Physics:Atomic beam
Atomic beam is special case of particle beam; it is the collimated flux (beam) of neutral atoms. The imaging systems using the slow atomic beams can use the Fresnel zone plate (Fresnel diffraction lens) of a Fresnel diffraction mirror as focusing element. The imaging system with atomic beam could provide the sub-micrometre resolution.
History
In 1911, Louis Dunoyer observed sodium vapor 'rays' in a vacuum chamber.[1] Learning from that experience, Otto Stern worked with Walther Gerlach to produce silver atom beams for their historic Stern–Gerlach experiment, providing the first evidence of atomic scale quantization.
In 1930, Immanuel Estermann and Stern[2] reflected a helium beam from lithium fluoride observing the first atomic matter wave diffraction peaks in the reflected intensity.[3]
References
- ↑ Friedrich, Bretislav, and Dudley Herschbach. "Stern and Gerlach: How a bad cigar helped reorient atomic physics." Physics Today 56.12 (2003): 53-59.
- ↑ Estermann, Immanuel, and Otto Stern. "Beugung von molekularstrahlen." Zeitschrift für Physik 61.1-2 (1930): 95-125.
- ↑ Cronin, Alexander D.; Jörg Schmiedmayer; David E. Pritchard (2009). "Optics and interferometry with atoms and molecules". Reviews of Modern Physics 81 (3): 1051. doi:10.1103/RevModPhys.81.1051. Bibcode: 2009RvMP...81.1051C. http://www.atomwave.org/rmparticle/RMPLAO.pdf..
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