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  Grating Diffraction of Molecular Beams: Present Day Implementations of Otto Stern’s Concept

Schöllkopf, W. (2021). Grating Diffraction of Molecular Beams: Present Day Implementations of Otto Stern’s Concept. In B. Friedrich, & H. Schmidt-Böcking (Eds.), Molecular Beams in Physics and Chemistry: From Otto Stern's Pioneering Exploits to Present-Day Feats (pp. 575-593). Cham: Springer. doi:10.1007/978-3-030-63963-1_25.

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Datensatz-Permalink: https://hdl.handle.net/21.11116/0000-000A-D3C0-E Versions-Permalink: https://hdl.handle.net/21.11116/0000-000C-8D8F-5
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489844_1_En_Print.indd - 2021_Book_MolecularBeamsInPhysicsAndChem-min.pdf (Verlagsversion), 6MB
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 Urheber:
Schöllkopf, Wieland1, Autor           
Affiliations:
1Molecular Physics, Fritz Haber Institute, Max Planck Society, ou_634545              

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 Zusammenfassung: When Otto Stern embarked on molecular-beam experiments in his new lab at Hamburg University a century ago, one of his interests was to demonstrate the wave-nature of atoms and molecules that had been predicted shortly before by Louis de Broglie. As the effects of diffraction and interference provide conclusive evidence for wave-type behavior, Otto Stern and his coworkers conceived two matter-wave diffraction experiments employing their innovative molecular-beam method. The first concept assumed the molecular ray to coherently scatter off a plane ruled grating at grazing incidence conditions, while the second one was based on the coherent scattering from a cleaved crystal surface. The latter concept allowed Stern and his associates to demonstrate the wave behavior of atoms and molecules and to validate de Broglie’s formula. The former experiment, however, fell short of providing evidence for diffraction of matter waves. It was not until 2007 that the grating diffraction experiment was retried with a modern molecular-beam apparatus. Fully resolved matter-wave diffraction patterns were observed, confirming the viability of Otto Stern’s experimental concept. The correct explanation of the experiment accounts for quantum reflection, another wave effect incompatible with the particle picture, which was not foreseen by Stern and his contemporaries.

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Sprache(n): eng - English
 Datum: 2021-06-202021
 Publikationsstatus: Erschienen
 Seiten: 39
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1007/978-3-030-63963-1_25
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Titel: Molecular Beams in Physics and Chemistry: From Otto Stern's Pioneering Exploits to Present-Day Feats
Genre der Quelle: Buch
 Urheber:
Friedrich, Bretislav, Herausgeber
Schmidt-Böcking, Horst, Herausgeber
Affiliations:
-
Ort, Verlag, Ausgabe: Cham : Springer
Seiten: 647 S. Band / Heft: - Artikelnummer: - Start- / Endseite: 575 - 593 Identifikator: ISBN: 978-3-030-63963-1