Dynamic interference of the high harmonics from photoisomerizing 1,3-cyclohexadiene

Autor:	Keisuke Kaneshima, Yuki Ninota, Taro Sekikawa
Rok vydání:	2021
Předmět:	Physics Relaxation (NMR) Statistical and Nonlinear Physics 01 natural sciences Molecular physics Atomic and Molecular Physics and Optics 010309 optics Interference (communication) Ionization Harmonics 0103 physical sciences High harmonic generation Ionization energy Ground state Ultrashort pulse
Zdroj:	Journal of the Optical Society of America B. 38:441
ISSN:	1520-8540 0740-3224
Popis:	The ionization potential difference between photoexcited and ground-state molecules results in a phase difference between their high harmonics, which causes high harmonic interference. The interference enables us to reveal how ionization potential of the photoexcited molecules evolves along the electronic relaxation path from the Franck–Condon state to the electronic ground state. We observe the ultrafast electron dynamics of a photoisomerizing molecule, 1,3-cyclohexadiene, via high harmonic interference. The experimental observations reveal that the electronic relaxation of 1,3-cyclohexadiene takes 200 fs, and the photoisomerization to 1, 3, 5-hexatriene takes an additional 450 fs.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a6a9f23db5dbed6d1f1f11b25ca13fcd https://doi.org/10.1364/josab.404251 Zobrazit plný text záznamu