Download or read book Mid infrared Integrated Photonic Devices for Biosensing written by Vinita Mittal and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Near and Mid infrared Integrated Photonic Bio chemical Sensing Devices with On chip Spectrometers written by Kyoung Min Yoo and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a recent decade, miniaturized optical sensor devices based on photonic integrated circuits (PICs) have been investigated vigorously due to their exceptional advantages such as high speed, high sensitivity, high-density integration, low cost, compactness, and robustness against the environmental fluctuation by eliminating the assembly and alignment of the free-space optical components. Especially, near- and mid-infrared photonics have intrigued a great interest in various sensing applications including the physical object/environment imaging and mapping, material identification, and chemical/biomolecule sensing due to the strong fundamental vibrational-rotational signatures of the distinct chemical bonds and high transmittance in an ambient atmospheric environment or in-vivo mammalian bio-cells. The basic components constituting the PICs are the micro/nano waveguides to guide the light by the total internal reflection, and the most matured PIC material platforms are typically based on silicon platforms. However, depending on the targeting application's operation scheme and wavelengths, appropriate material platforms and structures should be designed and optimized to minimize material loss and maximize performance. This Ph.D. dissertation focuses on the design, fabrication, and experimental characterization of the various passive photonic components in different material platforms and photonic integrated sensor devices for the mid-infrared (MIR) absorption trace gas sensors, near-infrared (NIR) on-chip spectrometers, and biosensing applications. The first chapter covers the MIR trace gas sensor devices based on the suspended InGaAs membrane waveguides. We designed and compared two different waveguide structures on the III-V material platform considering the monolithic integration of the sensing waveguides with the light sources and detectors in MIR wavelengths. The second chapter demonstrates the NIR spatial heterodyne Fourier transform spectrometer (SHFTS) integrated with a subwavelength grating coupler (SWGC) for the dual-polarization bandpass sampling on the Si3N4 platform to solve the intrinsic trade-off limitation between the resolution and bandwidth. After that, the micro-ring resonator (MRR) biosensor devices integrated with SHFTS for the lab-on-a-chip optical biosensor platform on the silicon-on-insulator wafer were presented which can substitute the external optical spectrum analyzers for detecting the resonance wavelength shift. Finally, a thorough study on the point-of-care SARS-CoV-2 lab-on-a-chip (LoC) optical biosensor platforms is presented, and the recommendations for future research will be discussed

Download or read book Biophotonics and Biosensing written by Andrea Armani and published by Elsevier. This book was released on 2024-05-21 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biophotonics and Biosensing: From Fundamental Research to Clinical Trials Through Advances of Signal and Image Processing brings together the knowledge of the basic principles of the field of light-biological tissue interaction, detection methods, data processing techniques, and research, diagnostic and clinical applications. It is suitable for new entrants, while also highlighting the latest developments for experts in the field. This volume includes perspectives by leading experts from the biophotonics, biomedical engineering, and data science communities. The reader will receive a basic grounding in the key theoretical principles and practical components of biophotonics and biosensing. Working principles of devices used in spectroscopy, microscopy, and optical sensing are presented along with their application domains. The reader will learn about existing microscopy-based techniques used in biomedical applications for diagnosis and get to know different signal processing algorithms as used in biophotonics. Finally, through concrete examples, including sample preparation and measurement approaches, see how the field has developed thanks to the integration of biophotonics and optical biosensing with signal processing. - Introduces key principles of light-biological tissue interactions and biosensing - Discusses how the most promising optical diagnostic methods can exploit contemporary signal and image processing algorithms and data analytics - Includes examples of clinical studies with detailed descriptions of their implementation, along with practical guidance

