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

doi:10.1143/JPSJ.75.043709

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

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

17 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 language	English
Article number	043709
Journal	Journal of the Physical Society of Japan
Volume	75
Issue number	4
DOIs	https://doi.org/10.1143/JPSJ.75.043709
Publication status	Published - 2006 Apr
Externally published	Yes

Keywords

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

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1143/JPSJ.75.043709

Cite this

@article{9edc17c37a4a45e092554dfd101cc39a,

title = "Gigantic optical Stark effect and ultrafast relaxation of excitons in single-walled carbon nanotubes",

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.",

keywords = "Carbon nanotube, Exciton, Nonlinear optical response, Optical Stark effect, Pump-probe spectroscopy",

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

year = "2006",

month = apr,

doi = "10.1143/JPSJ.75.043709",

language = "English",

volume = "75",

journal = "Journal of the Physical Society of Japan",

issn = "0031-9015",

publisher = "Physical Society of Japan",

number = "4",

}

TY - JOUR

T1 - Gigantic optical Stark effect and ultrafast relaxation of excitons in single-walled carbon nanotubes

AU - Maeda, Atsushi

AU - Matsumoto, Shinji

AU - Kishida, Hideo

AU - Takenobu, Taishi

AU - Iwasa, Yoshihiro

AU - Shimoda, Hideo

AU - Zhou, Otto

AU - Shiraishi, Masashi

AU - Okamoto, Hiroshi

PY - 2006/4

Y1 - 2006/4

N2 - 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.

AB - 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.

KW - Carbon nanotube

KW - Exciton

KW - Nonlinear optical response

KW - Optical Stark effect

KW - Pump-probe spectroscopy

UR - http://www.scopus.com/inward/record.url?scp=33645704952&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33645704952&partnerID=8YFLogxK

U2 - 10.1143/JPSJ.75.043709

DO - 10.1143/JPSJ.75.043709

M3 - Article

AN - SCOPUS:33645704952

SN - 0031-9015

VL - 75

JO - Journal of the Physical Society of Japan

JF - Journal of the Physical Society of Japan

IS - 4

M1 - 043709

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this