Quantum Enhancement Of A 4 Km Laser Interferometer Gravitational Wave Detector
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Quantum Enhancement Of A 4 Km Laser Interferometer Gravitational Wave Detector
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Author : Sheon S. Y. Chua
language : en
Publisher: Springer
Release Date : 2015-05-09
Quantum Enhancement Of A 4 Km Laser Interferometer Gravitational Wave Detector written by Sheon S. Y. Chua and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-05-09 with Science categories.
The work in this thesis was a part of the experiment of squeezed light injection into the LIGO interferometer. The work first discusses the detailed design of the squeezed light source which would be used for the experiment. The specific design is the doubly-resonant, traveling-wave bow-tie cavity squeezed light source with a new modified coherent sideband locking technique. The thesis describes the properties affecting the squeezing magnitudes and offers solutions which improve the gain. The first part also includes the detailed modeling of the back-scattering noise of a traveling Optical Parametric Oscillator (OPO). In the second part, the thesis discusses the LIGO Squeezed Light Injection Experiment, undertaken to test squeezed light injection into a 4km interferometric gravitational wave detector. The results show the first ever measurement of squeezing enhancement in a full-scale suspended gravitational wave interferometer with Fabry-Perot arms. Further, it showed that the presence of a squeezed-light source added no additional noise in the low frequency band. The result was the best sensitivity achieved by any gravitational wave detector. The thesis is very well organized with the adequate theoretical background including basics of Quantum Optics, Quantum noise pertaining to gravitational wave detectors in various configurations, along with extensive referencing necessary for the experimental set-up. For any non-experimental scientist, this introduction is a very useful and enjoyable reading. The author is the winner of the 2013 GWIC Theses Prize.
Quantum Enhancement Of A 4km Laser Interferometer Gravitational Wave Detector
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Author : Sheon Shang Yaw Chua
language : en
Publisher:
Release Date : 2013
Quantum Enhancement Of A 4km Laser Interferometer Gravitational Wave Detector written by Sheon Shang Yaw Chua and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with Gravitational waves categories.
The ability to directly detect gravitational waves will open a completely new branch of astronomy to view the Universe, one that is inaccessible to electromagnetic-based astronomy. First generation ground-based interferometric gravitational-wave detectors have achieved strain sensitivities of order one part in ten to the twenty-one, at 100 Hz detection frequency. A new generation of detectors are under construction, designed to improve on the sensitivity of the first-generation detectors by a factor of 10. The quantum nature of light will broadly limit the sensitivity of these new instruments. This quantum noise will originate from the quantum vacuum fluctuations that enter the unused port of the interferometer. One of the most promising options for reducing the quantum noise impact and further increasing the sensitivity is applying quantum squeezed vacuum states. These squeezed states have lower noise in one quadrature than the vacuum state. By replacing the quantum vacuum fluctuations entering the interferometer with squeezed vacuum states, the quantum noise impact is reduced. This thesis firstly details the development of a squeezed light source that produces squeezed states applicable for enhancing interferometric gravitational-wave detectors. A doubly-resonant, travelling-wave bow-tie cavity squeezed light source is presented. For the first time, greater than 10 dB of quantum noise suppression across the gravitational-wave detection band is directly observed, and 11.6 dB of quantum noise suppression is observed above 200 Hz. This squeezing cavity design also has benefits with intrinsic isolation to backscattered light. Experiments that quantify this isolation are reported. The properties affecting squeezing magnitude and low-frequency squeezing measurement are discussed. In addition, a modified squeezing-ellipse-phase control technique for squeezed vacuum states is presented. This thesis secondly presents results from the LIGO Squeezed Light Injection Experiment, undertaken to test squeezed light injection into a 4 km interferometric gravitational-wave detector. The results of the experiment show the first measurement of squeezing-enhancement in a 4 km gravitational-wave detector, with 2.15 dB measured above 250 Hz. This represents the best sensitivity to gravitational waves yet achieved at these frequencies by any single gravitational-wave detector to date. An unknown area was whether the addition of a squeezer would introduce noise couplings that degrade the crucial low frequency sensitivity. The results demonstrate that injected squeezed states are compatible with low frequency gravitational-wave measurement. The characterisation of squeezing-injection optical losses and fluctuations of the squeezing angle are also reported. The knowledge and processes gained, from both the squeezed light source development work and the LIGO Squeezed Light Injection Experiment, will inform the design, planning and implementation of squeezed states in future gravitational-wave detectors.
Handbook Of Gravitational Wave Astronomy
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Author : Cosimo Bambi
language : en
Publisher: Springer Nature
Release Date : 2022-07-02
Handbook Of Gravitational Wave Astronomy written by Cosimo Bambi and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-07-02 with Science categories.
This handbook provides an updated comprehensive description of gravitational wave astronomy. In the first part, it reviews gravitational wave experiments, from ground and space based laser interferometers to pulsar timing arrays and indirect detection from the cosmic microwave background. In the second part, it discusses a number of astrophysical and cosmological gravitational wave sources, including black holes, neutron stars, possible more exotic objects, and sources in the early Universe. The third part of the book reviews the methods to calculate gravitational waveforms. The fourth and last part of the book covers techniques employed in gravitational wave astronomy data analysis. This book represents both a valuable resource for graduate students and an important reference for researchers in gravitational wave astronomy.
The Detection Of Gravitational Waves
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Author : David G. Blair
language : en
Publisher: Cambridge University Press
Release Date : 1991-07-25
The Detection Of Gravitational Waves written by David G. Blair and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991-07-25 with Science categories.