Download or read book Integrated Bio photonic Devices written by Robin Singh (Ph. D.) and published by . This book was released on 2021 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optical imaging, sensing, and testing are ubiquitous in biology, offering elegant solutions for diagnostic, therapeutic, and theranostic applications. If these optical systems can be built using complex miniaturized photonic systems, then scalability, portability, lower cost, and higher performance can be obtained for real-time monitoring and bedside treatment. My Ph.D. focuses on the design, optimization, low-loss in-house fabrication, and testing of the building blocks of miniaturized photonic devices for three biological applications: 1) Neurophotonic Probes for Deep Brain Photoacoustic Imaging: Conventionally, the implantable probe technology is based on an array of patterned electrodes to monitor electrical signals in the extracellular matrix of deep neural cells. The state-of-art design can successfully record only 100 neurons simultaneously, making it rather slow progress to reach the ultimate goal of probing 100 billion neurons in the human brain! To overcome this bottleneck, we propose an implantable neurophotonic photoacoustic probe architecture that could image about 10000 neurons with cellular resolution. Realized on Michigan style MOEMS technology, the probe consists of photonic waveguide-based meta illuminators for photoacoustic excitation and high-frequency ultrasonic transducers for acoustic detection. The probe is a miniaturized implantable sensing system that improves the depth of penetration ( 8-10 mm) and resolution ( 1-5 [mu]m) in neural imaging. We will discuss imaging feasibility, engineering different optical excitation beam profiles using nanophotonic structures, and will demonstrate an ultrasound detector using an integrated photonics platform. 2) Integrated Optofluidic Sensors for Aerosol Sensing and Blood Coagulometry: We will demonstrate optofluidic sensors for in-situ characterization (size, count, and chemistry) of aerosol and bio-aerosol particles. These photonic sensor designs based on Near-IR and Mid-IR platforms can extract the physical and chemical nature of interacting particles over a broad range of sizes (100 nm to 2 [mu]m in diameter) compared to current integrated photonics-based sensors, that are restricted to molecular or nanoparticle sensing. We also explore these photonic sensors for on-chip blood coagulometry. 3) Machine Learning for Nanophotonic Design: The applications mentioned above require complex photonic structures that can manipulate and guide light waves at the nanoscale. The design space of such nanostructures is often high-dimensional, where conventional design optimization methods fail. We employ machine learning to capture a global optimum in functionality.

Download or read book On Chip Photonics written by Alina Karabchevsky and published by Elsevier. This book was released on 2024-08-13 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: On-Chip Photonics: Principles, Technology and Applications reviews advances in integrated photonic devices and their demonstrated applications, including ultrafast high-power lasers on a chip, mid-infrared and overtone spectroscopies, all-optical processing on a chip, logic gates on a chip, and cryptography on a chip. The summaries in the book's chapters facilitate an understanding of the field and enable the application of optical waveguides in a variety of optical systems. The ultimate goal of this work is aimed at accelerating the transition of on-chip photonics from academia to the industry. Each chapter, where appropriate, provides an overview of the computational tools, fabrication methods, and suggestions for the realization of on-chip photonic devices. - Introduces advanced concepts of passive and active on-chip photonic components - Discusses emerging applications of on-chip photonics, quantum technologies, computing, and more - Reviews materials, computational tools, and suggestions for the realization of on-chip photonic devices

Download or read book Mid infrared Integrated Devices for Optical Chemical Sensing written by Farah Alimagham and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Infrared Mid IR and Terahertz Technologies for Health and the Environment II written by Alexey A. Belyanin and published by Society of Photo Optical. This book was released on 2007 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes Proceedings Vol. 7821

Download or read book Photonic Crystal Slabs for Low cost Biosensors written by Yousef Nazirizadeh and published by KIT Scientific Publishing. This book was released on 2014-10-16 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biosensors are devices that utilize biological recognition elements to selectively detect and analyze specific biological and chemical analyte substances. In this work a technology platform for label-free optical biosensors based on surface-functionalized photonic crystal slabs is proposed. Using this technology platform, low-cost solutions for three biotechnical questions are presented.

