Soft and Hard Magnetic Materials:- Ferromagnetic
... permanent spin magnetic moments. However in the absence of an external field due to random orientation these materials do not have magnetic properties. When placed in an external fields the spin magnetic moments present on atoms and molecules try to orient themselves in the direction of the applied ...
... permanent spin magnetic moments. However in the absence of an external field due to random orientation these materials do not have magnetic properties. When placed in an external fields the spin magnetic moments present on atoms and molecules try to orient themselves in the direction of the applied ...
THz surface wave collapse on coated metal surfaces
... The theoretical study of this wave started with Sommerfeld’s study of EM propagation on a single metal wire [1], followed by Zenneck’s theoretical description of EM propagation on a flat metal surface [2]. Both studies were done more than a century ago. The Zenneck EM surface wave single mode soluti ...
... The theoretical study of this wave started with Sommerfeld’s study of EM propagation on a single metal wire [1], followed by Zenneck’s theoretical description of EM propagation on a flat metal surface [2]. Both studies were done more than a century ago. The Zenneck EM surface wave single mode soluti ...
Recent advances in transformation optics
... transformation optics. Many other novel effects and devices, such as illusion optics,27–30 optical black holes,31–34 beam shifters and rotators,35–37 lossless waveguide bends38–41 as well as various lenses42–50 have been proposed. In particular, combining the concept of complementary medium51 with t ...
... transformation optics. Many other novel effects and devices, such as illusion optics,27–30 optical black holes,31–34 beam shifters and rotators,35–37 lossless waveguide bends38–41 as well as various lenses42–50 have been proposed. In particular, combining the concept of complementary medium51 with t ...
Microphones
... higher frequencies. Manufacturers publish polar response plots taken at several frequencies and plotted simultaneously. In this manner the general polar-frequency response characteristic can be determined. Specialized Devices and Techniques Along with the devices discussed previously, there are a fe ...
... higher frequencies. Manufacturers publish polar response plots taken at several frequencies and plotted simultaneously. In this manner the general polar-frequency response characteristic can be determined. Specialized Devices and Techniques Along with the devices discussed previously, there are a fe ...
Mid Infrared digital holography and Terahertz imaging
... by reducing the hologram aperture [47]. Real objects never act as ideal reflectors and thus, in practice, one can always think of being in a case, more or less marked, of scattering object; what changes is just the percentage of scattered radiation that ends up in the recording device. The object be ...
... by reducing the hologram aperture [47]. Real objects never act as ideal reflectors and thus, in practice, one can always think of being in a case, more or less marked, of scattering object; what changes is just the percentage of scattered radiation that ends up in the recording device. The object be ...
chapter1 - Shodhganga
... sciences [11]. The synthesis of ferrite nanoparticles with controllable dimensionality and tailorable magnetic properties along with the understanding of the structure-property correlations have become one of the topics of fundamental scientific importance [12, 13]. Ferrite thin films have the poten ...
... sciences [11]. The synthesis of ferrite nanoparticles with controllable dimensionality and tailorable magnetic properties along with the understanding of the structure-property correlations have become one of the topics of fundamental scientific importance [12, 13]. Ferrite thin films have the poten ...
Negative Refraction and Left-handed electromagnetism in
... with unit cell dimensions less than the wavelength, consisting of interleaved arrays of wires ( ε < 0 ) and split ring resonators ( µ < 0 ). However the physical reality of negative refraction in these materials has been questioned 5. Furthermore these materials are highly absorptive, and unlikely t ...
... with unit cell dimensions less than the wavelength, consisting of interleaved arrays of wires ( ε < 0 ) and split ring resonators ( µ < 0 ). However the physical reality of negative refraction in these materials has been questioned 5. Furthermore these materials are highly absorptive, and unlikely t ...
8505
... IEC 60404-1 Ed. 2.0 b:2000 Magnetic materials - Part 1: Classification "Intended to classify commercially available magnetic materials. The term ""magnetic materials"" denotes substances where the application requires the existence of ferromagnetic or ferrimagnetic properties. The classification of ...
... IEC 60404-1 Ed. 2.0 b:2000 Magnetic materials - Part 1: Classification "Intended to classify commercially available magnetic materials. The term ""magnetic materials"" denotes substances where the application requires the existence of ferromagnetic or ferrimagnetic properties. The classification of ...
June 4 - The 7th International Conference on Surface Plasmon
... an image with sub-diffraction limited (SDL) resolution [1]. In this seminal paper, Pendry showed that by using a thin metallic slab, only few tens of nanometers thick, which is excited with light near its surface plasmon (SP) resonance frequency, an image with SDL size can be obtained, due to the hi ...
