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Isotope-selective high-order interferometry with large organic molecules in free fall

Rodewald, Jonas and Dörre, Nadine and Grimaldi, Andrea and Geyer, Philipp and Felix, Lukas and Mayor, Marcel and Shayeghi, Armin and Arndt, Markus . (2018) Isotope-selective high-order interferometry with large organic molecules in free fall. New journal of physics, 20 (3). 033016.

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Official URL: https://edoc.unibas.ch/68443/

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Abstract

Interferometry in the time domain has proven valuable for matter-wave based measurements. This concept has recently been generalized to cold molecular clusters using short-pulse standing light waves which realized photo-depletion gratings, arranged in a time-domain TalbotâEuro"Lau interferometer (OTIMA). Here we extend this idea further to large organic molecules and demonstrate a new scheme to scan the emerging molecular interferogram in position space. The capability of analyzing different isotopes of the same monomer under identical conditions opens perspectives for studying the interference fringe shift as a function of time in gravitational free fall. The universality of OTIMA interferometry allows one to handle a large variety of particles. In our present work, quasi-continuous laser evaporation allows transferring fragile organic molecules into the gas phase, covering more than an order of magnitude in mass between 614 amu and 6509 amu, i.e. 300% more massive than in previous OTIMA experiments. For all masses, we find about 30% fringe visibility.
Faculties and Departments:05 Faculty of Science > Departement Chemie
05 Faculty of Science > Departement Chemie > Chemie > Molecular Devices and Materials (Mayor)
UniBasel Contributors:Mayor, Marcel and Felix, Lukas
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:IOP Publishing
ISSN:1367-2630
Note:Publication type according to Uni Basel Research Database: Journal article
Language:English
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Last Modified:03 Jul 2019 14:44
Deposited On:03 Jul 2019 14:44

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