phase aberration
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Phase-contrast imaging — Phase contrast imaging, or – more casually – High Resolution (HR) imaging, is a method of imaging in Transmission Electron Microscopy (TEM). The ability to image using phase contrast is one of the key elements which differentiates Transmission… … Wikipedia
Aberration of light — Light from location 1 will appear to be coming from location 2 for a moving telescope due to the finite speed of light, a phenomenon known as the aberration of light. The aberration of light (also referred to as astronomical aberration or stellar … Wikipedia
Defocus aberration — A photograph of Christmas lights with significant defocus aberration. v · d … Wikipedia
Shack-Hartmann — A Hartmann Shack or Shack Hartmann is a type of wavefront sensor. It is commonly used in adaptive optics systems. It consists of an array of lenses (called lenslets) of the same focal length. Each is focused onto a photon sensor (typically a CCD… … Wikipedia
optics — /op tiks/, n. (used with a sing. v.) the branch of physical science that deals with the properties and phenomena of both visible and invisible light and with vision. [1605 15; < ML optica < Gk optiká, n. use of neut. pl. of OPTIKÓS; see OPTIC,… … Universalium
microscope — /muy kreuh skohp /, n. 1. an optical instrument having a magnifying lens or a combination of lenses for inspecting objects too small to be seen or too small to be seen distinctly and in detail by the unaided eye. 2. (cap.) Astron. the… … Universalium
Transmission electron microscopy — A TEM image of the polio virus. The polio virus is 30 nm in size.[1] Transmission electron microscopy (TEM) is a microscopy technique whereby a beam of electrons is transmitted through an ultra thin specimen, interacting with the specimen as it… … Wikipedia
High-resolution transmission electron microscopy — (HRTEM) is an imaging mode of the transmission electron microscope (TEM) that allows the imaging of the crystallographic structure of a sample at an atomic scale. [cite book |title=Experimental high resolution electron microscopy |last=Spence… … Wikipedia
MICROSCOPIE — La révolution qui consiste, à la fin du XVIe siècle, à regarder «à la loupe» non plus directement un objet, mais son image agrandie est à l’origine de la microscopie. L’étymologie (du grec mikros , petit, et skopein , examiner) renvoie à l’examen … Encyclopédie Universelle
HRTEM — Microscopie électronique en transmission Pour les articles homonymes, voir Microscope. Schéma du faisceau d électrons dans un MET : 1 : colonne, 2 : source … Wikipédia en Français
Microscope électronique en transmission — Microscopie électronique en transmission Pour les articles homonymes, voir Microscope. Schéma du faisceau d électrons dans un MET : 1 : colonne, 2 : source … Wikipédia en Français
