Study Analysis And Experimental Validation Of Fiber Refractometers Based On Single Mode Multimode And Photonic Crystal Fibers For Refractive Index Measurements With Application For The Detection Of Methane
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Study Analysis And Experimental Validation Of Fiber Refractometers Based On Single Mode Multimode And Photonic Crystal Fibers For Refractive Index Measurements With Application For The Detection Of Methane
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Author : Haris Apriyanto
language : en
Publisher:
Release Date : 2019
Study Analysis And Experimental Validation Of Fiber Refractometers Based On Single Mode Multimode And Photonic Crystal Fibers For Refractive Index Measurements With Application For The Detection Of Methane written by Haris Apriyanto and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with categories.
Refractive index measurement has been studied since Ernest Abbé initially designed a refractometer in 1869, which is named the Abbé refractometer. Since then, numerous types of refractometers have been developed by employing either the optical prism-based refractometer or the optical fiber-based refractometer, due to their wide-ranging applications such as for sensingvarious physical, biological and chemical parameters. Recently, a large number of researchers have been developing refractometers based on optical fibers, exploiting mechanisms such as surface plasmon resonance (SPR), multimode interference, fiber Bragg gratings (FBG), long period gratings (LPG), tapered optical fibers, and striped-cladding multimode fibers (MMF), for their advantages in immunity against electromagnetic interference, electrical passivity at the sensing probe, and capability to long term in-situ measurement. This thesis concerns the development of comprehensively functional and accurate models for optical fiber refractometers based on optical intensity modulation, in particular for stripped-cladding MMF refractometry as well as hybrid systems involving a combination of single-mode-multimode fiber refractometery and the all-fiber hybrid refractometer using photonic crystal fibers. A key objective of this work is to characterize the performance of these intensity-based optical fiber refractometers in terms of their power response, sensitivity, resolution, and dynamic range. The simulation results which are corroborated experimentally demonstrate very high sensitivity being obtained in Zone II (i.e. the sensing regime typically employed for measuring a sensing medium index higher than the cladding index but less than or equal to the core index) for all three types of refractometers. However, the sensitivity in Zone III (i.e. the sensing regime for which the sensing medium index is higher than the core index) is very low. A hybrid single-mode fiber - multimode fiber configuration is used to improve the sensitivity in Zone III. On other hand, the sensitivity for Zone I (i.e. the sensing regime typically employed for measuring a sensing medium index lower than the cladding index) has been improved by increasing evanescent wave absorption using the all-fiber hybrid refractometer based on solid-core photonic crystal fibers. As a further potential of the fiber refractometer for applications in biochemical sensing, the proof-of-concept for a methane gas sensor has been demonstrated using supramolecular cryptophane-A which enables to trap the methane molecules. Cryptophane-A incorporated into a functionalized film of StyreneAcrylonitrile (SAN) host is applied to a de-cladded region of the sensor as the sensitive region. The refractive index of this functionalized layer increases proportionally with increasing methane concentration, subsequently inducing variations in the transmitted optical power along the fiber sensor.
Current Developments In Optical Fiber Technology
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Author : Sulaiman Wadi Harun
language : en
Publisher: BoD – Books on Demand
Release Date : 2013-06-13
Current Developments In Optical Fiber Technology written by Sulaiman Wadi Harun and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-06-13 with Technology & Engineering categories.
This book is a compilation of works presenting recent advances and progress in optical fiber technology related to the next generation optical communication, system and network, sensor, laser, measurement, characterization and devices. It contains five sections including optical fiber communication systems and networks, plastic optical fibers technologies, fiber optic sensors, fiber lasers and fiber measurement techniques and fiber optic devices on silicon chip. Each chapter in this book is a contribution from a group of academicians and scientists from a prominent university or research center, involved in cutting edge research in the field of photonics. This compendium is an invaluable reference for researchers and practitioners working in academic institutions as well as industries.
Handbook Of Humidity Measurement Volume 1
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Author : Ghenadii Korotcenkov
language : en
Publisher: CRC Press
Release Date : 2018-03-15
Handbook Of Humidity Measurement Volume 1 written by Ghenadii Korotcenkov and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-03-15 with Science categories.
The first volume of The Handbook of Humidity Measurement focuses on the review of devices based on optical principles of measurement such as optical UV, fluorescence hygrometers, optical and fiber-optic sensors of various types. Numerous methods for monitoring the atmosphere have been developed in recent years, based on measuring the absorption of electromagnetic field in different spectral ranges. These methods, covering the optical (FTIR and Lidar techniques), as well as a microwave and THz ranges are discussed in detail in this volume. The role of humidity-sensitive materials in optical and fiber-optic sensors is also detailed. This volume describes the reasons for controlling the humidity, features of water and water vapors, and units used for humidity measurement.
Advancement In Sensing Technology
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Author : Subhas Chandra Mukhopadhyay
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-09-06
Advancement In Sensing Technology written by Subhas Chandra Mukhopadhyay and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-09-06 with Technology & Engineering categories.
The book presents the recent advancements in the area of sensors and sensing technology, specifically in environmental monitoring, structural health monitoring, dielectric, magnetic, electrochemical, ultrasonic, microfluidic, flow, surface acoustic wave, gas, cloud computing and bio-medical. This book will be useful to a variety of readers, namely, Master and PhD degree students, researchers, practitioners, working on sensors and sensing technology. The book will provide an opportunity of a dedicated and a deep approach in order to improve their knowledge in this specific field.
Fiber Optic Sensors
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Author : Eric Udd
language : en
Publisher:
Release Date : 2006
Fiber Optic Sensors written by Eric Udd and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Fiber optics categories.
