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Poisson’s spot with molecules
In the Poisson-spot experiment, waves emanating from a source are blocked by a circular obstacle. Due to their positive on-axis interference an image of the source the Poisson spot is observed within the geometrical shadow of the obstacle. In this paper we report the observation of Poisson’s spot us...
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Published in: | Free-standing, axially-symmetric diffraction gratings for neutral matter-waves: experiments and fabrication axially-symmetric diffraction gratings for neutral matter-waves: experiments and fabrication, 2009 |
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container_title | Free-standing, axially-symmetric diffraction gratings for neutral matter-waves: experiments and fabrication |
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creator | Reisinger, Thomas Patel, Amil A Reingruber, Herbert Fladischer, Katrin Ernst, Wolfgang E Bracco, Gianangelo Smith, Henry I Holst, Bodil |
description | In the Poisson-spot experiment, waves emanating from a source are blocked by a circular obstacle. Due to their positive on-axis interference an image of the source the Poisson spot is observed within the geometrical shadow of the obstacle. In this paper we report the observation of Poisson’s spot using a beam of neutral deuterium molecules. The wavelength independence and the weak constraints on angular alignment and position of the circular obstacle make Poisson’s spot a promising candidate for applications ranging from the study of large molecule diffraction to patterning with molecules. |
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title | Poisson’s spot with molecules |
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