Download or read book Transverse Patterns in Nonlinear Optical Resonators written by Kestutis Staliunas and published by Springer Science & Business Media. This book was released on 2003-02-27 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: The growth of regularity from disorder, the evolution from the simple towards the complex, and the spontaneous formation of spatio temporal patterns in general are questions which intrigue everybody. This has been one of the hasic philosophical topics from ancient to modern times. Is nature able to create something fundamentally new by itself? If yes, how does this creation occurs? Or does nature only reproduce something which was already encoded in it, from the very beginning? This remained a topic exclusively for philoso phers until very recently, and it was only a few decades a. go that physicists started to convert this seemingly purely philosophical subject into a scientific discipline: a scientific discipline like other scientific disciplines, where one re lies on formulas and equations, on nunlerical simulations, and on laboratory experiments. This book is not about general questions related to pattern formation and self organization in nature. It is about spontaneous patterns in just one part of nature in nonlinear optical systems, and, more precisely, in nonlinear optical resonators. Nonlinear optical systems represent a small part of nature, hut a very representative part: one can observe here nearly all the known symmetries of patterns, one can generate nearly all known types of localized strlictlires and one can realize nearly all known spatial instabilities and spatial bifurcations.

Download or read book Toward Mid infrared Photonic Integration written by Dingkai Guo and published by . This book was released on 2013 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: The mid-infrared (Mid-IR) wavelength range is important for applications including medical and security imaging, environmental trace gas sensing and free space communications. However, photonic integrated circuits (PICs) in the mid-IR range are under-developed which significantly slows the possible reduction of mid-IR system size, weight, and coupling losses and limits the development of highly functional mid-IR photonic modules with lower cost. In this dissertation, a solution to mid-IR photonic integration was demonstrated using a compact, widely tunable mid-IR transmitter and a mid-IR amplifying photo-detector, both which can be integrated with the mid-IR source.

Download or read book Integrated optical sensors on the Si N organic hybrid SiNOH platform written by Kohler, Daria and published by KIT Scientific Publishing. This book was released on 2023-03-09 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ein wellenleiterbasierter Sensorchip wird demonstriert, der für Point-of-Care-Anwendungen geeignet ist. Der Biosensor wird mit Hilfe eines mathematischen Modells entworfen, mit dem die Sensitivität der Wellenleiter untersucht wird. Für die Lichteinkopplung in die Wellenleiter wird erstmalig eine neue Klasse von integrierten Laserquellen für sichtbare Wellenlängen untersucht. Die Funktionsfähigkeit des wellenleiterbasierten Biosensorchips durch Detektionsexperimente erfolgreich nachgewiesen. - A waveguide-based sensor chip is demonstrated that is suitable for point-of-care applications. The biosensor is designed using a mathematical model to investigate the sensitivity of the waveguides. A new class of integrated laser sources for visible wavelengths is being investigated for the first time for light coupling into the waveguides. The functionality of the waveguide-based biosensor chip is successfully demonstrated by detection experiments.

Download or read book Toroidal Metamaterials written by Arash Ahmadivand and published by Springer Nature. This book was released on 2020-09-25 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an overview of the use of toroidal moments. This includes methods of excitation, numerical analysis, and experimental measurements of associating structures. Special emphasis is placed on understanding the fundamental physics, characteristics, and real-world applications of toroidal multipoles. This book also covers a variety of both planar and 3D meta-atom and metamolecule schemes capable to sustain toroidal moments across a wide range of spectrum. It discusses the implementation of innovative approaches, for exploring the spectral features and excitation methodologies, predicting the properties of the correlating metasystems in their excited states. An applicable text for undergraduate, graduate, and postgraduate students, this book is also of interest to researchers, theorizers, and experimentalists working in optical physics, photonics, and nanotechnology.

Download or read book Photonic Materials for Sensing Biosensing and Display Devices written by Michael J. Serpe and published by Springer. This book was released on 2015-12-28 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the basics and applications of photonic materials. It focuses on the utility of these devices for sensing, biosensing, and displays. The book includes fundamental aspects with a particular focus on the application of photonic materials. The field of photonic materials is both a burgeoning, and mature field. There are new advances being made on a daily basis, all based on the fundamental roots set by work by those like Ozin, Thomas, Asher, and others.

