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  2. Doppler cooling - Wikipedia

    en.wikipedia.org/wiki/Doppler_cooling

    An atom moving away from the laser sees it red-shifted and does not absorb the photon. 3.1 : An atom moving towards the laser sees it blue-shifted and absorbs the photon, slowing the atom. 3.2 : The photon excites the atom, moving an electron to a higher quantum state. 3.3: The atom re-emits a photon.

  3. Optical Manipulation of Atoms - Wikipedia

    en.wikipedia.org/wiki/Optical_Manipulation_of_Atoms

    Within this state, all the atoms composing the condensate converge into a single quantum state with macroscopic quantum coherence and behave as a unified, wave-like entity. One way to manipulate a BEC is by subjecting it to a standing light wave, which is formed by two counter-propagating laser beams. The frequency of these lasers is carefully ...

  4. A Boy and His Atom - Wikipedia

    en.wikipedia.org/wiki/A_Boy_and_His_Atom

    A Boy and His Atom is a 2013 stop-motion animated short film released on YouTube by IBM Research.One minute in length, it was made by moving carbon monoxide molecules with a scanning tunneling microscope, a device that magnifies them 100 million times.

  5. Wikipedia : Featured picture candidates/Atomic-resolution ...

    en.wikipedia.org/wiki/Wikipedia:Featured_picture...

    The individual atoms composing the material are visible. Surface reconstruction causes the surface atoms to deviate from the bulk crystal structure, and arrange in columns several atoms wide with regularly-spaced pits between them. Edit 1 Reason This is an outstanding image because it shows the individual atoms that make up a gold surface.

  6. Atom optics - Wikipedia

    en.wikipedia.org/wiki/Atom_optics

    Interference of atom matter waves was first observed by Esterman and Stern in 1930, when a Na beam was diffracted off a surface of NaCl. [7] The short de Broglie wavelength of atoms prevented progress for many years until two technological breakthroughs revived interest: microlithography allowing precise small devices and laser cooling allowing atoms to be slowed, increasing their de Broglie ...

  7. The most moving photos of 2015 - AOL

    www.aol.com/article/2015/12/21/the-most-moving...

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  8. Franck–Hertz experiment - Wikipedia

    en.wikipedia.org/wiki/Franck–Hertz_experiment

    Franck and Hertz explained their experiment in terms of elastic and inelastic collisions between the electrons and the mercury atoms. [1] [2] Slowly moving electrons collide elastically with the mercury atoms. This means that the direction in which the electron is moving is altered by the collision, but its speed is unchanged.

  9. IBM (atoms) - Wikipedia

    en.wikipedia.org/wiki/IBM_(atoms)

    "IBM" spelled out using 35 xenon atoms. IBM in atoms was a demonstration by IBM scientists in 1989 of a technology capable of manipulating individual atoms. [1] A scanning tunneling microscope was used to arrange 35 individual xenon atoms on a substrate of chilled crystal of nickel to spell out the three letter company initialism. It was the ...