Download or read book Characterisation of the Mechanical Properties of Thin film Mirror Coating Materials for Use in Future Interferometric Gravitational Wave Detectors written by Raymond Robie and published by . This book was released on 2018 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mechanical Properties of Coating Materials for Use in the Mirrors of Interferometric Gravitational Wave Detectors written by Matthew Robert Abernathy and published by . This book was released on 2012 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Studies of Mechanical and Optical Properties of Thin Film Coatings for Future Gravitational Wave Detectors written by Simon C. Tait and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterisation of Ion beam Deposited Thin film Coating Materials for Use in Future Gravitational Wave Observatories written by Svetoslava Angelova and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterization of New Materials and Designs for Reflective Optical Coatings of Future Gravitational Wave Detectors written by Maya Marie Antoinette Kinley-Hanlon and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Coating Free Mirrors for Ultra Sensitive Interferometry written by Jeff Cumpston and published by . This book was released on 2006 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermodynamical fluctuations impose random noise on the position of optical components. It is predicted that this thermal noise will limit the sensitivity of interferometric gravitational-wave detectors in their most sensitive frequency band. Thermal noise originating from optical coatings was first considered in the context of interferometric gravitational wave detectors. Its true significance was, however, only revealed after Y. Levin introduced a new method in 1998 to calculate the resulting phase noise of a laser beam reading out the position of a coated mirror. A result of this analysis is that the reflective optical coatings introduce a particularly large portion of thermal noise. ¶ As a consequence, coating thermal noise is expected to prevent the detection of the standard quantum limit; a limitation to the sensitivity of an interferometric measurement caused by quantum fluctuations in the optical field. Elimination of the coating thermal noise will increase the likelihood of the successful observation of the standard quantum limit, thus enabling the investigation of quantum noise in the regime of optical squeezing. This project investigated a means to eliminate the effects of coating thermal noise, with the design and characterisation of a highly reflective coating-free mirror. This mirror utilised the phenomenon of total internal reflection and the Brewster angle to reflect light without the use of coatings. The dimensions of the mirror were governed by its expected implementation in an experiment to measure the standard quantum limit. ¶ The design of the coating-free mirror undertaken as the initial part of this project is presented in detail. Once a CFM had been created according to this design, its spatial dimensions were measured. The weight of the mirror is 0.43 ± 0.01 g, well within the design goal of 0.5 g. ¶ In order to analyse the reflectivity of the coating-free mirror it was incorporated, together with a high quality conventional mirror, into a triangular ring cavity. This cavity was stabilised to the laser frequency by the Pound-Drever-Hall technique. This enabled the interrogation of the stable cavity properties by an AM-sideband transfer scheme. The reflectivity of the mirror was analysed for optimum rotational alignment and as a function of its rotational alignment angle. The maximum reflectivity deviated from the expected value calculated from the mirror design. Most of the excess loss was attributed to scattering due to surface roughness at the points of total internal reflection and a necessary deviation from the Brewster angle due to the geometry of the cavity combined with the flat front face of the coating free mirror. ¶ For optimum alignment a cavity finesse of about 4000 was measured, corresponding to a reflectivity of the coating free mirror of 99.89%. Thus, the objective of creating a highly reflective lightweight coating-free optic was achieved. The obtained reflectivity can be further increased by using a substrate that is super polished at the faces of total internal reflection.

Download or read book Coatings on Glass written by H. Pulker and published by Elsevier. This book was released on 1999-03-29 with total page 569 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the second, revised edition of a book that has already proved invaluable to a wide range of readers. Written by a scientist for scientists and technical people, it goes beyond the subject matter indicated by the title, filling the gap which previously existed in the available technical literature. It includes a wealth of information for physicists, chemists and engineers who need to know more about thin films for research purposes, or who want to use this special form of solid material to achieve a variety of application-oriented goals.

