An ellipsoidal mirror for focusing neutral atomic and molecular beams

被引：27

作者：

Fladischer, K. ^{[1
]}

Reingruber, H. ^{[1
]}

Reisinger, T. ^{[1
,2
]}

Mayrhofer, V. ^{[1
]}

Ernst, W. E. ^{[1
]}

Ross, A. E. ^{[3
]}

MacLaren, D. A. ^{[3
]}

Allison, W. ^{[3
]}

Litwin, D. ^{[4
]}

Galas, J. ^{[4
]}

Sitarek, S. ^{[4
]}

Nieto, P. ^{[5
]}

Barredo, D. ^{[5
]}

Farias, D. ^{[5
]}

Miranda, R. ^{[5
,6
]}

Surma, B. ^{[7
]}

Miros, A. ^{[7
]}

Piatkowski, B. ^{[7
]}

Sondergard, E. ^{[8
]}

Holst, B. ^{[1
,2
]}

机构：

[1] Graz Univ Technol, Inst Expt Phys, A-8010 Graz, Austria

[2] Univ Bergen, Dept Phys & Technol, N-5007 Bergen, Norway

[3] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

[4] Inst Appl Opt INOS, PL-03805 Warsaw, Poland

[5] Univ Autonoma Madrid, Dept Fis Mat Condensada C3, E-28049 Madrid, Spain

[6] IMDEA Nanociencia, Madrid 28049, Spain

[7] Inst Elect Mat Technol ITME, PL-01919 Warsaw, Poland

[8] CNRS St Gobain, UMR 125, Lab Surface & Interface Verre, F-93303 Aubervilliers, France

来源：

NEW JOURNAL OF PHYSICS | 2010年 / 12卷

关键词：

HELIUM; PROFILOMETRY; DIFFRACTION; REALIZATION; MICROSCOPE; DESIGN; AFM; HE;

D O I：

10.1088/1367-2630/12/3/033018

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Manipulation of atomic and molecular beams is essential to atom optics applications including atom lasers, atom lithography, atom interferometry and neutral atom microscopy. The manipulation of charge-neutral beams of limited polarizability, spin or excitation states remains problematic, but may be overcome by the development of novel diffractive or reflective optical elements. In this paper, we present the first experimental demonstration of atom focusing using an ellipsoidal mirror. The ellipsoidal mirror enables stigmatic off-axis focusing for the first time and we demonstrate focusing of a beam of neutral, ground-state helium atoms down to an approximately circular spot, (26.8 +/- 0.5) mu m x (31.4 +/- 0.8) mu m in size. The spot area is two orders of magnitude smaller than previous reflective focusing of atomic beams and is a critical milestone towards the construction of a high-intensity scanning helium microscope.

引用

页数：10

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