Download or read book Modelling of Plasmonic and Graphene Nanodevices written by Javier Munárriz Arrieta and published by Springer. This book was released on 2014-05-28 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: The thesis covers a broad range of electronic, optical and opto-electronic devices and various predicted physical effects. In particular, it examines the quantum interference transistor effect in graphene nanorings; tunable spin-filtering and spin-dependent negative differential resistance in composite heterostructures based on graphene and ferromagnetic materials; optical and novel electro-optical bistability and hysteresis in compound systems and the real-time control of radiation patterns of optical nanoantennas. The direction of the main radiation lobe of a regular plasmonic array can be changed abruptly by small variations in external control parameters. This optical effect, apart from its relevance for applications, is a revealing example of the Umklapp process and, thus, is a visual manifestation of one of the most fundamental laws of solid state physics: the conservation of the quasi-momentum to within a reciprocal lattice vector. The thesis analyzes not only results for particular device designs but also a variety of advanced numerical methods which are extended by the author and described in detail. These methods can be used as a sound starting point for further research.
Download or read book Modelling of Plasmonic and Graphene Nanodevices written by Javier Munárriz Arrieta and published by Springer. This book was released on 2014-06-01 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: The thesis covers a broad range of electronic, optical and opto-electronic devices and various predicted physical effects. In particular, it examines the quantum interference transistor effect in graphene nanorings; tunable spin-filtering and spin-dependent negative differential resistance in composite heterostructures based on graphene and ferromagnetic materials; optical and novel electro-optical bistability and hysteresis in compound systems and the real-time control of radiation patterns of optical nanoantennas. The direction of the main radiation lobe of a regular plasmonic array can be changed abruptly by small variations in external control parameters. This optical effect, apart from its relevance for applications, is a revealing example of the Umklapp process and, thus, is a visual manifestation of one of the most fundamental laws of solid state physics: the conservation of the quasi-momentum to within a reciprocal lattice vector. The thesis analyzes not only results for particular device designs but also a variety of advanced numerical methods which are extended by the author and described in detail. These methods can be used as a sound starting point for further research.
Download or read book Modelling of Plasmonic and Graphene Nanodevices written by Osvaldo Olivar and published by . This book was released on 2017-05-17 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: The thesis covers a broad range of electronic, optical and opto-electronic devices and various predicted physical effects. In particular, it examines the quantum interference transistor effect in graphene nanorings; tunable spin-filtering and spin-dependent negative differential resistance in composite heterostructures based on graphene and ferromagnetic materials; optical and novel electro-optical bistability and hysteresis in compound systems and the real-time control of radiation patterns of optical nanoantennas. The direction of the main radiation lobe of a regular plasmonic array can be changed abruptly by small variations in external control parameters. This optical effect, apart from its relevance for applications, is a revealing example of the Umklapp process and, thus, is a visual manifestation of one of the most fundamental laws of solid state physics: the conservation of the quasi-momentum to within a reciprocal lattice vector.
Download or read book Graphene Nanostructures written by Yaser M. Banadaki and published by CRC Press. This book was released on 2019-07-16 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tremendous innovations in electronics and photonics over the past few decades have resulted in the downsizing of transistors in integrated circuits, which are now approaching atomic scales. This will soon result in the creation of a growing knowledge gap between the underlying technology and state-of-the-art electronic device modeling and simulations. This book bridges the gap by presenting cutting-edge research in the computational analysis and mathematical modeling of graphene nanostructures as well as the recent progress on graphene transistors for nanoscale circuits. It inspires and educates fellow circuit designers and students in the field of emerging low-power and high-performance circuit designs based on graphene. While most of the books focus on the synthesis, fabrication, and characterization of graphene, this book shines a light on graphene models and their circuit simulations and applications in photonics. It will serve as a textbook for graduate-level courses in nanoscale electronics and photonics design and appeal to anyone involved in electrical engineering, applied physics, materials science, or nanotechnology research.
Download or read book Graphene Photonics Optoelectronics and Plasmonics written by Qiaoliang Bao and published by CRC Press. This book was released on 2017-09-07 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: Graphene has been hailed as a rising star in photonics and optoelectronics. The wonderful optical properties of graphene make possible the multiple functions of signal emission, transmission, modulation, and detection to be realized in one material. This book compiles and details cutting-edge research in graphene photonics, plasmonics, and broadband optoelectronic devices. Particularly, it emphasizes the ability to integrate graphene photonics onto the silicon platform to afford broadband operation in light routing and amplification, which involves components such as the polarizer, the modulator, and the photodetector. It also includes other functions such as a saturable absorber and an optical limiter. The book provides a comprehensive overview of the interrelationship between the operation of these conceptually new photonic devices and the fundamental physics of graphene involved in the interactions between graphene and light.
