Atom optics

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Atom optics (or atomic optics) "refers to techniques to manipulate the trajectories and exploit the wave properties of neutral atoms". [1] Typical experiments employ beams of cold, slowly moving neutral atoms, as a special case of a particle beam. Like an optical beam, the atomic beam may exhibit diffraction and interference, and can be focused with a Fresnel zone plate [2] or a concave atomic mirror. [3]

Contents

For comprehensive overviews of atom optics, see the 1994 review by Adams, Sigel, and Mlynek [1] or the 2009 review by Cronin, Jörg, and Pritchard. [4] More bibliography about Atom Optics can be found in the 2017 Resource Letter in the American Journal of Physics. [5] For quantum atom optics see the 2018 review by Pezzè et al. [6]

History

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 wavelength. [1]

Until 2006, the resolution of imaging systems based on atomic beams was not better than that of an optical microscope, mainly due to the poor performance of the focusing elements. Such elements use small numerical aperture; usually, atomic mirrors use grazing incidence, and the reflectivity drops drastically with increase of the grazing angle; for efficient normal reflection, atoms should be ultracold, and dealing with such atoms usually involves magnetic, magneto-optical or optical traps.

At the beginning of the 21st century scientific publications about "atom nano-optics", evanescent field lenses [8] and ridged mirrors [9] [10] showed significant improvement. [11] In particular, an atomic hologram can be realized. [12]

See also

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References

  1. 1 2 3 Adams, C.S; Sigel, M; Mlynek, J (1994). "Atom optics". Physics Reports. Elsevier BV. 240 (3): 143–210. doi: 10.1016/0370-1573(94)90066-3 . ISSN   0370-1573.
  2. ↑ R.B.Doak; R.E.Grisenti; S.Rehbein; G.Schmahl; J.P.Toennies; Ch. Wöll (1999). "Towards Realization of an Atomic de Broglie Microscope: Helium Atom Focusing Using Fresnel Zone Plates" (PDF). Physical Review Letters . 83 (21): 4229–4232. Bibcode:1999PhRvL..83.4229D. doi:10.1103/PhysRevLett.83.4229. Archived from the original (PDF) on 2011-09-29. Retrieved 12 March 2024.
  3. ↑ J.J.Berkhout; O.J.Luiten; I.D.Setija; T.W.Hijmans; T.Mizusaki; J.T.M.Walraven (1989). "Quantum reflection: Focusing of hydrogen atoms with a concave mirror" (PDF). Physical Review Letters . 63 (16): 1689–1692. Bibcode:1989PhRvL..63.1689B. doi:10.1103/PhysRevLett.63.1689. PMID   10040645.
  4. ↑ Cronin, Alexander D.; Jörg Schmiedmayer; David E. Pritchard (2009). "Optics and interferometry with atoms and molecules" (PDF). Reviews of Modern Physics . 81 (3): 1051. arXiv: 0712.3703 . Bibcode:2009RvMP...81.1051C. doi:10.1103/RevModPhys.81.1051. hdl:1721.1/52372. S2CID   28009912. Archived from the original (PDF) on 2011-07-19.
  5. ↑ Rohwedder, B. (2007). "Resource Letter AON-1: Atom optics, a tool for nanofabrication". American Journal of Physics. 75 (5): 394–406. Bibcode:2007AmJPh..75..394R. doi:10.1119/1.2673209.
  6. ↑ Pezzè, Luca; Smerzi, Augusto; Oberthaler, Markus K.; Schmied, Roman; Treutlein, Philipp (2018-09-05). "Quantum metrology with nonclassical states of atomic ensembles". Reviews of Modern Physics. American Physical Society (APS). 90 (3): 035005. arXiv: 1609.01609 . doi:10.1103/revmodphys.90.035005. ISSN   0034-6861. S2CID   119250709.
  7. ↑ Estermann, I.; Stern, Otto (1930). "Beugung von Molekularstrahlen". Z. Phys. 61 (1–2): 95. Bibcode:1930ZPhy...61...95E. doi:10.1007/bf01340293. S2CID   121757478.
  8. ↑ Balykin, Victor; Klimov, Vasili; Letokhov, Vlasilen (March 2005). "Atom Nano-Optics". Optics and Photonics News : 44–48.
  9. ↑ H.Oberst; D.Kouznetsov; K.Shimizu; J.Fujita; F. Shimizu (2005). "Fresnel Diffraction Mirror for an Atomic Wave". Physical Review Letters . 94 (1): 013203. Bibcode:2005PhRvL..94a3203O. doi:10.1103/PhysRevLett.94.013203. hdl: 2241/104208 . PMID   15698079.
  10. ↑ D.Kouznetsov; H. Oberst; K. Shimizu; A. Neumann; Y. Kuznetsova; J.-F. Bisson; K. Ueda; S. R. J. Brueck (2006). "Ridged atomic mirrors and atomic nanoscope". Journal of Physics B . 39 (7): 1605–1623. Bibcode:2006JPhB...39.1605K. CiteSeerX   10.1.1.172.7872 . doi:10.1088/0953-4075/39/7/005. S2CID   16653364.
  11. ↑ F, Schmidt-Kaler; T Pfau; P Schmelcher; W Schleich (2010). "Focus on Atom Optics and its Applications". New Journal of Physics . 12 (6): 065014. Bibcode:2010NJPh...12f5014S. doi: 10.1088/1367-2630/12/6/065014 .
  12. ↑ Shimizu; J. Fujita (2002). "Reflection-Type Hologram for Atoms". Physical Review Letters . 88 (12): 123201. Bibcode:2002PhRvL..88l3201S. doi:10.1103/PhysRevLett.88.123201. PMID   11909457.

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