Vibronic dynamics resolved by global and target analysis of ultrafast transient absorption spectra

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00563557" target="_blank" >RIV/68378271:_____/21:00563557 - isvavai.cz</a>

Výsledek na webu

<a href="https://hdl.handle.net/11104/0335577" target="_blank" >https://hdl.handle.net/11104/0335577</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0060672" target="_blank" >10.1063/5.0060672</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Vibronic dynamics resolved by global and target analysis of ultrafast transient absorption spectra

Popis výsledku v původním jazyce

We present a methodology that provides a complete parametric description of the time evolution of the electronically and vibrationally excited states as detected by ultrafast transient absorption (TA). Differently from previous approaches, which started fitting the data after ≈100 fs, no data are left out in our methodology, and the “coherent artifact” and the instrument response function are fully taken into account. In case studies, the method is applied to solvents, the dye Nile blue, and all-trans β-carotene in cyclohexane solution. The estimated Damped Oscillation Associated Spectra (DOAS) and phases express the most important vibrational frequencies present in the molecular system. By global fit alone of the experimental data, it is difficult to interpret in detail the underlying dynamics.

Název v anglickém jazyce

Vibronic dynamics resolved by global and target analysis of ultrafast transient absorption spectra

Popis výsledku anglicky

We present a methodology that provides a complete parametric description of the time evolution of the electronically and vibrationally excited states as detected by ultrafast transient absorption (TA). Differently from previous approaches, which started fitting the data after ≈100 fs, no data are left out in our methodology, and the “coherent artifact” and the instrument response function are fully taken into account. In case studies, the method is applied to solvents, the dye Nile blue, and all-trans β-carotene in cyclohexane solution. The estimated Damped Oscillation Associated Spectra (DOAS) and phases express the most important vibrational frequencies present in the molecular system. By global fit alone of the experimental data, it is difficult to interpret in detail the underlying dynamics.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Chemical Physics

ISSN

0021-9606

e-ISSN

1089-7690

Svazek periodika

155

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

14

Strana od-do

114113

Kód UT WoS článku

000751321000003

EID výsledku v databázi Scopus

2-s2.0-85115603274