Time-resolved high-harmonic spectroscopy of ultrafast ring-opening of 1,3-cyclohexadiene
We report, to the best of our knowledge, the first time-resolved high-harmonic spectroscopy (TR-HHS) study of a chemical bond rearrangement. We investigate the transient change of the high-harmonic signal from 1,3-cyclohexadiene (CHD), which undergoes ring-opening and isomerizes to 1,3,5-hexatriene...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2019-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2019/10/epjconf_up2019_09017.pdf |
| _version_ | 1818621988991664128 |
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| author | Kaneshima Keisuke Ninota Yuki Sekikawa Taro |
| author_facet | Kaneshima Keisuke Ninota Yuki Sekikawa Taro |
| author_sort | Kaneshima Keisuke |
| collection | DOAJ |
| description | We report, to the best of our knowledge, the first time-resolved high-harmonic spectroscopy (TR-HHS) study of a chemical bond rearrangement. We investigate the transient change of the high-harmonic signal from 1,3-cyclohexadiene (CHD), which undergoes ring-opening and isomerizes to 1,3,5-hexatriene (HT) upon photoexcitation. By associating the variation in the harmonic yield to the changes in the electronic state and vibrational frequencies of the molecule due to isomerization, we find that the CHD excited via two-photon absorption of 3.1 eV photons isomerizes to HT, i.e., ring-opening occurs, around 400 fs after the excitation. The present results demonstrate that TR-HHS, which can track both electronic and nuclear dynamics, is a powerful tool for studying ultrafast photochemical reactions. |
| first_indexed | 2024-12-16T18:18:02Z |
| format | Article |
| id | doaj.art-f579de8b759845d28fc9616f117bf04d |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-16T18:18:02Z |
| publishDate | 2019-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-f579de8b759845d28fc9616f117bf04d2022-12-21T22:21:38ZengEDP SciencesEPJ Web of Conferences2100-014X2019-01-012050901710.1051/epjconf/201920509017epjconf_up2019_09017Time-resolved high-harmonic spectroscopy of ultrafast ring-opening of 1,3-cyclohexadieneKaneshima KeisukeNinota YukiSekikawa TaroWe report, to the best of our knowledge, the first time-resolved high-harmonic spectroscopy (TR-HHS) study of a chemical bond rearrangement. We investigate the transient change of the high-harmonic signal from 1,3-cyclohexadiene (CHD), which undergoes ring-opening and isomerizes to 1,3,5-hexatriene (HT) upon photoexcitation. By associating the variation in the harmonic yield to the changes in the electronic state and vibrational frequencies of the molecule due to isomerization, we find that the CHD excited via two-photon absorption of 3.1 eV photons isomerizes to HT, i.e., ring-opening occurs, around 400 fs after the excitation. The present results demonstrate that TR-HHS, which can track both electronic and nuclear dynamics, is a powerful tool for studying ultrafast photochemical reactions.https://www.epj-conferences.org/articles/epjconf/pdf/2019/10/epjconf_up2019_09017.pdf |
| spellingShingle | Kaneshima Keisuke Ninota Yuki Sekikawa Taro Time-resolved high-harmonic spectroscopy of ultrafast ring-opening of 1,3-cyclohexadiene EPJ Web of Conferences |
| title | Time-resolved high-harmonic spectroscopy of ultrafast ring-opening of 1,3-cyclohexadiene |
| title_full | Time-resolved high-harmonic spectroscopy of ultrafast ring-opening of 1,3-cyclohexadiene |
| title_fullStr | Time-resolved high-harmonic spectroscopy of ultrafast ring-opening of 1,3-cyclohexadiene |
| title_full_unstemmed | Time-resolved high-harmonic spectroscopy of ultrafast ring-opening of 1,3-cyclohexadiene |
| title_short | Time-resolved high-harmonic spectroscopy of ultrafast ring-opening of 1,3-cyclohexadiene |
| title_sort | time resolved high harmonic spectroscopy of ultrafast ring opening of 1 3 cyclohexadiene |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2019/10/epjconf_up2019_09017.pdf |
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