Experimental measurement of the dynamic photothermal effect in Fabry-Perot cavities for gravitational wave detectors.
作者： M. De Rosa , L. Conti , M. Cerdonio , M. Pinard , F. Marin
DOI: 10.1103/PHYSREVLETT.89.237402
关键词: Interferometry 、 Fabry–Pérot interferometer 、 Physics 、 Optics 、 Gravitational wave 、 Detector 、 Quantum limit 、 Displacement (vector) 、 Laser power scaling 、 Photothermal effect
摘要: We report the experimental observation of frequency dependence photothermal effect. The measurements are performed by modulating laser power absorbed mirrors two high-finesse Fabry-Perot cavities. results very well described a recently proposed theoretical model [M. Cerdonio, L. Conti, A. Heidmann, and M. Pinard, Phys. Rev. D 63, 082003 (2001)]], confirming correctness such calculations. Our observations quantitative characterization dynamic effect demonstrate its critical importance for interferometric displacement towards quantum limit, as those necessary gravitational wave detection.
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