Colloidal systems in intense, two-dimensional laser fields

被引：3

作者：

Brunner, M ^{[1
]}

Bechinger, C ^{[1
]}

机构：

[1] Univ Konstanz, Dept Phys, D-78457 Constance, Germany

来源：

TRENDS IN COLLOID AND INTERFACE SCIENCE XVI | 2004年 / 123卷

关键词：

colloids; two-dimensional phase transitions; optical tweezers;

D O I：

10.1007/b11751

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The properties of two-dimensional (2D) colloidal systems in the presence of a strong laser field are studied. By interfering three laser beams we obtain a 2D laser field, which acts as an artificial substrate potential to the particles. In contrast to topographical substrate potentials, the use of a light potential allows changes in the potential strength and the periodicity of the substrate potential continuously. We report first results on charge stabilised polystyrene particles on a triangular light potential.

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页码：156 / 159

页数：4

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