Gravitational radiation has not been positively detected. Over the past two decades an army of extremely sensitive detectors has been built up, so that today its detection appears inevitable. In the opening chapters of this 1991 book David Blair introduces the concepts of gravitational waves within the context of general relativity.
Characterization Of Condensed Matter
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Author : Yujun Song
language : en
Publisher: John Wiley & Sons
Release Date : 2023-08-07
Characterization Of Condensed Matter written by Yujun Song and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-08-07 with Technology & Engineering categories.
Characterization of Condensed Matter A comprehensive and accessible introduction to the characterization of condensed materials The characterization of condensed materials is a crucial aspect of materials science. The science underlying this area of research and analysis is interdisciplinary, combining electromagnetic spectroscopy, surface and interface testing methods, physiochemical analysis methods, and more. All of this must be brought to bear in order to understand the relationship between microstructures and larger-scale properties of condensed matter. Characterization of Condensed Matter: An Introduction to Composition, Microstructure, and Surface Methods introduces the technologies involved in the characterization of condensed matter and their many applications. It incorporates more than a decades’ experience in teaching a successful undergraduate course in the subject and emphasizes accessibility and continuously reinforced learning. The result is a survey which promises to equip students with both underlying theory and real experimental instances of condensed matter characterization. Characterization of Condensed Matter readers will also find: Detailed treatment of techniques including electromagnetic spectroscopy, X-ray diffraction, X-ray absorption, electron microscopy, surface and element analysis, and more Incorporation of concrete experimental examples for each technique Exercises at the end of each chapter to facilitate understanding Characterization of Condensed Matter is a useful reference for undergraduates and early-career graduate students seeking a foundation and reference for these essential techniques.
Handbook Of Optical Sensors
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Author : Jose Luis Santos
language : en
Publisher: CRC Press
Release Date : 2014-10-29
Handbook Of Optical Sensors written by Jose Luis Santos and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-10-29 with Technology & Engineering categories.
Handbook of Optical Sensors provides a comprehensive and integrated view of optical sensors, addressing the fundamentals, structures, technologies, applications, and future perspectives. Featuring chapters authored by recognized experts and major contributors to the field, this essential reference: Explains the basic aspects of optical sensors and the principles of optical metrology, presenting a brief historical review Explores the role of optical waveguides in sensing and discusses sensor technologies based on intensity and phase modulation, fluorescence, and plasmonic waves Describes wavefront sensing, multiphoton microscopy, and imaging based on optical coherence tomography Covers optical fiber sensing, from light guiding in standard and microstructured optical fibers to sensor multiplexing, distributed sensing, and fiber Bragg grating Offers a broad perspective of the field and identifies trends that could shape the future, such as metamaterials and entangled quantum states of light Handbook of Optical Sensors is an ideal resource for practitioners and those seeking optical solutions for their specific needs, as well as for students and investigators who are the intellectual driving force of optical sensing.
Encyclopedia Of Modern Optics
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Author : Bob D. Guenther
language : en
Publisher: Academic Press
Release Date : 2018-02-14
Encyclopedia Of Modern Optics written by Bob D. Guenther and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-02-14 with Technology & Engineering categories.
The Encyclopedia of Modern Optics, Second Edition, Five Volume Set provides a wide-ranging overview of the field, comprising authoritative reference articles for undergraduate and postgraduate students and those researching outside their area of expertise. Topics covered include classical and quantum optics, lasers, optical fibers and optical fiber systems, optical materials and light-emitting diodes (LEDs). Articles cover all subfields of optical physics and engineering, such as electro-optical design of modulators and detectors. This update contains contributions from international experts who discuss topics such as nano-photonics and plasmonics, optical interconnects, photonic crystals and 2D materials, such as graphene or holy fibers. Other topics of note include solar energy, high efficiency LED’s and their use in illumination, orbital angular momentum, quantum optics and information, metamaterials and transformation optics, high power fiber and UV fiber lasers, random lasers and bio-imaging. Addresses recent developments in the field and integrates concepts from fundamental physics with applications for manufacturing and engineering/design Provides a broad and interdisciplinary coverage of specialist areas Ensures that the material is appropriate for new researchers and those working in a new sub-field, as well as those in industry Thematically arranged and alphabetically indexed, with cross-references added to facilitate ease-of-use
Fundamentals Of Interferometric Gravitational Wave Detectors Second Edition
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Author : Peter R Saulson
language : en
Publisher: World Scientific
Release Date : 2017-02-16
Fundamentals Of Interferometric Gravitational Wave Detectors Second Edition written by Peter R Saulson and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-02-16 with Science categories.
'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.
Gravitational Wave Experiments Proceedings Of The First Edoardo Amaldi Conference
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Author : Eugenio Coccia
language : en
Publisher: World Scientific
Release Date : 1995-07-26
Gravitational Wave Experiments Proceedings Of The First Edoardo Amaldi Conference written by Eugenio Coccia and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995-07-26 with categories.
Gravitational waves were predicted by Einstein over 75 years ago. Their detection is one of the great challenges of contemporary experimental physics. This Conference intended to honour Edoardo Amaldi for his role in this research and brought together scientists engaged all over the world in gravitational wave experiments with resonant mass, interferometers and space detectors. The book gives a broad view of the detectors presently in operation and of the new generation of interferometric and resonant mass detectors now being built or under design. The book also contains lectures on neutrino telescopes and γ ray bursts observations, underlying the role of coincidence experiments among different detectors in opening new windows on the Universe.
Nonlinear Optics With Structured Light
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Author : Zhi-Han Zhu
language : en
Publisher: Frontiers Media SA
Release Date : 2022-05-04
Nonlinear Optics With Structured Light written by Zhi-Han Zhu and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-05-04 with Science categories.