| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2023-10-20 |
| タイトル |
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|
タイトル |
Beat-frequency-resolved two-dimensional electronic spectroscopy: disentangling vibrational coherences in artificial fluorescent proteins with sub-10-fs visible laser pulses |
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言語 |
en |
| 言語 |
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|
言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
Tsubouchi Masaaki
Ishii Nobuhisa
Kagotani Yuji
Shimizu Rumi
Fujita Takatoshi
Adachi Motoyasu
Itakura Ryuji
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| 抄録 |
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内容記述タイプ |
Abstract |
|
内容記述 |
We perform a beat-frequency-resolved analysis for two-dimensional electronic spectroscopy using a high-speed and stable 2D electronic spectrometer and few-cycle visible laser pulses to disentangle the vibrational coherences in an artificial fluorescent protein. We develop a highly stable ultrashort light source that generates 5.3-fs visible pulses with a pulse energy of 4.7 μJ at a repetition rate of 10 kHz using multi-plate pulse compression and laser filamentation in a gas cell. The above-5.3-fs laser pulses together with a high-speed multichannel detector enable us to measure a series of 2D electronic spectra, which are resolved in terms of beat frequency related to vibrational coherence. We successfully extract the discrete vibrational peaks behind the inhomogeneous broadening in the absorption spectra and the vibrational quantum beats of the excited electronic state behind the strong stationary signal in the typical 2D electronic spectra. |
| 書誌情報 |
Optics Express
巻 31,
号 4,
p. 6890-6906,
発行日 2023-02
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| 出版者 |
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出版者 |
Optica Publishing Group |
| ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
1094-4087 |
| DOI |
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|
識別子タイプ |
DOI |
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関連識別子 |
10.1364/OE.480505 |
