logging in or signing up Cornell2 Shariyar Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 186 Category: Entertainment License: All Rights Reserved Like it (0) Dislike it (0) Added: June 15, 2007 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript A new family of flat-topped beams interesting for future LIGO interferometers: A new family of flat-topped beams interesting for future LIGO interferometers Mihai Bondarescu California Institute of Technology Collaborators and Consultants: Collaborators and Consultants K. Thorne (Caltech) Pavlin Savov (Caltech) Erika D’Ambrosio (Caltech) S. Vyatchanin (MSU, Moscow) S. Strigin (MSU, Moscow) R. O’Shaughnessy (NWU, Chicago) P. Kazarian (GCC) Slide3: International Network of Interferometric Detectors: International Network of Interferometric Detectors Network Required for: Detection Confidence Waveform Extraction Direction by Triangulation LIGO Hanford, WA LIGO Livingston, LA GEO600 Hanover Germany TAMA300 Tokyo VIRGO Pisa, Italy Slide adapted from a talk by Kip LIGO : LIGO Collaboration of ~350 scientists at ~30 institutions Hanford Washington Slide adapted from a talk by Kip Slide6: Livingston, Louisiana Slide adapted from a talk by Kip LIGO’s International Partners: LIGO’s International Partners Slide adapted from a talk by Kip How a LIGO Interferometer Works: How a LIGO Interferometer Works Fabry-Perot Cavity Fabry-Perot Cavity Beam Splitter Slide adapted from a talk by Kip Slide9: Slide adapted from Rejean J Dupuis talk from http://www.ligo.org/results/ Noise in LIGO : Noise in LIGO Adopted from Kip’s Talk (LIGO-G030137-00-Z) What is Thermoelastic Noise and How to Reduce It?: What is Thermoelastic Noise and How to Reduce It? Random Thermal Fluctuations (~0.5 mm) Hot Regions Expand; Cold Contract Beam Intensity Averages Over Mirror Surface Imperfect Averaging = Thermoelastic Noise Gaussian Beam Slide from a talk prepared by Pavlin Savov for PCGM What is Thermoelastic Noise and How to Reduce It?: What is Thermoelastic Noise and How to Reduce It? Random Thermal Fluctuations (~0.5 mm) Hot Regions Expand; Cold Contract Beam Intensity Averages Over Mirror Surface Imperfect Averaging = Thermoelastic Noise Mesa Beam Slide from a talk prepared by Pavlin Savov for PCGM Building a MESA beam: Building a MESA beam Minimal Gaussian Building a MESA beam: Building a MESA beam Minimal Gaussian Building a MESA beam: Building a MESA beam Minimal Gaussian Building a MESA beam: Building a MESA beam Minimal Gaussians Building a MESA beam: Building a MESA beam Mesa Flat and Concentric Configurations: Flat and Concentric Configurations (O’Shaugnessy, Thorne) (Bondarescu, Kazarian,Savov) Flat and Concentric Configurations: Flat and Concentric Configurations (O’Shaugnessy, Thorne) (Bondarescu, Kazarian,Savov) My proposal: My proposal Mirror Overlap minimal Gaussians centered on these lines What’s different?: What’s different? Surfaces of constant phase Mimimal Gausian’s axis What’s different?: What’s different? Flat Mirrors Confocal Mirros D Mesa Beams Comparison: Mesa Beams Comparison Mexican-Hat Mirrors’ Corrections: Mexican-Hat Mirrors’ Corrections Tilt Instability: Tilt Instability Reduce Thermoelastic Noise Evaluate Tilt Instability for New Mirrors’ Shapes Compare to Conventional Spherical Mirrors Fabry-Perot Cavity The Eigenvalue Problem: The Eigenvalue Problem Mesa Beam Profiles: Mesa Beam Profiles Flat-Concentric MB Comparison: Flat-Concentric MB Comparison Eigenstates Comparison Eigenvalues Comparison Again Flat-Concentric Configurations Relation: Again Flat-Concentric Configurations Relation (Yanbei Chen) G=1-L/R Results and Conclusions: Results and Conclusions Thermoelastic Noise (O,Shaughnessy, Strigin, Vyatchanin) Tilt Instability (Mode Mixing) Nearly Flat Concentric Duality (in Progress) You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
