Nonresonant coherent two-dimensional spectroscopy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F22%3A00560632" target="_blank" >RIV/68378271:_____/22:00560632 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/22:10451972

Výsledek na webu

<a href="https://doi.org/10.1016/j.saa.2021.120441" target="_blank" >https://doi.org/10.1016/j.saa.2021.120441</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.saa.2021.120441" target="_blank" >10.1016/j.saa.2021.120441</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Nonresonant coherent two-dimensional spectroscopy

Popis výsledku v původním jazyce

Coherent electronic two-dimensional spectroscopy is nowadays a matured experimental technique that monitors the time evolution of the studied sample after its resonant optical excitation. However, the experimental experience shows that even nonresonant interactions can provide detectable spectral contributions. These are often present as a weak parasitic signals originating in the solvent and/or cuvette walls underlying the resonant spectrum of the actual sample and as such they are usually discarded from the analysis. In this work, we adapt the formalism of double-sided Feynman diagrams for the needs of coherent two-dimensional spectroscopy in the nonresonant regime. We analytically calculate the third-order polarization of a two-level and several variants of three-level systems. As a result, we demonstrate the typical appearance of the optical Kerr-effect, cross-phase modulation, excited-state coherence, two-photon absorption and stimulated Raman scattering in the 2D spectrum.

Název v anglickém jazyce

Nonresonant coherent two-dimensional spectroscopy

Popis výsledku anglicky

Coherent electronic two-dimensional spectroscopy is nowadays a matured experimental technique that monitors the time evolution of the studied sample after its resonant optical excitation. However, the experimental experience shows that even nonresonant interactions can provide detectable spectral contributions. These are often present as a weak parasitic signals originating in the solvent and/or cuvette walls underlying the resonant spectrum of the actual sample and as such they are usually discarded from the analysis. In this work, we adapt the formalism of double-sided Feynman diagrams for the needs of coherent two-dimensional spectroscopy in the nonresonant regime. We analytically calculate the third-order polarization of a two-level and several variants of three-level systems. As a result, we demonstrate the typical appearance of the optical Kerr-effect, cross-phase modulation, excited-state coherence, two-photon absorption and stimulated Raman scattering in the 2D spectrum.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy

ISSN

1386-1425

e-ISSN

1873-3557

Svazek periodika

267

Číslo periodika v rámci svazku

FEB

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

120441

Kód UT WoS článku

000712993800004

EID výsledku v databázi Scopus

2-s2.0-85117403323