Download or read book Waveguide Based Photonic Sensors From Devices to Robust Systems written by Milvich, Johannes and published by KIT Scientific Publishing. This book was released on 2022-03-15 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: Integrated photonic sensor systems are miniaturized, mass-producible devices that leverage the mature semiconductor fabrication technology and a well-established ecosystem for photonic circuits. This book aims at a holistic treatment of waveguide-based photonic sensor systems by analyzing photonic waveguide design, photonic circuit design and readout design. Across all levels, a special emphasis is given to system-level performance optimization under realistic environmental conditions.

Download or read book Plasmonics Based Optical Sensors and Detectors written by Banshi D. Gupta and published by CRC Press. This book was released on 2023-08-24 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plasmonics stems from the surface charge density oscillations at metal–dielectric interface, leading to extremely strong light–matter interactions. In the past few decades, plasmonics has become one of the most favorite fields/techniques in realizing high-performance photonic devices. For this purpose, different new concepts, such as exploration of different radiation frequency regions, two-dimensional materials/heterostructures, and different types of substrates for the excitation of plasmons have been investigated for plasmonics-based sensors and detectors. This book focuses on the recent and advanced works on optical sensors and detectors utilizing plasmonic techniques for opto-electronic applications. The book is unique as it describes both sensors and detectors based on plasmonics and their practical applications in a single book, a feature not found in any book so far.

Download or read book Nonlinear Laser Dynamics written by Kathy Lüdge and published by John Wiley & Sons. This book was released on 2012-04-09 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: A distinctive discussion of the nonlinear dynamical phenomena of semiconductor lasers. The book combines recent results of quantum dot laser modeling with mathematical details and an analytic understanding of nonlinear phenomena in semiconductor lasers and points out possible applications of lasers in cryptography and chaos control. This interdisciplinary approach makes it a unique and powerful source of knowledge for anyone intending to contribute to this field of research. By presenting both experimental and theoretical results, the distinguished authors consider solitary lasers with nano-structured material, as well as integrated devices with complex feedback sections. In so doing, they address such topics as the bifurcation theory of systems with time delay, analysis of chaotic dynamics, and the modeling of quantum transport. They also address chaos-based cryptography as an example of the technical application of highly nonlinear laser systems.

Download or read book Plasmonics and Plasmonic Metamaterials written by G. Shvets and published by World Scientific. This book was released on 2012 with total page 469 pages. Available in PDF, EPUB and Kindle. Book excerpt: Manipulation of plasmonics from nano to micro scale. 1. Introduction. 2. Form-Birefringent metal and its plasmonic anisotropy. 3. Plasmonic photonic crystal. 4. Fourier plasmonics. 5. Nanoscale optical field localization. 6. Conclusions and outlook -- 11. Dielectric-loaded plasmonic waveguide components. 1. Introduction. 2. Design of waveguide dimensions. 3. Sample preparation and near-field characterization. 4. Excitation and propagation of guided modes. 5. Waveguide bends and splitters. 6. Coupling between waveguides. 7. Waveguide-ring resonators. 8. Bragg gratings. 9. Discussion-- 12. Manipulating nanoparticles and enhancing spectroscopy with surface plasmons. 1. Introduction. 2. Propulsion of gold nanoparticles with surface plasmon polaritons. 3. Double resonance substrates for surface-enhanced raman spectroscopy. 4. Conclusions and outlook -- 13. Analysis of light scattering by nanoobjects on a plane surface via discrete sources method. 1. Introduction. 2. Light scattering by a nanorod. 3. Light scattering by a nanoshell. 4. Summary -- 14. Computational techniques for plasmonic antennas and waveguides. 1. Introduction. 2. Time domain solvers. 3. Frequency domain solvers. 4. Plasmonic antennas. 5. Plasmonic waveguides. 6. Advanced structures. 7. Conclusions