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| HAL : in2p3-00708756, version 1 |
| arXiv : 1008.0795 |
| Code Bibliographique ADS : 2010PhRvL.105w1102G |
| DOI : 10.1103/PhysRevLett.105.231102 |
| Fiche détaillée |  Récupérer au format |
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| Physical Review Letters 105 (2010) 231102 |
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| Higher-Order Laguerre-Gauss Mode Generation and Interferometry for Gravitational Wave Detectors |
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| M. Granata1C. Buy1R.L. Ward1M. Barsuglia1 |
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| VIRGO Collaboration(s) |
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| (12/2010) |
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| We report on the first experimental demonstration of higher-order Laguerre-Gauss (LGpℓ) mode generation and interferometry using a method scalable to the requirements of gravitational wave (GW) detection. GW detectors which use higher-order LGpℓ modes will be less susceptible to mirror thermal noise, which is expected to limit the sensitivity of all currently planned terrestrial detectors. We used a diffractive optic and a mode-cleaner cavity to convert a fundamental LG00 Gaussian beam into an LG33 mode with a purity of 98%. The ratio between the power of the LG00 mode of our laser and the power of the LG33 transmitted by the cavity was 36%. By measuring the transmission of our setup using the LG00, we inferred that the conversion efficiency specific to the LG33 mode was 49%. We illuminated a Michelson interferometer with the LG33 beam and achieved a visibility of 97%. |
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| 1 : | APC - AstroParticule et Cosmologie |
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| APC - Cosmologie et Gravitation |
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| Thème(s) | : | Physique/Astrophysique/Instrumentation et méthodes pour l'astrophysique Planète et Univers/Astrophysique/Instrumentation et méthodes pour l'astrophysique |
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| Gravitational wave detectors and experiments – Diffraction and scattering – Resonators – cavities – amplifiers – arrays – and rings – Beam characteristics: profile – intensity – and power – spatial pattern formation |
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| Lien vers le texte intégral : |
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| http://fr.arXiv.org/abs/1008.0795 |
| in2p3-00708756, version 1 | |
| http://hal.in2p3.fr/in2p3-00708756 | |
| oai:hal.in2p3.fr:in2p3-00708756 | |
| Contributeur : Christelle Buy | |
| Soumis le : Vendredi 15 Juin 2012, 16:14:26 | |
| Dernière modification le : Samedi 16 Juin 2012, 18:19:11 | |
