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Thermal noise reduction in interferometric gravitational wave antennas: using high order TEM modes

B. Mours 1 E. Tournefier 1 J.Y. Vinet 2
1 LAPP - Laboratoire d'Annecy de Physique des Particules
2 ARTEMIS - Astrophysique Relativiste Théories Expériences Métrologie Instrumentation Signaux
Abstract : We compute the low-frequency tail of the power spectral density of thermal noise in the case of an optical Fabry–Perot resonant cavity operating with Laguerre–Gauss modes of orders higher than (0, 0). We show a significant reduction of the thermal noise as the order of the mode increases. We discuss the diffraction losses.
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http://hal.in2p3.fr/in2p3-00379138
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Submitted on : Monday, April 27, 2009 - 4:50:44 PM
Last modification on : Friday, November 6, 2020 - 3:33:18 AM

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B. Mours, E. Tournefier, J.Y. Vinet. Thermal noise reduction in interferometric gravitational wave antennas: using high order TEM modes. Classical and Quantum Gravity, IOP Publishing, 2006, 23, pp.5777-5784. ⟨10.1088/0264-9381/23/20/001⟩. ⟨in2p3-00379138⟩

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