Annotation A comprehensive introduction to this fast growing technology. This book provides an introduction to the rapidly advancing and expanding field of fiber optic sensors, with chapters contributed by internationally recognized experts. Each of the three sections-Basic Components, Technology, and Applications-offers a stand-alone primer on a key area of the field. Together, they give engineers, scientists, graduate students, and advanced undergraduates a comprehensive resource on fiber optic sensors. Initial chapters cover optical fibers, light sources, and detectors and optical modulators, introducing the fundamental building blocks of fiber optic sensors and pointing out the many connections between these elements and fiber optic sensor technology. Subsequent chapters cover: Extrinsic or hybrid fiber optic sensors, Intensity sensors for monitoring temperature, position, and other environmental aspects. The Fabry-Perot based fiber optic sensor. The Mach-Zehnder interferometer, The Sagnac interferometer and fiber gyroscopes. Displacement fiber optic sensors. Polarization sensors. Industrial applications of fiber optic sensors. Fiber optic smart structures. Pooling the expertise of leading professionals, Fiber Optic Sensors supplies an integral resource for understanding a key area of optical science and telecommunications.
Internet Of Things Global Technological And Societal Trends From Smart Environments And Spaces To Green Ict
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Author : Ovidiu Vermesan
language : en
Publisher: CRC Press
Release Date : 2022-09-01
Internet Of Things Global Technological And Societal Trends From Smart Environments And Spaces To Green Ict written by Ovidiu Vermesan and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-09-01 with Science categories.
The book's aim is to define the Internet of Things (IoT) in a global view, present the research agenda for Internet of Things technologies by addressing the new technological developments and providing a global balanced coverage of the challenges and the technical and industrial trends.Energy consumption by the data, communication and networking devices and global CO2 emission is increasing exponentially. ICT has a dual role in this process: it accounts for about two percent of global CO2 emissions and at the same the ICT including IoT technologies and applications have a direct effect on lowering CO2 emissions, increasing energy efficiency, reducing power consumption, and achieving efficient waste recycling.The book builds on the ideas put forward by the European research Cluster on the Internet of Things Strategic Research Agenda and presents global views and state of the art results on the challenges facing the research, development and deployment of IoT at the global level.IoT together with the other emerging Internet developments such as Internet of Energy, Media, People, Services, Business/Enterprises are the backbone of the digital economy, the digital society and the foundation for the future knowledge based economy and innovation society. IoT developments show that we will have 16 billion connected devices by the year 2020 , which will average out to six devices per person on earth and to many more per person in digital societies.Devices like smart phones and machine to machine or thing to thing communication will be the main drivers for further IoT development.
Nanotechnology And Biosensors
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Author : Dimitrios P Nikolelis
language : en
Publisher: Elsevier
Release Date : 2018-06-27
Nanotechnology And Biosensors written by Dimitrios P Nikolelis and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-06-27 with Science categories.
Nanotechnology and Biosensors shows how nanotechnology is used to create affordable, mass-produced, portable, small sized biosensors to directly monitor environmental pollutants. In addition, it provides information on their integration into components and systems for mass market applications in food analysis, environmental monitoring and health diagnostics. Nanotechnology has led to a dramatic improvement in the performance, sensitivity and selectivity of biosensors. As metal-oxide and carbon nanostructures, gold and magnetite nanoparticles, and the integration of dendrimers in biosensors using nanotechnology have contributed greatly in making biosensors more effective and affordable on a mass-market level, this book presents a timely resource on the topic. Highlights nanotechnology-based approaches to the detection of enzyme inhibitors, direct enzymatic and microbial detection of metabolites, and nutrients using biosensors Includes examples on how nanotechnology has lead to improvements in the construction of portable, selective and sensitive biosensing devices Offers thorough coverage of biomarker/biosensor interaction for the rapid detection of toxicants and pollutants
Optical Guided Wave Chemical And Biosensors Ii
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Author : Mohammed Zourob
language : en
Publisher: Springer Science & Business Media
Release Date : 2010-03-10
Optical Guided Wave Chemical And Biosensors Ii written by Mohammed Zourob and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-03-10 with Science categories.
For the first time, distinguished scientists from key institutions worldwide provide a comprehensive approach to optical sensing techniques employing the phenomenon of guided wave propagation for chemical and biosensors. This includes both state-of the-art fundamentals and innovative applications of these techniques. The authors present a deep analysis of their particular subjects in a way to address the needs of novice researchers such as graduate students and post-doctoral scholars as well as of established researchers seeking new avenues. Researchers and practitioners who need a solid foundation or reference will find this work invaluable. This second of two volumes covers the incorporation of periodic structures in waveguides to exploit the Bragg phenomenon, optical fiber sensors, hollow waveguides and micro-resonators as well as a review of the tremendous expansion of terahertz technology for sensing applications.
Airmobile Operations
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Author : United States. Department of the Army
language : en
Publisher:
Release Date : 1971
Airmobile Operations written by United States. Department of the Army and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with Aeronautics, Military categories.
Refractive Indices Of Solids
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Author : Stepan S. Batsanov
language : en
Publisher: Springer
Release Date : 2016-08-10
Refractive Indices Of Solids written by Stepan S. Batsanov and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-08-10 with Technology & Engineering categories.
This book highlights the basics of crystal optics methods and refractive index (RI) measurement techniques in various solids, as well as their scientific and technological applications. In addition to new techniques for cases when traditional techniques are impractical, such as for highly refracting powders, anomalous dispersion of light in the studied solid, or for colloids, it also describes conventional methods of RI measurement.