Phys. Rev. Lett. 71, 2405–2408 (1993)Focusing a beam of ultracold spin-polarized hydrogen atoms with a helium-film-coated quasiparabolic mirrorReceived 7 January 1993; published in the issue dated 11 October 1993 We formed the first ‘‘atomic-optics’’ beam of electron-spin-polarized hydrogen atoms using a quasiparabolic polished copper mirror coated with a hydrogen-atom-reflecting film of superfluid 4He. The mirror was located in the gradient of an 8-T solenoidal magnetic field and mounted on an ultracold cell at 350 mK. After the focusing by the mirror surface, the beam was again focused with a sextupole magnet. The mirror, which was especially designed for operation in the magnetic field gradient of our solenoid, increased the focused beam intensity by a factor of about 7.5. © 1993 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.71.2405
DOI:
10.1103/PhysRevLett.71.2405
PACS:
29.25.Pj, 34.30.+h, 67.70.+n
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