Erlangen 2018 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
Q: Fachverband Quantenoptik und Photonik
Q 38: Poster: Quantum Optics and Photonics I
Q 38.14: Poster
Dienstag, 6. März 2018, 16:15–18:15, Orangerie
Diffractive Guiding of Matter Waves — •Moritz Carmesin1, Maxim A. Efremov1, Dror Weisman2, Ady Arie2, and Wolfgang P. Schleich1,3 — 1Institut für Quantenphysik and Center for Integrated Quantum Science and Technology (IQST), Universität Ulm, 89069 Ulm, Germany — 2Department of Physical Electronics, Faculty of Engineering, Tel-Aviv University, Tel-Aviv 69978, Israel — 3Hagler Institute for Advanced Study, Institute for Quantum Science and Engineering (IQSE), and Texas A&M AgriLife Research, Texas A&M University, College Station, TX 77843-4242, USA
A matter wave freely propagating behind a single slit narrows before it expands. This effect, known as diffractive focusing [1, 2], originates exclusively from the modulation of the wave’s amplitude, rather than from the phase modulation due to a lens.
By placing several single slits in a row, we can exploit their narrowing feature in order to guide a wave, i. e. to transfer a maximal amount of intensity to a point at a given distance from the source of the wave. This novel kind of wave guide based on diffraction is useful in situations where the conventional guiding based on reflection is not easily applicable.
This work is supported by the German-Israeli Cooperation (DIP) of DFG.
[1] Case, W. B., Sadurni, E., Schleich, W. P.,
Optics Express 20,
[1] 27253 (2012)
[2] Weisman, D. et al. PRL 118 154301 (2017)