Experimental measurement of the dynamic photothermal effect in Fabry-Perot cavities for gravitational wave detectors

被引：38

作者：

De Rosa, M

Conti, L

Cerdonio, M

Pinard, M

Marin, F

机构：

[1] Univ Florence, Dipartimento Fis, Ist Nazl Fis Nucl, Sez Firenze, I-50019 Sesto Fiorentino, FI, Italy

[2] LENS, I-50019 Sesto Fiorentino, FI, Italy

[3] Univ Padua, Dipartimento Fis, I-35131 Padua, Italy

[4] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy

[5] Lab Kastler Brossel, F-75252 Paris, France

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.89.237402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the experimental observation of the frequency dependence of the photothermal effect. The measurements are performed by modulating the laser power absorbed by the mirrors of two high-finesse Fabry-Perot cavities. The results are very well described by a recently proposed theoretical model [M. Cerdonio, L. Conti, A. Heidmann, and M. Pinard, Phys. Rev. D 63, 082003 (2001)], confirming the correctness of such calculations. Our observations and quantitative characterization of the dynamic photothermal effect demonstrate its critical importance for interferometric displacement measurements towards the quantum limit, as those necessary for gravitational wave detection.

引用

页数：4

共 16 条

[1] Optical bistability induced by mirror absorption: measurement of absorption coefficients at the sub-ppm level [J].