High-sensitivity optical measurement of mechanical Brownian motion

被引：90

作者：

Hadjar, Y

Cohadon, PF

Aminoff, CG

Pinard, M

Heidmann, A

机构：

[1] Univ Paris 06, Lab Kastler Brossel, F-75252 Paris 05, France

[2] Helsinki Univ Technol, Dept Engn Math & Phys, Espoo 02015, Finland

来源：

EUROPHYSICS LETTERS | 1999年 / 47卷 / 05期

关键词：

D O I：

10.1209/epl/i1999-00422-6

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We describe an experiment in which a laser beam is sent into a high-finesse optical cavity with a mirror coated on a mechanical resonator. We show that the reflected light is very sensitive to small mirror displacements. We have observed the Brownian motion of the resonator with a very high sensitivity corresponding to a minimum observable displacement of 2 x 10(-19) m/root Hz.

引用

页码：545 / 551

页数：7

共 21 条

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