Probing molecular photophysics in a matter-wave interferometer

Autor(en)

Lukas Martinetz, Benjamin A. Stickler, Ksenija Simonović, Richard Ferstl, Christian Brand, Markus Arndt, Klaus Hornberger

Abstrakt

We show that matter-wave diffraction off a single standing laser wave can be used as an accurate measurement scheme for photophysical molecular parameters. These include state-dependent optical polarizabilities and photon-absorption cross sections, the relaxation rates for fluorescence, internal conversion, and intersystem crossing, as well as ionization or cleavage probabilities. We discuss how the different photophysical processes manifest as features of the interference pattern, and we determine the accuracy of molecular parameters estimated from a realistic measurement with finite particle numbers. The analysis is based on an analytic calculation in Wigner representation, which accounts for the laser-induced coherent and incoherent dynamics, for the finite longitudinal and transverse coherence in the matter-wave beam, the gravitational and Coriolis acceleration, and an imperfect standing laser wave.

Organisation(en)

Quantenoptik, Quantennanophysik und Quanteninformation

Externe Organisation(en)

Universität Duisburg-Essen, Universität Ulm, Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR)

Journal

Physical Review Research

Band

6

Anzahl der Seiten

17

ISSN

2643-1564

DOI

https://doi.org/10.48550/arXiv.2407.18775

Publikationsdatum

12-2024

Peer-reviewed

Ja

ÖFOS 2012

103025 Quantenmechanik, 103005 Atomphysik, 103021 Optik

ASJC Scopus Sachgebiete

Allgemeine Physik und Astronomie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/b626b784-d551-49af-b30e-64a48c2c7c67