switching performance. By scrutinizing transient absorption spectra from the mid-to near-infrared region (0.1- 0.8 eV), the ultrafast recovery of real carrier excitations characteristic of bundled structures was attributed to the energy- and charge-transfer processes to metallic SWNTs.

Original languageEnglish
Article number043709
JournalJournal of the Physical Society of Japan
Volume75
Issue number4
DOIs
Publication statusPublished - 2006 Apr
Externally publishedYes

Fingerprint

Stark effect
carbon nanotubes
excitons
optical switching
excitation
recovery
energy transfer
charge transfer
absorption spectra
shift
pulses
lasers

Keywords

  • Carbon nanotube
  • Exciton
  • Nonlinear optical response
  • Optical Stark effect
  • Pump-probe spectroscopy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Maeda, A., Matsumoto, S., Kishida, H., Takenobu, T., Iwasa, Y., Shimoda, H., ... Okamoto, H. (2006). Gigantic optical Stark effect and ultrafast relaxation of excitons in single-walled carbon nanotubes. Journal of the Physical Society of Japan, 75(4), [043709]. https://doi.org/10.1143/JPSJ.75.043709

Gigantic optical Stark effect and ultrafast relaxation of excitons in single-walled carbon nanotubes. / Maeda, Atsushi; Matsumoto, Shinji; Kishida, Hideo; Takenobu, Taishi; Iwasa, Yoshihiro; Shimoda, Hideo; Zhou, Otto; Shiraishi, Masashi; Okamoto, Hiroshi.

In: Journal of the Physical Society of Japan, Vol. 75, No. 4, 043709, 04.2006.

Research output: Contribution to journalArticle

Maeda, A, Matsumoto, S, Kishida, H, Takenobu, T, Iwasa, Y, Shimoda, H, Zhou, O, Shiraishi, M & Okamoto, H 2006, 'Gigantic optical Stark effect and ultrafast relaxation of excitons in single-walled carbon nanotubes', Journal of the Physical Society of Japan, vol. 75, no. 4, 043709. https://doi.org/10.1143/JPSJ.75.043709
Maeda, Atsushi ; Matsumoto, Shinji ; Kishida, Hideo ; Takenobu, Taishi ; Iwasa, Yoshihiro ; Shimoda, Hideo ; Zhou, Otto ; Shiraishi, Masashi ; Okamoto, Hiroshi. / Gigantic optical Stark effect and ultrafast relaxation of excitons in single-walled carbon nanotubes. In: Journal of the Physical Society of Japan. 2006 ; Vol. 75, No. 4.
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AU - Iwasa, Yoshihiro

AU - Shimoda, Hideo

AU - Zhou, Otto

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