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| HAL: hal-00154512, version 1 |
| arXiv: 0706.2036 |
| DOI: 10.1103/PhysRevLett.99.110801 |
| Detailed view |  Export this paper |
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| Physical Review Letters 99 (2007) 110801 |
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| Observation of back-action cancellation in interferometric and weak force measurements |
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| T. Caniard 1P. Verlot 1 |
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| (2007) |
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| We experimentally demonstrate a cancellation of back-action noise in optical measurements. Back-action cancellation was first proposed within the framework of gravitational-wave detection by dual resonators as a way to drastically improve their sensitivity. We have developed an experiment based on a high-finesse Fabry-Perot cavity to study radiation-pressure effects in ultra-sensitive displacement measurements. Using an intensity-modulated intracavity field to mimic the quantum radiation-pressure noise, we report the first observation of back-action cancellation due to a destructive interference between radiation-pressure effects on both mirrors of the cavity. We have observed a sensitivity improvement by a factor larger than 20 both in displacement and weak force measurements. |
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| 1: | Laboratoire Kastler Brossel (LKB (Jussieu)) |
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CNRS : UMR8552 – Université Paris VI - Pierre et Marie Curie – Ecole Normale Supérieure de Paris - ENS Paris |
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| Subject | : | Physics/Quantum Physics Physics/General Relativity and Quantum Cosmology |
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| hal-00154512, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00154512 | |
| oai:hal.archives-ouvertes.fr:hal-00154512 | |
| From: Antoine Heidmann | |
| Submitted on: Wednesday, 13 June 2007 21:55:49 | |
| Updated on: Wednesday, 19 September 2007 14:39:17 | |
