Ultrafast nonlinear optical responses induced by multiphoton excitation in all-trans-β-carotene: nonresonant excitation to the optically allowed S2 state
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- Kosumi Daisuke
- Department of Physics, Graduate School of Science, Tohoku University
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- Fujiwara Masazumi
- Department of Physics, Graduate School of Science, Osaka City University
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- Hashimoto Hideki
- Department of Physics, Graduate School of Science, Osaka City University JST/CREST
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- Yoshizawa Masayuki
- Department of Physics, Graduate School of Science, Tohoku University JST/CREST
書誌事項
- タイトル別名
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- Ultrafast Nonlinear Optical Responses Induced by Multiphoton Excitation in All-<I>trans</I>-β-Carotene: Nonresonant Excitation to the Optically Allowed S<SUB>2</SUB> State
- Ultrafast nonlinear optical responses induced by multiphoton excitation in all trans v carotene nonresonant excitation to the optically allowed S2 state
この論文をさがす
抄録
The ultrafast nonlinear optical responses of all-trans-β-carotene have been investigated by femtosecond pump–probe spectroscopy under a nonresonant excitation condition to the optically allowed S2 (11Bu+) state. Instantaneous signals were ascribed to coherent nonlinear optical effects in a three-level electronic system in β-carotene without any convolution of the population of excited states. The temporal responses of the coherent signals were identified with an instrumental response function of the system. At a longer delay (>1 ps), transient signals due to the dark S1 (21Ag−) state induced by two-photon excitation and to the lowest triplet T1 state induced by four-photon excitation were well temporally and spectrally resolved. The S1 decay time and T1 formation time were determined to be 9.5 and 20 ps, respectively. We show the availability of multiphoton excitation spectroscopy for clarifying the ultrafast relaxation kinetics of a complex system.
収録刊行物
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- Journal of the Physical Society of Japan
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Journal of the Physical Society of Japan 78 (10), 104715-104715, 2009
一般社団法人 日本物理学会
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詳細情報 詳細情報について
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- CRID
- 1390282679173744384
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- NII論文ID
- 130005437103
- 40016772369
- 210000108035
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- NII書誌ID
- AA00704814
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- ISSN
- 13474073
- 00319015
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- NDL書誌ID
- 10390932
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可