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| In [[physics]], an '''atomic mirror''' is a device which [[Reflection (physics)|reflects]] neutral [[atoms]] in the similar way as the conventional mirror reflects [[visible light]]. Atomic mirrors can be made of [[electric field]]s or [[magnetic field]]s,<ref name="magnetic">{{cite journal
| | The title of the writer is Jayson. I've always loved residing in Kentucky but now I'm considering other options. Invoicing is what I do. I am truly fond of to go to karaoke but I've been using on new issues lately.<br><br>Also visit my blog post; certified psychics [[http://ltreme.com/index.php?do=/profile-127790/info/ ltreme.com]] |
| | author=H. Merimeche
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| | title=Atomic beam focusing with a curved magnetic mirror
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| | journal=[[Journal of Physics B]]
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| | volume=39 | issue=18 | pages=3723–3731
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| | year=2006
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| | doi=10.1088/0953-4075/39/18/002
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| |bibcode = 2006JPhB...39.3723M }}</ref> [[electromagnetic wave]]s<ref name="em">{{cite journal
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| | author=V. I. Balykin
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| | coauthors=V. S. Letokhov, Yu. B. Ovchinnikov, and A. I. Sidorov.
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| | title=Quantum-State-Selective Mirror Reflection of Atoms by Laser Light.
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| | journal=[[Physical Review Letters]]
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| | volume=60 | issue=21 | pages=2137–2140
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| | year=1988
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| | doi=10.1103/PhysRevLett.60.2137
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| | bibcode=1988PhRvL..60.2137B
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| }}</ref> or just [[silicon wafer]]; in the last case, atoms are reflected by the attracting tails of the van der Waals attraction (see [[quantum reflection]]).<ref name="Fri">
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| {{cite journal
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| |author=H. Friedrich
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| |coauthors=G. Jacoby, C. G. Meister
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| |title=quantum reflection by Casimir–van der Waals potential tails
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| |year=2002
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| |journal=[[Physical Review A]]
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| |volume=65 |issue=3 |page=032902
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| |doi=10.1103/PhysRevA.65.032902
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| |bibcode = 2002PhRvA..65c2902F }}</ref><ref name="shimizu01">{{cite journal
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| | author= F. Shimizu
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| | year=2001
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| | title=Specular Reflection of Very Slow Metastable Neon Atoms from a Solid Surface
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| | journal=[[Physical Review Letters]]
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| | volume=86 | issue=6 | pages=987–990
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| | doi=10.1103/PhysRevLett.86.987
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| | bibcode=2001PhRvL..86..987S
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| }}</ref><ref name="o1">{{cite journal
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| | author=H. Oberst
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| | coauthors=Y. Tashiro, K. Shimizu, F. Shimizu
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| | year=2005
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| | title=Quantum reflection of He* on silicon
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| | journal=[[Physical Review A]]
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| | volume=71 | issue=5 | page=052901
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| | doi=10.1103/PhysRevA.71.052901
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| |bibcode = 2005PhRvA..71e2901O }}</ref> Such reflection is efficient when the normal component of the wavenumber of the atoms is small or comparable to the effective depth of the attraction potential (roughly, the distance at which the potential becomes comparable to the kinetic energy of the atom). To reduce the normal component, most atomic mirrors are blazed at the [[grazing incidence]]. <!-- Original read "mirrors are ised at the grazing incidence". Feel free to fix it and remove this... -->
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| [[Image:Image-Ridged Mirror figureB.png|400px|right|thumb|Ridged mirror. The wave with wavevector <math>~\vec K~</math>
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| is scattered at ridges separated by distance <math>~L~</math>]]
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| At grazing incidence, the efficiency of the [[quantum reflection]] can be enhanced by a surface covered with ridges ([[ridged mirror]]).<ref name="sf">{{cite journal
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| | author= F. Shimizu
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| | coauthors=J. Fujita
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| | year=2002
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| | title=Giant Quantum Reflection of Neon Atoms from a Ridged Silicon Surface
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| | journal=[[Journal of the Physical Society of Japan]]
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| | volume=71 | pages=5–8
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| | doi=10.1143/JPSJ.71.5
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| |arxiv = physics/0111115 |bibcode = 2002JPSJ...71....5S }}</ref><ref name="zeno">{{cite journal
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| |comment=7
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| | author= D. Kouznetsov
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| | coauthors= H. Oberst
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| | year=2005
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| | title=Reflection of Waves from a Ridged Surface and the Zeno Effect
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| | journal=[[Optical Review]]
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| | volume=12 |issue=5 | pages=1605–1623
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| | doi=10.1007/s10043-005-0363-9
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| | bibcode=2005OptRv..12..363K
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| }}</ref><ref name="fres">
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| {{cite journal
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| | author= H. Oberst
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| | coauthors=D. Kouznetsov, K. Shimizu, J. Fujita, and F. Shimizu
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| | year=2005
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| | title=Fresnel Diffraction Mirror for an Atomic Wave
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| | journal=[[Physical Review Letters]]
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| | volume=94 | pages=013203
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| |doi=10.1103/PhysRevLett.94.013203
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| | bibcode=2005PhRvL..94a3203O
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| }}</ref><ref name="pra">{{cite journal
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| | author=D. Kouznetsov
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| | coauthors=H. Oberst
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| | year=2005
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| | title=Scattering of waves at ridged mirrors.
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| | url=http://www.ils.uec.ac.jp/~dima/PhysRevA_72_013617.pdf
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| | journal=[[Physical Review A]]
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| | volume=72 | pages=013617
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| | doi=10.1103/PhysRevA.72.013617
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| |bibcode = 2005PhRvA..72a3617K }}</ref>
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| The set of narrow ridges reduces the [[van der Waals force|van der Waals]] attraction of atoms to the surfaces and enhances the reflection. Each ridge blocks part of the wavefront, causing [[Fresnel diffraction]].<ref name="fres"/>
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| Such a mirror can be interpreted in terms of the [[Zeno effect]].<ref name="zeno">
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| {{cite journal
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| |comment=7
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| | author= D.Kouznetsov
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| | coauthors= H.Oberst
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| | title=Reflection of Waves from a Ridged Surface and the Zeno Effect
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| | journal=[[Optical Review]]
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| | volume=12 |issue=5 | pages=1605–1623
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| | year=200
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| | doi=10.1007/s10043-005-0363-9
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| | bibcode=2005OptRv..12..363K
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| }}</ref> We may assume that the atom is "absorbed" or "measured" at the ridges. Frequent measuring (narrowly-spaced ridges) suppresses the transition of the particle to the half-space with absorbers, causing [[specular reflection]]. At large separation <math>~L~</math> between thin ridges, the reflectivity of the [[ridged mirror]] is determined by dimensionless momentum <math>~p=\sqrt{KL~}~\theta~</math>, and does not depend on the origin of the wave; therefore, it is suitable for reflection of atoms.
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| ==Applications==
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| *Atomic [[interferometry]]
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| ==See also==
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| *[[Quantum reflection]]
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| *[[Ridged mirror]]
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| *[[Zeno effect]]
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| *[[Atomic nanoscope]]
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| *[[Atom laser]]
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| ==References==
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| {{reflist}}
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| [[Category:Atomic, molecular, and optical physics]]
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The title of the writer is Jayson. I've always loved residing in Kentucky but now I'm considering other options. Invoicing is what I do. I am truly fond of to go to karaoke but I've been using on new issues lately.
Also visit my blog post; certified psychics [ltreme.com]