LASER-INDUCED FORCE FOR BUBBLE-TRAPPING IN LIQUIDS

被引：9

作者：

MARCANO, A

ARANGUREN, L

机构：

[1] Centro de Física, Instituto Venezolano de Investigaciones Científicas, Apartado, 21827

来源：

APPLIED PHYSICS B-PHOTOPHYSICS AND LASER CHEMISTRY | 1993年 / 56卷 / 06期

关键词：

42.55.Mv; 42.65.Jx; 47.55.Bx;

D O I：

10.1007/BF00324530

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The laser-induced thermal force that traps a bubble in an absorbing liquid is studied theoretically and experimentally. The force origins from the thermal gradients of the surface tension induced by a laser beam over the bubble surface. It is shown that this force is proportional to the square of the bubble radius and to the thermal gradient of the surface tension. A simple experimental method based on comparison with the Archimedes' flotation force, is used for the measurement of this force. The experimental results, performed on ethanol solutions of iodine, confirm the theoretical predictions.

引用

页码：343 / 346

页数：4