... an image with sub-diffraction limited (SDL) resolution [1]. In this seminal paper, Pendry showed that by using a thin metallic slab, only few tens of nanometers thick, which is excited with light near its surface plasmon (SP) resonance frequency, an image with SDL size can be obtained, due to the hi ...
All-angle negative refraction and imaging in a visible region
... dielectric matrix. When the separation between the nanowires is much smaller than the incident wavelength, these structures can be characterized as indefinite media, whose effective permittivities perpendicular and parallel to the wires are opposite in signs. Under this condition, the dispersion dia ...
... dielectric matrix. When the separation between the nanowires is much smaller than the incident wavelength, these structures can be characterized as indefinite media, whose effective permittivities perpendicular and parallel to the wires are opposite in signs. Under this condition, the dispersion dia ...
Nanofocusing of mid-infrared electromagnetic waves on graphene
... plasmon polariton (SPP) waveguide structures has attracted intensive attention due to its promising applications in the fields of sensing,1–3 tip-enhanced Raman spectroscopy,4 extreme ultraviolet (EUV) generation,5 and optical nonlinearity.6 Until now, various nanostructures, such as taped gaps,7 na ...
... plasmon polariton (SPP) waveguide structures has attracted intensive attention due to its promising applications in the fields of sensing,1–3 tip-enhanced Raman spectroscopy,4 extreme ultraviolet (EUV) generation,5 and optical nonlinearity.6 Until now, various nanostructures, such as taped gaps,7 na ...
Microwave Absorption by Magnetite: A possible
... or 0.046%. Therefore, generally, normal cells are transparent to the microwave radiation going through them. This relative microwave transparency does not holtl . true for tissues or cells that contain ferromagnetic materials such as magnetite. Due to the process of ferromagnetic resonance [Kittel, ...
... or 0.046%. Therefore, generally, normal cells are transparent to the microwave radiation going through them. This relative microwave transparency does not holtl . true for tissues or cells that contain ferromagnetic materials such as magnetite. Due to the process of ferromagnetic resonance [Kittel, ...
Finite element simulation of microphotonic lasing
... Interest in microphotonic lasing systems has been increasing over the past few years. As a result, it has become more important to be able to numerically simulate these lasing systems. Several finite difference time domain (FDTD) simulations of a four level gain medium embedded in a microphotonic sy ...
... Interest in microphotonic lasing systems has been increasing over the past few years. As a result, it has become more important to be able to numerically simulate these lasing systems. Several finite difference time domain (FDTD) simulations of a four level gain medium embedded in a microphotonic sy ...
Upholding the diffraction limit in the focusing of light and sound
... manipulation of fluorescence–based detection, such as stimulated emission depletion or on-andoff stochastic switching of fluorophore molecules [3], one can resolve subwavelength features of ...
... manipulation of fluorescence–based detection, such as stimulated emission depletion or on-andoff stochastic switching of fluorophore molecules [3], one can resolve subwavelength features of ...
A low-noise ferrite magnetic shield
... shielding because in addition to having high permeability 共 ⬃ 1030 – 1040兲, they also have much higher electrical resistivity 共 ⬃ 1 ⍀ m兲 than -metal. We measured magnetic fields inside a 10 cm diameter MnZn ferrite shield using a spin-exchange relaxation-free 共SERF兲 atomic magnetometer and foun ...
... shielding because in addition to having high permeability 共 ⬃ 1030 – 1040兲, they also have much higher electrical resistivity 共 ⬃ 1 ⍀ m兲 than -metal. We measured magnetic fields inside a 10 cm diameter MnZn ferrite shield using a spin-exchange relaxation-free 共SERF兲 atomic magnetometer and foun ...
I INTRODUCTION TO MAGNETISM AND MAGNETIC MATERIALS
... material's magnetization can easily reverse direction without dissipating much energy (hysteresis losses), while the material's with high resistivity prevents eddy currents in the core, another source of energy loss. In addition to low coercivity, the permeability and saturation magnetization are lo ...
... material's magnetization can easily reverse direction without dissipating much energy (hysteresis losses), while the material's with high resistivity prevents eddy currents in the core, another source of energy loss. In addition to low coercivity, the permeability and saturation magnetization are lo ...