Download or read book The Atomic Structure and Properties of Mirror Coatings for Use in Gravitational Wave Detectors written by Riccardo Bassiri and published by . This book was released on 2011 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Low Thermal Noise Coating for New Generation Gravitational Wave Detectors written by Alex Amato and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The work of this thesis is the study of mechanical and optical properties of coatings (mainly deposited by IBS technique at LMA), with the purpose of finding a new possible material with the aim of reduce the coating thermal noise in current and in future gravitational-wave detectors (GWDs). The mechanical characterization done at LMA regards measurements of internal friction and elastic constants by the ring-down method using a Gentle Nodal Suspension (GeNS) system. The optical characterization has been done using spectroscopic ellipsometry (SE). Thanks to a collaboration with the OPTMATLAB of the University of Genova, I was able to characterize the samples using SE in a wide-range energy region (from UV to NIR). The first analysed samples are the coatings currently used in GWDs, SiO2, Ta2O5 and Ti:Ta2O5. Then, Nb2O5, Nb:TiO2, Zr:Ta2O5, SiC and SiNx have been characterize as high-refractive index coatings, whereas MgF2 and AlF3 have been studied with the purpose of replace the low-refractive index, reducing the total coating thickness, hence the coating thermal noise. Among the investigated coatings, Zr:Ta2O5 and SiNx provided the most promising results in term of internal friction. Important finding have been achieved regarding the theory of the internal friction of amorphous oxides and the optical and mechanical characterization of the samples.

Download or read book Characterization of Mechanical Properties of Thin Films by Scanning Probe Microscopy written by Chung-Jen Lu and published by . This book was released on 1994 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Coatings on Glass written by H.K. Pulker and published by . This book was released on 1984 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: Twice reprinted and now also available in a paperback edition, this book has already proved invaluable to a wide range of readers. Written by a scientist for scientists and technical people, it goes beyond the subject matter indicated by the title, filling the gap which previously existed in the available technical literature. It includes a wealth of information for physicists, chemists and engineers who need to know more about thin films for research purposes, or who want to use this special form of solid material to achieve a variety of application-oriented goals.

Download or read book Fundamentals Of Interferometric Gravitational Wave Detectors Second Edition written by Peter R Saulson and published by World Scientific. This book was released on 2017-02-16 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: 'The content of the Saulson’s book remains valid and offers a versatile introduction to gravitational wave astronomy. The book is appropriate for undergraduate students and can be read by graduate students and researchers who want to be involved in either the theoretical or the experimental traits of the study of gravitational waves.'Contemporary PhysicsLIGO's recent discovery of gravitational waves was headline news around the world. Many people will want to understand more about what a gravitational wave is, how LIGO works, and how LIGO functions as a detector of gravitational waves.This book aims to communicate the basic logic of interferometric gravitational wave detectors to students who are new to the field. It assumes that the reader has a basic knowledge of physics, but no special familiarity with gravitational waves, with general relativity, or with the special techniques of experimental physics. All of the necessary ideas are developed in the book.The first edition was published in 1994. Since the book is aimed at explaining the physical ideas behind the design of LIGO, it stands the test of time. For the second edition, an Epilogue has been added; it brings the treatment of technical details up to date, and provides references that would allow a student to become proficient with today's designs.

Download or read book Mechanical Properties of Thin Films and Coatings written by Changjin Xie and published by . This book was released on 2004 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Thin Films Volume 188 written by M. Doerner and published by Cambridge University Press. This book was released on 1990-10-29 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: The MRS Symposium Proceeding series is an internationally recognised reference suitable for researchers and practitioners.

Download or read book Symposia C Optical Thin Films D Diamond and Related Materials F Advances in Coating and Thin Film Characterization H Advanced Materials in Microelectronics and Session on Mechanical Processes on the Atomic Scale E4 from Symposium E Tribological Coatings surface Modifications written by International Conference on Metallurgical Coatings and Thin Films 22, 1995, San Diego, Calif and published by . This book was released on 1995 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterization of Mechanical Properties of Microelectronic Thin Films written by Fariborz Maseeh and published by . This book was released on 1990 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Thin Films Stresses and Mechanical Properties IX written by Cengiz S. Ozkan and published by Cambridge University Press. This book was released on 2014-06-05 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, the ninth in a popular series from the Materials Research Society, is strengthened by invited and contributed papers covering a wide range of subjects, from processing-microstructure-mechanical property relationships, strain effects and self-organization in thin films, nanoscale defects and thermomechanical behavior of materials, to novel nanscale materials testing. While the collection continues the series theme of materials science related modeling and characterization of mechanical properties of materials, special focus is given to: strain relaxation and strengthening mechanisms; defects formation; mechanical properties and nanoscale testing; adhesion and fracture; thin-film applications in MEMS; computational modeling and experiments; and film deposition, microstructure, evolution and intrinsic stress.