Cornell2 Shariyar Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 186 Category: Entertainment License: All Rights Reserved Like it (0) Dislike it (0) Added: June 15, 2007 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript A new family of flat-topped beams interesting for future LIGO interferometers: A new family of flat-topped beams interesting for future LIGO interferometers Mihai Bondarescu California Institute of Technology Collaborators and Consultants: Collaborators and Consultants K. Thorne (Caltech) Pavlin Savov (Caltech) Erika D’Ambrosio (Caltech) S. Vyatchanin (MSU, Moscow) S. Strigin (MSU, Moscow) R. O’Shaughnessy (NWU, Chicago) P. Kazarian (GCC) Slide3: International Network of Interferometric Detectors: International Network of Interferometric Detectors Network Required for: Detection Confidence Waveform Extraction Direction by Triangulation LIGO Hanford, WA LIGO Livingston, LA GEO600 Hanover Germany TAMA300 Tokyo VIRGO Pisa, Italy Slide adapted from a talk by Kip LIGO : LIGO Collaboration of ~350 scientists at ~30 institutions Hanford Washington Slide adapted from a talk by Kip Slide6: Livingston, Louisiana Slide adapted from a talk by Kip LIGO’s International Partners: LIGO’s International Partners Slide adapted from a talk by Kip How a LIGO Interferometer Works: How a LIGO Interferometer Works Fabry-Perot Cavity Fabry-Perot Cavity Beam Splitter Slide adapted from a talk by Kip Slide9: Slide adapted from Rejean J Dupuis talk from http://www.ligo.org/results/ Noise in LIGO : Noise in LIGO Adopted from Kip’s Talk (LIGO-G030137-00-Z) What is Thermoelastic Noise and How to Reduce It?: What is Thermoelastic Noise and How to Reduce It? Random Thermal Fluctuations (~0.5 mm) Hot Regions Expand; Cold Contract Beam Intensity Averages Over Mirror Surface Imperfect Averaging = Thermoelastic Noise Gaussian Beam Slide from a talk prepared by Pavlin Savov for PCGM What is Thermoelastic Noise and How to Reduce It?: What is Thermoelastic Noise and How to Reduce It? Random Thermal Fluctuations (~0.5 mm) Hot Regions Expand; Cold Contract Beam Intensity Averages Over Mirror Surface Imperfect Averaging = Thermoelastic Noise Mesa Beam Slide from a talk prepared by Pavlin Savov for PCGM Building a MESA beam: Building a MESA beam Minimal Gaussian Building a MESA beam: Building a MESA beam Minimal Gaussian Building a MESA beam: Building a MESA beam Minimal Gaussian Building a MESA beam: Building a MESA beam Minimal Gaussians Building a MESA beam: Building a MESA beam Mesa Flat and Concentric Configurations: Flat and Concentric Configurations (O’Shaugnessy, Thorne) (Bondarescu, Kazarian,Savov) Flat and Concentric Configurations: Flat and Concentric Configurations (O’Shaugnessy, Thorne) (Bondarescu, Kazarian,Savov) My proposal: My proposal Mirror Overlap minimal Gaussians centered on these lines What’s different?: What’s different? Surfaces of constant phase Mimimal Gausian’s axis What’s different?: What’s different? Flat Mirrors Confocal Mirros D Mesa Beams Comparison: Mesa Beams Comparison Mexican-Hat Mirrors’ Corrections: Mexican-Hat Mirrors’ Corrections Tilt Instability: Tilt Instability Reduce Thermoelastic Noise Evaluate Tilt Instability for New Mirrors’ Shapes Compare to Conventional Spherical Mirrors Fabry-Perot Cavity The Eigenvalue Problem: The Eigenvalue Problem Mesa Beam Profiles: Mesa Beam Profiles Flat-Concentric MB Comparison: Flat-Concentric MB Comparison Eigenstates Comparison Eigenvalues Comparison Again Flat-Concentric Configurations Relation: Again Flat-Concentric Configurations Relation (Yanbei Chen) G=1-L/R Results and Conclusions: Results and Conclusions Thermoelastic Noise (O,Shaughnessy, Strigin, Vyatchanin) Tilt Instability (Mode Mixing) Nearly Flat Concentric Duality (in Progress)