'Mechanical loss' diaporamas de présentation

Resonant Mass Gravitational Wave Detectors David Blair University of Western Australia

Resonant Mass Gravitational Wave Detectors David Blair University of Western Australia. Historical Introduction Intrinsic Noise in Resonant Mass Antennas Transducers Transducer-Antenna interaction effects Suspension and Isolation Data Analysis. Sources and Materials.

867 views • 65 slides

Piezoelectric ceramics

Piezoelectric ceramics. Direct effect. F. Q. +. F. P. Q. -. +. F. P. -. Contraction. Expansion. F. Piezoelectricity In a conventional solid, a mechanical stress X causes a proportional elastic strain x X = C x C : elastic modulus

2.32k views • 45 slides

Developing the TiO 2 /SiO 2 mixed films for low optical loss dielectric mirror --- A retrospect

Developing the TiO 2 /SiO 2 mixed films for low optical loss dielectric mirror --- A retrospect. Prof. Shiuh Chao Institute of Photonics Technologies National Tsing Hua University Taiwan, R.O.C. LIGO-G1000746. R eflection. S cattering. A bsorption. T ransmittion. 1=R+T+S+A

615 views • 37 slides

Windings For Permanent Magnet Machines Yao Duan, R. G. Harley and T. G. Habetler Georgia Institute of Technology

Windings For Permanent Magnet Machines Yao Duan, R. G. Harley and T. G. Habetler Georgia Institute of Technology. OUTLINE. Introduction Overall Design Procedure Analytical Design Model Optimization Comparison Conclusions. Introduction.

1.3k views • 30 slides

Optical Coating Development for the Advanced LIGO Gravitational Wave Antennas

Optical Coating Development for the Advanced LIGO Gravitational Wave Antennas. Gregory Harry LIGO/MIT - On Behalf of the Coating Working Group -. University of Sannio at Benevento October 9, 2006 Benevento, Italy LIGO-G060506-00-R. Gravitational Wave Detection.

401 views • 30 slides

Advanced LIGO Optics Status Report Dave Reitze University of Florida

Advanced LIGO Optics Status Report Dave Reitze University of Florida for the Core Optics Working Group. Main Efforts of the Core Optics WG. Sapphire test mass R&D Focus has moved to characteristics of AdLIGO-sized substrates Beginning to understand asymptotic limits of performance ?

583 views • 24 slides

Optics related research for interferometric gravitational wave detectors

Optics related research for interferometric gravitational wave detectors. S. Rowan for the Optics working group of the LIGO Scientific Collaboration SUPA, Institute for Gravitational Research, University of Glasgow, Glasgow UK. 58 th Fujihara Seminar, 28 th May 2009.

354 views • 24 slides

Substrate mechanical loss studies

Substrate mechanical loss studies. Sheila Rowan (Stanford University) for: LIGO Laboratory (Caltech, MIT, LLO, LHO) LSC Partners (University of Glasgow, Syracuse University, Stanford University, Moscow State University, Iowa State University) (also relevant work from TAMA project).

334 views • 18 slides

Modeling of fused silica optics and coatings

Modeling of fused silica optics and coatings . Hai-Ping Cheng Department of Physics and Quantum Theory Project, University of Florida, Gainesville FL 32611 LSC meeting July 23-26 2007 MIT LIGO-G070567-00-Z Acknowledgment: NSF/KDI-ITR Program and DOE/NERSC

398 views • 17 slides

An overview on ET-WP2 activities in Glasgow

An overview on ET-WP2 activities in Glasgow. R. Nawrodt, A. Cumming, W. Cunningham, J. Hough, I. Martin, S. Reid, S. Rowan ET-WP2 Workshop, Genoa/Italy 15 th September 2009. Content. design study report mirror thermal noise calculation size estimate of the mirror novel concept:

176 views • 17 slides

Overview of Research in the Optics Working Group

165 views • 16 slides

Mechanical Losses of Coatings for use in Advanced Gravitational Wave Detectors

Mechanical Losses of Coatings for use in Advanced Gravitational Wave Detectors. Peter Murray. Collaborators. P. Murray , S. Reid, E. Chalkley, D. Crooks, J. Hough, S. Rowan University of Glasgow M.M. Fejer, R. Route Stanford University

302 views • 15 slides

LIGO Coating Project

LIGO Coating Project. Gregory Harry LIGO/MIT - On Behalf of the Coating Working Group -. LIGO/Virgo Thermal Noise Workshop October 7, 2006 Pisa, Italy LIGO-G060504-00-R. Advanced LIGO Sensitivity. Need a lower thermal noise coating Not much in literature on coating mechanical loss

398 views • 14 slides

New coatings on new substrates for low mechanical loss mirrors

New coatings on new substrates for low mechanical loss mirrors. 1. Mechanical loss measurement bench 2. New high index coating materials 3. New substrates. Task M4. New coatings on new substrates for low mechanical loss mirrors.

262 views • 13 slides

Main Efforts of the Core Optics WG

Main Efforts of the Core Optics WG. Sapphire test mass R&D Focus has moved to characteristics of AdLIGO-sized substrates Beginning to understand asymptotic limits of performance ? Fused silica test mass R&D Interest has rekindled based on recent high Q results

209 views • 12 slides

Progress in LIGO Coating Development

Progress in LIGO Coating Development. Gregory Harry Massachusetts Institute of Technology - LIGO Laboratory -. March 21, 2008 Coating Workshop - Caltech. G080086-00-R. S x (f) = 2 k B T / ( p 2 f 2 ) W diss /F 0 2. f = 1 / ? p (d/w) (Y coat /Y sub f coat || + Y sub /Y coat f coat ? ).

253 views • 12 slides

Investigation of mechanical losses of 3 rd generation gravitational wave detector materials

203 views • 10 slides

Optical Coatings R&D Status

Optical Coatings R&D Status. Gregory Harry Massachusetts Institute of Technology - On Behalf of the Coating Working Group -. August, 2004 LSC Meeting Hanford LIGO-G040330-00-R. Reminder of Coating Thermal Noise. Sapphire Mirrors 165 Mpc BNS Range. Silica Mirrors 140 Mpc BNS Range.

108 views • 10 slides

Coating thermal noise

Coating thermal noise. S. Reid, I. Martin, J. Hough, S. Rowan Univ. of Glasgow M.M. Fejer, R. Route Stanford University A. Remillieux, J.M. Mackowski, C. Comtet, N. Morgado L. Pinard, Ch. Michel LMA, Lyon G. Harry LIGO MIT H. Armandula, LIGO Caltech S. Penn,

170 views • 8 slides