Magnetic and spintronic media have offered fundamental scientific subjects and technological applications. Magneto optic current transformer, ask latest information, magneto optic current transformer abstract,magneto optic current transformer report,magneto optic current transformer presentation pdf,doc,ppt,magneto optic current transformer technology discussion,magneto optic current transformer paper presentation details,magneto optic current transformer, ppt, pdf, report. Faraday effect and other magnetooptic effects in semiconductors. Terahertz magnetooptic sensorimager scientific reports.
This chapter describes the basic principles of magneto. Problems are included at the end of each chapter and a solutions set is available. In general, magnetooptic effects break time reversal symmetry locally i. The book is ideal for senior undergraduate and graduate courses, but. Magnetooptic definition of magnetooptic by merriamwebster. Due to their large size, current and voltage requirements tend to be excessive as well. A magnetooptic effect is any one of a number of phenomena in which an electromagnetic.
The main advantage of typical magnetooptic imagerimaging moi 1,2,3,4,5,6,7 over magnetic field imagerimaging mfi is the possibility of achieving higher spatial resolution by. The first textbook to provide indepth treatment of electroceramics with emphasis on applications in microelectronics, magnetoelectronics, spintronics, energy storage and harvesting, sensors and detectors, magnetics, and in electrooptics and acoustooptics electroceramics is a class of ceramic materials used primarily for their electrical properties. Magnetooptical recording june 27, 2014 40 the university of alabama. Download the seminar report for magneto optic current. Moct made out of sf57 materials can achieve higher sensitivity. Terahertz magnetooptic sensorimager scientific reports nature. Osa magnetooptical materials and designs for integrated. Magneto optic current free download as powerpoint presentation. Then, some representatives of magnetooptical materials of transmission faraday effect and reflection kerr types are described. Temperature coefficient of the angle of faraday rotation is. Important applications of these devices include polarization control, optical isolation.
Magneto optical thin films for onchip monolithic integration of nonreciprocal photonic devices. Magneto optical devices for op tical integrated circuits. Explore magnetooptical current transformer technology moct with free download of seminar report and ppt in pdf and doc format. Free download complete engineering seminar magneto optic current transformer seminar report pdf. There are many challenges in the design of these switches.
Large magnetooptical kerr effect and imaging of magnetic. The study of the given references will be necessary in order to understand the physics. All practical magnetooptic devices exploit one or bothof these two properties. Sorry, we are unable to provide the full text but you may find it at the following locations. For example, it can affect amplitude, phase, frequency, and so on. Magnetooptical current transformer technology moct. It is used in materials science research in devices such as the kerr microscope, to investigate the magnetization structure of materials. V a kotov 1, a f popkov 2, s v soloviev 2, m vasiliev 3, k alameh 3, m nurealam 3 and d e balabanov 1. It describes the changes to light reflected from a magnetized surface.
Magnetooptic investigation of magnetic flux penetration on a nanosecond timescale. Pdf magnetooptical thin films for onchip monolithic. Magnetooptical devices for optical integrated circuits. Balabanov no static citation data no static citation data cite. For magnetooptic interferometric devices, the magnetic field generator tends to be quite large compared to the optical transceivers deployed today. Magnetooptical sensor almost all transparent material exhibits the magnetooptical effect or faraday effect, but the effect of some of the material is very temperature dependent, and they are not suitable for the sensing material. However, transmission mode devicessuch as faraday and voigt effectshave received a great deal of attention in the past. In physics the magnetooptic kerr effect moke or the surface magnetooptic kerr effect smoke is one of the magnetooptic effects. Magnetooptical devices for optical integrated circuits intechopen. Magnetooptic kerr effect moke microscopy provides the most accessible platform to study the dynamics of spins, magnetic quasiparticles, and domain walls.
Sputter deposition of either doped yttrium iron garnets yig with seedlayers or seedlayer free terbium iron garnets tig will help realize integrated planar isolators. The book assumes a basic knowledge of optics, semiconductors and electromagnetic waves. A magnetooptical drive is a kind of optical disc drive capable of writing and rewriting data upon a magnetooptical disc. The surface magnetooptic kerr effect smoke has recently been demonstrated to be a powerful in situ characterization. Magnetic heterostructures with low coercivity for high. Also explore the seminar topics paper on magnetooptical current transformer technology moct with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year electronics and telecommunication. Faraday rotation waveguides are designed as a viable. Magnetooptical res ponse of dms can be understood by the. In 1983, just a year after the introduction of the compact disc, kees schouhamer immink and joseph braat presented the first experiments with erasable magneto.