Download or read book Modelling of Plasmonic and Graphene Nanodevices written by Joshua Beil and published by . This book was released on 2017-05-08 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: The thesis covers a broad range of electronic, optical and opto-electronic devices and various predicted physical effects. In particular, it examines the quantum interference transistor effect in graphene nanorings; tunable spin-filtering and spin-dependent negative differential resistance in composite heterostructures based on graphene and ferromagnetic materials; optical and novel electro-optical bistability and hysteresis in compound systems and the real-time control of radiation patterns of optical nanoantennas.
Download or read book Modelling of Plasmodic and Graphene Nanodevices written by and published by . This book was released on 2013 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Introduction To Graphene Plasmonics written by P.A.D Goncalves and published by World Scientific. This book was released on 2016-04-25 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is meant as an introduction to graphene plasmonics and aims at the advanced undergraduate and graduate students entering the field of plasmonics in graphene. In it different theoretical methods are introduced, starting with an elementary description of graphene plasmonics and evolving towards more advanced topics. This book is essentially self-contained and brings together a number of different topics about the field that are scattered in the vast literature. The text is composed of eleven chapters and of a set of detailed appendices. It can be read in two different ways: Reading only the chapters to get acquainted with the field of plasmonics in graphene or reading the chapters and studying the appendices to get a working knowledge of the topic. The study of the material in this book will bring the students to the forefront of the research in this field.
Download or read book Plasmon enhanced light matter interactions written by Peng Yu and published by Springer Nature. This book was released on 2022-03-01 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights cutting-edge research in surface plasmons, discussing the different types and providing a comprehensive overview of their applications. Surface plasmons (SPs) receive special attention in nanoscience and nanotechnology due to their unique optical, electrical, magnetic, and catalytic properties when operating at the nanoscale. The excitation of SPs in metal nanostructures enables the manipulation of light beyond the diffraction limit, which can be utilized for enhancing and tailoring light-matter interactions and developing ultra-compact high-performance nanophotonic devices for various applications. With clear and understandable illustrations, tables, and descriptions, this book provides physicists, materials scientists, chemists, engineers, and their students with a fundamental understanding of surface plasmons and device applications as a basis for future developments.
Download or read book Narrow Plasmon Resonances in Hybrid Systems written by Philip A. Thomas and published by Springer. This book was released on 2018-08-16 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in understanding the interactions between light and subwavelength materials have enabled the author and his collaborators to tailor unique optical responses at the nanoscale. In particular, metallic nanostructures capable of supporting surface plasmons can be designed to possess spectrally narrow plasmon resonances, which are of particular interest due to their exceptional sensitivity to their local environment. In turn, combining plasmonic nanostructures with other materials in hybrid systems allows this sensitivity to be exploited in a broad range of applications. In this book the author explores two different approaches to attaining narrow plasmon resonances: in gold nanoparticle arrays by utilising diffraction coupling, and in copper thin films covered by a protective graphene layer. The performance of these resonances is then considered in a number of applications. Nanoparticle arrays are used along with an atomic heterostructure as elements in a nanomechanical electro-optical modulator that is capable of strong, broadband modulation. Strong coupling between diffraction-coupled plasmon resonances and a gold nanoparticle array and guided modes in a dielectric slab is used to construct a hybrid waveguide. Lastly, the extreme phase sensitivity of graphene-protected copper is used to detect trace quantities of small toxins in solution far below the detection limit of commercial surface plasmon resonance sensors.
Download or read book Recent Advances in Graphene Nanophotonics written by Shobhit K. Patel and published by Springer Nature. This book was released on 2023-05-20 with total page 379 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are growing advantages to the use of graphene-based nanophotonics in communication, sensing, security, safety, spectroscopy, manufacturing, biomedicine, agriculture, imaging, and other fields. These advantages, as well as the numerous challenges associated with this technology and proposed solutions to these challenges, are summarized in this book. The key objective of the book is to serve as a single-source reference for the rapidly expanding application aspects of the technology of graphene-based nanophotonics, as well as the number of modules required for their successful implementation. This book seeks to give readers a comprehensive understanding of several elements of graphene-based nanophotonics, such as emerging application areas, the design and modelling of sensors, absorbers, optical fiber, encoders, etc. A complete view of the progress and breakthroughs in novel materials for sensing, detecting and encoding technology is presented. The book also emphasizes the consequences of THz signals on human health, as well as the environmental components of THz. This book will be of tremendous value for those with an interest in electronic engineering, particularly those keeping an eye on this emerging technology.