Nonlinear optical properties of nanocomposite materials
... of incidence, the nonlinear phase experienced by the incident light beam. The phase shift was measured using the induced focusing technique [8]. For s-polarized light, the measured phase shift was found to decrease uniformly with the angle of incidence. This behaviour occurs because the light intens ...
... of incidence, the nonlinear phase experienced by the incident light beam. The phase shift was measured using the induced focusing technique [8]. For s-polarized light, the measured phase shift was found to decrease uniformly with the angle of incidence. This behaviour occurs because the light intens ...
Experiments on Elastic Cloaking in Thin Plates
... media goes well beyond the special field of electrodynamics at microwave, far-infrared, or optical frequencies. Yet, the detailed mathematics may well be distinct for different sorts of waves [3], for example, for tapered surface-plasmon-polariton waveguides [4], quantum-mechanical matter waves [5], ...
... media goes well beyond the special field of electrodynamics at microwave, far-infrared, or optical frequencies. Yet, the detailed mathematics may well be distinct for different sorts of waves [3], for example, for tapered surface-plasmon-polariton waveguides [4], quantum-mechanical matter waves [5], ...
Roadmap for Emerging Materials for Spintronic Device Applications
... (m2.1.1) Half-metallic behaviour and high MR by improving microstructure and control of interface states; (m2.1.2) High spin-filtering effects at RT by reducing structural and chemical defects; (m2.1.3) Tuning of perpendicular magnetic anisotropy; (m2.1.4) Development of new non-magnetic spinel-base ...
... (m2.1.1) Half-metallic behaviour and high MR by improving microstructure and control of interface states; (m2.1.2) High spin-filtering effects at RT by reducing structural and chemical defects; (m2.1.3) Tuning of perpendicular magnetic anisotropy; (m2.1.4) Development of new non-magnetic spinel-base ...
Structure and magnetic properties of NIFe/SiO2 and Co/SiO2 nano
... layers. The highest packing density fraction achieved is 92%, and there appears to be possibility to further densify the nanopowder. The thickness of the layer is determined by the mass of powder in each individual detonation. By increasing the mass of the powder for each detonation, the thickness o ...
... layers. The highest packing density fraction achieved is 92%, and there appears to be possibility to further densify the nanopowder. The thickness of the layer is determined by the mass of powder in each individual detonation. By increasing the mass of the powder for each detonation, the thickness o ...
EMI_PG 1 - Boyd Corporation
... Introduction Electromagnetic interference (EMI), also known as radio frequency interference (RFI) when in radio frequency, is caused by undesirable radiated electromagnetic fields, or conducted voltages or current from an external source, which interferes with the safe and stable operations of an ele ...
... Introduction Electromagnetic interference (EMI), also known as radio frequency interference (RFI) when in radio frequency, is caused by undesirable radiated electromagnetic fields, or conducted voltages or current from an external source, which interferes with the safe and stable operations of an ele ...
han_2000_apl
... Figure 2(b) and (c) are obtained at a room humidity concentration of 50%. Since no water vapor line lies at 0.84 THz, little difference is observed when a THz waveform is taken under a different humidity condition. However, when the repetition rate of the second harmonic pulse train was tuned to 1. ...
... Figure 2(b) and (c) are obtained at a room humidity concentration of 50%. Since no water vapor line lies at 0.84 THz, little difference is observed when a THz waveform is taken under a different humidity condition. However, when the repetition rate of the second harmonic pulse train was tuned to 1. ...
D12 in docx
... such invisibility cloaks also properly reconstruct the phase of the wave. To test this aspect, the KIT partner has built a dedicated imaging interferometer for detailed optical characterization (see Fig.D12.2). Using this refined characterization set-up, the phase images shown in Fig.D12.3 have been ...
... such invisibility cloaks also properly reconstruct the phase of the wave. To test this aspect, the KIT partner has built a dedicated imaging interferometer for detailed optical characterization (see Fig.D12.2). Using this refined characterization set-up, the phase images shown in Fig.D12.3 have been ...
Asymmetric transmission of linearly polarized waves and
... permeability were experimentally demonstrated using MMs [2]. Such materials exhibit many exotic properties such as left-handed behavior [3–5], sub-wavelength imaging [6–8], transmission enhancement [9] and tunability [10,11]. In this study, we focus on chiral metamaterials (CMMs), which are a subset ...
... permeability were experimentally demonstrated using MMs [2]. Such materials exhibit many exotic properties such as left-handed behavior [3–5], sub-wavelength imaging [6–8], transmission enhancement [9] and tunability [10,11]. In this study, we focus on chiral metamaterials (CMMs), which are a subset ...