Electromagnetic And Photonic Simulation For The Beginner Finite Difference Frequency Domain In Matlab
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Electromagnetic and Photonic Simulation for the Beginner: Finite-Difference Frequency-Domain in MATLAB®
This book teaches the finite-difference frequency-domain (FDFD) method from the simplest concepts to advanced three-dimensional simulations. It uses plain language and high-quality graphics to help the complete beginner grasp all the concepts quickly and visually. This single resource includes everything needed to simulate a wide variety of different electromagnetic and photonic devices. The book is filled with helpful guidance and computational wisdom that will help the reader easily simulate their own devices and more easily learn and implement other methods in computational electromagnetics. Special techniques in MATLAB® are presented that will allow the reader to write their own FDFD programs. Key concepts in electromagnetics are reviewed so the reader can fully understand the calculations happening in FDFD. A powerful method for implementing the finite-difference method is taught that will enable the reader to solve entirely new differential equations and sets of differential equations in mere minutes. Separate chapters are included that describe how Maxwell’s equations are approximated using finite-differences and how outgoing waves can be absorbed using a perfectly matched layer absorbing boundary. With this background, a chapter describes how to calculate guided modes in waveguides and transmission lines. The effective index method is taught as way to model many three-dimensional devices in just two-dimensions. Another chapter describes how to calculate photonic band diagrams and isofrequency contours to quickly estimate the properties of periodic structures like photonic crystals. Next, a chapter presents how to analyze diffraction gratings and calculate the power coupled into each diffraction order. This book shows that many devices can be simulated in the context of a diffraction grating including guided-mode resonance filters, photonic crystals, polarizers, metamaterials, frequency selective surfaces, and metasurfaces. Plane wave sources, Gaussian beam sources, and guided-mode sources are all described in detail, allowing devices to be simulated in multiple ways. An optical integrated circuit is simulated using the effective index method to build a two-dimensional model of the 3D device and then launch a guided-mode source into the circuit. A chapter is included to describe how the code can be modified to easily perform parameter sweeps, such as plotting reflection and transmission as a function of frequency, wavelength, angle of incidence, or a dimension of the device. The last chapter is advanced and teaches FDFD for three-dimensional devices composed of anisotropic materials. It includes simulations of a crossed grating, a doubly-periodic guided-mode resonance filter, a frequency selective surface, and an invisibility cloak. The chapter also includes a parameter retrieval from a left-handed metamaterial. The book includes all the MATLAB codes and detailed explanations of all programs. This will allow the reader to easily modify the codes to simulate their own ideas and devices. The author has created a website where the MATLAB codes can be downloaded, errata can be seen, and other learning resources can be accessed. This is an ideal book for both an undergraduate elective course as well as a graduate course in computational electromagnetics because it covers the background material so well and includes examples of many different types of devices that will be of interest to a very wide audience.
Plasmonic Optical Fiber Biosensors
Author: Christophe Caucheteur
language: en
Publisher: Artech House
Release Date: 2023-04-30
This book provides a thorough vision of the current trends in plasmonic optical fiber biochemical sensing. It gathers the most recent technological information and shows the maturity reached by the different subsequent technologies. Demonstrating roadmaps for the design process and implementation of plasmonic optical fiber biochemical sensors, the book bridges the gap between theory and application. With this philosophy, understanding key physical properties is of paramount importance for the efficient design of sensing platforms that will meet target specifications. You will learn about the role of the fiber configuration and the functional coating on the properties of the resulting optrodes. You will also get an encompassing overview on all optical fiber configurations used for plasmonic sensing thus far, especially on the progress made over the last decade and rendering the technology compatible for use in real conditions. The book presents both fundamental aspects and advanced applications while focusing on recent and emerging fields of research, such as the use of tilted fiber Bragg gratings, the integration of sensors in situ, the use of smart interrogation techniques, and much more. This is a unique reference for both beginners and experts in optical fiber-based sensors, especially for industrial engineers working in biophotonics and biochemical sensing, as it presents state-of-the-art design procedures and sensing features. The book’s theoretical background combined with recent advances of plasmonic-based optical fiber technologies also make it highly beneficial for all researchers, academics, and students specialized or interested in this flourishing and promising discipline.
Micro- and Nano-Systems in 21st-Century
Author: Vinayak Pachkawade
language: en
Publisher: Springer Nature
Release Date: 2025-08-16
This book covers the principles, operation, and applications of the modern micro-nano devices being developed to address global twenty-first-century challenges. The subject of this book is Micro-Nano Systems in the twenty-first century. The major areas of applications cover medical diagnostics, 5G/6G communication, inertial, space, geography and resource exploration, defense, aviation, etc. This book provides the readers with a comprehensive outlook on the topics to help understand the physical scientific principles and techniques being applied to the design and development of devices, sensors, and actuators using Micro-Nano System Technology (MST). The book addresses fabrication technologies such as CMOS-MEMS, Piezoelectric, and other special MEMS processes, where novel transducers are being designed and developed for ultrasound, energy harvesting, data storage, computing, inertial, fluidics, optomechanical, etc. The book serves as a tutorial guide to graduate students, researchers, engineers, other large technical audiences, and also the general public to understand these topics in a systematic and more thorough way by providing a range of illustrations, comparative charts/tables, equations, analysis, and plots/graphs. In a nutshell, the book is designed to provide a didactic approach to explaining scientific facts and figures in more lucid ways. The students will get the engineering and scientific know-how of modern micro and nano system technology, a range of transduction principles, and potential applied application areas. Readers will understand (through first-hand equations, principles of operations, solved examples, notes, several illustrations, and graphs) how to design, and develop a range of applications in microsystem technology.