Change search
ReferencesLink to record
Permanent link

Direct link
Few-states models for three-photon absorption
KTH, Superseded Departments, Chemistry.
KTH, Superseded Departments, Biotechnology.ORCID iD: 0000-0003-0007-0394
KTH, Superseded Departments, Biotechnology.ORCID iD: 0000-0002-1763-9383
2004 (English)In: Journal of Chemical Physics, ISSN 0021-9606, E-ISSN 1089-7690, Vol. 121, no 5, 2020-2029 p.Article in journal (Refereed) Published
Abstract [en]

Few-states models are derived for the calculation of three-photon absorption matrix elements. Together with earlier derived few-states models for two-photon absorption, the models are evaluated against results from response theory calculations that provide the full sum-over-states values. It is demonstrated that not even for systems with charge-transfer character, where few-states models for two-photon absorption are in excellent agreement with response theory, do the models provide a quantitatively correct description for three-photon absorption. The convergence behavior, merits, and shortcomings of the models are elucidated in some detail. The role of various characteristics of the electronic structure, such as symmetry, charge transfer, and conjugation-important for the formation of a large three-photon cross section-is analyzed. As for two-photon absorption cross sections, it is essential to consider generalized few-states models also for three-photon absorption, that is, to account for dipolar directions and laser beam polarization. Despite their poor quantitative performance, it is argued that few-states models at times can be useful for interpretation purposes when applied to three-photon absorption.

Place, publisher, year, edition, pages
2004. Vol. 121, no 5, 2020-2029 p.
Keyword [en]
molecular-orbital methods, 2-photon absorption, cross-sections, 2-photon-absorbing chromophores, response functions, organic-molecules, charge-transfer, basis-sets, symmetry, design
National Category
Chemical Sciences
URN: urn:nbn:se:kth:diva-23576DOI: 10.1063/1.1767516ISI: 000222680900003ScopusID: 2-s2.0-4043147736OAI: diva2:342275
QC 20100525 QC 20110926Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2012-03-20Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Cronstrand, PeterLuo, YiÅgren, Hans
By organisation
In the same journal
Journal of Chemical Physics
Chemical Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 26 hits
ReferencesLink to record
Permanent link

Direct link