An Eyepiece Interferometer
نویسندگان
چکیده
منابع مشابه
Telescope Eyepiece Experimenter Kit
detailed in Table 1. The washers are used to center and space lenses inside the eyepiece body. The washers provide a useful range of dimensions for accommodating different size lenses. The elastic rings are slightly oversized, and are used to snugly hold the optics inside the eyepiece body. The elastic rings (which can be inserted and removed) allow for fast design changes and quick experiments...
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We have demonstrated an interferometer for atoms. A three-grating geometry is used, in which the interfering beams are distinctly separated in both position and momentum. We used a highly collimated beam of sodium atoms with a de Broglie wavelength of 16 pm and high-quality 0.4-pm-period freestanding gratings which we fabricated using a novel method. The interference signal is 70 counts/s, whic...
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The Talbot effect [1], in which a wave imprinted with transverse periodicity reconstructs itself at regular intervals, is a diffraction phenomenon that occurs in many physical systems. Here we present the first observation of the Talbot effect for electron de Broglie waves behind a nanofabricated transmission grating. This was thought to be difficult because of Coulomb interactions between elec...
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Eyepieces often limit the overall optical performance of visual instruments and, because of the wide field-of-view and high-performance requirements, they present a well-known difficult design problem. Improvement of existing eyepieces is limited with the use of conventional design variables. We have designed and fabricated a hybrid diffractive-refractive wide-field (>60°) eyepiece that offers ...
متن کامل1 An Interferometer for Atoms
We have demonstrated a novel diffraction grating for atoms. Acollimated beam of sodium atoms with a de Broglie wavelength of 17picometers was diffracted by transmission through an array of slitswith a spatial period of 0.2 μm formed in a gold membrane. This isthe first reported diffraction of atoms by a fabricated periodicstructure. Our transmission diffraction grating for a...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1951
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/111.4.387