Quasiperiodic Fresnel atom optics, focusing, and the quasi-Talbot effect

被引：11

作者：

Cohen, JL ^{[1
]}

Dubetsky, B ^{[1
]}

Berman, PR ^{[1
]}

机构：

[1] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA

来源：

PHYSICAL REVIEW A | 1999年 / 60卷 / 05期

关键词：

D O I：

10.1103/PhysRevA.60.3982

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a laser field configuration that acts as a quasiperiodic atom optical diffraction grating. Exact analytical results for the atomic center-of-mass wave function in the Fresnel region after the grating reveal a quasiperiodic density pattern, a semiclassical focusing effect, and a quasiperiodic self-imaging of the atomic wave function analogous to a Talbot effect. The high-contrast quasiperiodic pattern that forms at the focal plane survives both transverse and longitudinal velocity averaging. The quasi-Talbot effect should be observable using atoms from Bose-Einstein condensates. [S1050-2947(99)00111-0].

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页码：3982 / 3989

页数：8

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