Moke microscope magnetooptical kerr effect microscope pdf. Improvements involve materials technology of metal alloys with respect to sensitivity, stability, erasure and recording density. Download link for ece 7th sem ec6016 optical electronic devices engineering lecture handwritten notes are listed down for students to make perfect utilization and score maximum marks with our study materials. Reviews the properties and applications of photoelastic, acoustooptic, magnetooptic, electrooptic, and photorefractive materials this book deals with the basic physical properties and applications of photoelastic, acoustooptic, magnetooptic, electrooptic, and photorefractive materials. By growing mixed crystals or by doping of ferrites, it is possible to model the. Studies of the magnetooptic properties of ultrathin bismuthsubstituted iron garnet films have been performed for the first time for films of nominal thicknesses 0. The international congress on optical science and engineering, 1990, the hague, netherlands. Multicentre for surface magnetooptical kerr effect. The magnetooptical kerr effect moke has been intensively studied in a variety of ferro and ferrimagnetic materials as a powerful probe for electronic and magnetic properties 1,2,3 and for. Magneto optical devices for optical integrated circuits. Magnetooptic materials have unique physical properties that offer the opportunity of constructing devices with many special functions not possible from other photonic devices. The research activities on the phenomenon of magnetooptic effects has recently promulgated due to its versatile use in magnetooptic recordings for high density magnetic data storage, magnetic field sensors and its applications in magnetoelectronics. Magnetic heterostructures with low coercivity for highperformance magnetooptic devices. Published 6 december 2012 20 iop publishing ltd journal of physics d.
The discovery of magnetooptical effects evoked a new thought that the nature of light was an electromagnetic entity, and played a central role. The field contains the most important subjects in solid state physics, chemical physics, and electronic engineering. Therefore, properties of magnetooptical materials are different for two opposite directions of light propagation and optical nonreciprocal devices like the optical. Another disadvantage of using paramagnetic and ferromagnetic materials in magnetooptical devices is that these materials can adversely affect radiation properties other than the polarization angle. The magnetooptical chips principle is based on the faraday e. Magneto optic current transformer market global industry. Magnetooptic properties of ultrathin nanocrystalline. The second important property of the magnetooptical materials is a memory function.
The magneto optical device comprises a faraday rotator having nearly parallel surfaces and a zdirection magnetic easy axis. The invention provides smallsized, powersaving and easilyproducible magnetooptical devices. Soloviev, mikhail vasiliev, kamal alameh, mohammad alam and d. Magnetooptic definition is of, relating to, or utilizing the influence of a magnetic field upon light. Thickness dependent enhancement of the polar magnetooptic kerr effect in co magnetoplasmonic nanostructures. Magneto optic materials have unique physical properties that offer the opportunity of constructing devices with many special functions not possible from other photonic devices.
Magnetic heterostructures with low coercivity for highperformance magnetooptic devices by v. Ec6016 oed notes, optical electronic devices lecture. It uses the rotation of the plane of polarization by a. Magnetooptic device display download pdf info publication number. Optical isolators are unidirectional devices that employ the magnetooptical mo property of iron garnets to block the reflected light in almost all optical systems. Thickness dependent enhancement of the polar magnetooptic kerr.
Magnetooptical effects are applied in a number of magnetooptical devices. In this respect, the chip robustness to the pumpprobe fluences is also an important factor to consider. The present manual compiles a short introduction to methods and theory. Magneto optic current transformer seminar report pdf. Pdf magnetooptical devices for optical integrated circuits. Integrated acoustooptic and magnetooptic devices for. We present results on the magnetooptic properties of ferromagnetic films deposited on gaas. Magnetooptical metamaterials with extraordinarily strong magnetooptical effect xiaoguang luo,1,2 ming zhou,2 jingfeng liu,2,3 teng qiu,1 and zongfu yu2,a 1department of physics, southeast university, nanjing 211189, china 2department of electrical and computer engineering, university of wisconsinmadison, wisconsin 53706, usa 3college of electronic engineering, south china. Anna university regulation 20 ece ec6016 oed notes, optical electronic devices engineering lecture handwritten notes for all 5 units are provided below.
The magnetooptical device comprises a faraday rotator having nearly parallel surfaces and a zdirection magnetic easy axis. The linear magnetooptical kerr effect moke is often used to probe magnetism of ferromagnetic materials, but moke cannot be applied to collinear. With increasing drawbacks of conventional current transformers such as saturation of magnetic field under high current, electromagnetic interference and complicated insulation and cooling structures are driving the demand for advanced electrical equipment, for instance, magneto optic current transformer market over the. Magnetooptic devices magnetooptic devices schmitt, hans j. The device developed is a magnetooptic current transducer moct. A current measurement technique using the magnetooptic or faraday effect has been developed, tested, and demonstrated.
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