Download or read book Graphene based Nanodevice Design and Modeling written by Huaixiu Zheng and published by . This book was released on 2007 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Introduction to Plasmonics written by Sabine Szunerits and published by CRC Press. This book was released on 2015-03-24 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plasmonics is a highly dynamic field, and a number of researchers and scientists from other disciplines have become involved in it. This book presents the most widely employed approaches to plasmonics and the numerous applications associated with it. There are several underlying elements in plasmonics research. Advances in nanoscience and nanotechn
Download or read book Multiphysics Modeling of Graphene based Plasmonic Devices for Terahertz Band Communication written by Xavier Cantos Roman and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Terahertz Band (0.1-10 THz) is envisioned as a key a wireless technology that will enable Terabit-per-second data rate, which is expected to become a reality within the next five years. One of the main problems of this technology is the lack of compact high-power signal sources in order to overcome the very high path loss. Novel plasmonic devices based on nanomaterials such as graphene are a new promising alternative capable to efficiently operate at THz frequencies. In this thesis, the performance of a graphene-based plasmonic device for on-chip direct generation, modulation, and detection of THz signals is proposed, modeled and simulated using a finite-difference-based multi-physics simulation platform, which can handle both hydrodynamic model equations and Maxwell's equations. The device is based on a gated High Electron Mobility Transistor (HEMT) with graphene as the 2DEG channel, where a THz plasmonic signal is generated by implementing an asymmetric boundary condition at the source and drain. Moreover, this setup offers the possibility to modulate the generated signal by changing the applied current density.
Download or read book Infrared Nano Spectroscopy and Nano Imaging of Graphene Plasmons written by Zhe Fei and published by . This book was released on 2014 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation presents infrared nano-spectroscopy and nano-imaging studies of graphene plasmons using scattering-type scanning near-field microscope - a unique technique allowing efficient excitation and high-resolution imaging of graphene plasmons. With this technique, we show in real space that common graphene/SiO2/Si back-gated structure support propagating surface plasmons in the infrared frequencies. The observed plasmons are highly confined surface modes with a wavelength around 200 nm that are conveniently tunable by the back gate voltages. In addition, we perform spectroscopic studies on graphene by varying the probing frequencies. The spectroscopy results not only show direct signature of graphene plasmons but also provide evidence of strong coupling between graphene plasmons and SiO2 optical phonons. Furthermore, we investigate the plasmonic properties of bernal-stacking bilayer graphene (BLG) and find that BLG supports gate-tunable infrared plasmons with higher confinement compared to graphene and randomly stacked graphene layers. Moreover, BLG plasmons can be turned off completely in wide gate voltage close to the charge neutrality point. Those unique plasmonic properties are attributed to both interlayer tunneling and bandgap opening inBLG. Finally, we are able to map and characterize grain boundaries inside graphene film fabricated with chemical vapor deposition (CVD) method by launching surface plasmons. We found grain boundaries, as well as other line defects in CVD graphene, trigger distinct plasmonic twin fringes patterns due to plasmon interference. Theoretical modeling and analysis unveil unique electronic properties associated with grain boundaries.
Download or read book 2D Materials written by Phaedon Avouris and published by Cambridge University Press. This book was released on 2017-06-29 with total page 521 pages. Available in PDF, EPUB and Kindle. Book excerpt: Learn about the most recent advances in 2D materials with this comprehensive and accessible text. Providing all the necessary materials science and physics background, leading experts discuss the fundamental properties of a wide range of 2D materials, and their potential applications in electronic, optoelectronic and photonic devices. Several important classes of materials are covered, from more established ones such as graphene, hexagonal boron nitride, and transition metal dichalcogenides, to new and emerging materials such as black phosphorus, silicene, and germanene. Readers will gain an in-depth understanding of the electronic structure and optical, thermal, mechanical, vibrational, spin and plasmonic properties of each material, as well as the different techniques that can be used for their synthesis. Presenting a unified perspective on 2D materials, this is an excellent resource for graduate students, researchers and practitioners working in nanotechnology, nanoelectronics, nanophotonics, condensed matter physics, and chemistry.
Download or read book Graphene Based Terahertz Electronics and Plasmonics written by Vladimir Mitin and published by CRC Press. This book was released on 2020-11-23 with total page 917 pages. Available in PDF, EPUB and Kindle. Book excerpt: Graphene demonstrates interesting electrical, optical, and optoelectronic properties. A number of other one-atom-thick material structures have been discovered and studied. Industrially applicable technologies for these structures are currently under active development. In spite of enormous research in the area of devices based on graphene, the number of extensive review publications on THz devices based on graphene is small. This review volume would fill the gap. Researchers and engineers working in the fields of electronics and plasmonics can use it to understand the influence of plasmonics on device performance. The book can be also be used as a required text for doctorate courses and as a supplementary material for postgraduate courses. The material presented in the book is reviewed in detail in Chapter 1. Chapter 2 discusses the electronic and plasmonic properties of graphene and heterostructures based on graphene for all devices. Chapters 3–7 focus on the concepts of detectors and emitters with a special emphasis on plasmonic enhancement of those devices as well as on population inversion and lasing.
