Polarizability measurements of a molecule via a near-field matter-wave interferometer

被引：64

作者：

Berninger, Martin ^{[1
]}

Stefanov, Andre ^{[1
]}

Deachapunya, Sarayut ^{[1
]}

Arndt, Markus ^{[1
]}

机构：

[1] Univ Vienna, Fak Phys, A-1090 Vienna, Austria

来源：

PHYSICAL REVIEW A | 2007年 / 76卷 / 01期

关键词：

D O I：

10.1103/PhysRevA.76.013607

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a method for measuring the scalar polarizability of molecules by means of near-field matter-wave interferometry. This technique is applicable to a wide range of complex neutral molecules. A key feature of our experiment is the combination of good transmission and high spatial resolution, gained by imprinting a submicrometer spatial modulation onto a wide molecular beam. Our method significantly improves the measurement sensitivity of the polarizability-dependent shifts. We have successfully performed measurements on fullerenes and report the polarizability to be alpha=88.9 +/- 0.9 +/- 5.1 angstrom(3) for C-60 and alpha=108.5 +/- 2.0 +/- 6.2 angstrom(3) for C-70.

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页数：4

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