near-field radiative transfer: thermal radiation
... Francoeur, Mathieu, "NEAR-FIELD RADIATIVE TRANSFER: THERMAL RADIATION, THERMOPHOTOVOLTAIC POWER GENERATION AND OPTICAL CHARACTERIZATION" (2010). University of Kentucky Doctoral Dissertations. Paper 58. ...
... Francoeur, Mathieu, "NEAR-FIELD RADIATIVE TRANSFER: THERMAL RADIATION, THERMOPHOTOVOLTAIC POWER GENERATION AND OPTICAL CHARACTERIZATION" (2010). University of Kentucky Doctoral Dissertations. Paper 58. ...
engineering of complex optical fields and its
... particle manipulation, optical nanofabrication, beam shaping and optical imaging. The dissertation is organized in two parts. In the first part, different aspects of the optical field are controlled with different approaches used in four projects. First, a diffractive optics element (DOE) Simulator ...
... particle manipulation, optical nanofabrication, beam shaping and optical imaging. The dissertation is organized in two parts. In the first part, different aspects of the optical field are controlled with different approaches used in four projects. First, a diffractive optics element (DOE) Simulator ...
Elements of Simulation
... • Wire (monopoles and dipoles) Low gain (4 - 8 dB) not focused • Horn (tapered waveguide) Intermediate gain (23 dB), 10˚ beam focus Often used to feed dish antenna • Reflecting (dish, many wavelengths in diameter) High gain (45 dB), 3˚ beam focus • Array (multiple phased antennas in pattern) Adjusta ...
... • Wire (monopoles and dipoles) Low gain (4 - 8 dB) not focused • Horn (tapered waveguide) Intermediate gain (23 dB), 10˚ beam focus Often used to feed dish antenna • Reflecting (dish, many wavelengths in diameter) High gain (45 dB), 3˚ beam focus • Array (multiple phased antennas in pattern) Adjusta ...
Nanoconcentration of terahertz radiation in
... terahertz radiation (frequency 1 − 10 THz or vacuum wavelength λ 0 = 300 − 30 μ m). This will allow for the nanoscale spatial resolution for THz imaging [10] and introduce the THz spectroscopy on the nanoscale, taking full advantage of the rich THz spectra and submicron to nanoscale structures of ma ...
... terahertz radiation (frequency 1 − 10 THz or vacuum wavelength λ 0 = 300 − 30 μ m). This will allow for the nanoscale spatial resolution for THz imaging [10] and introduce the THz spectroscopy on the nanoscale, taking full advantage of the rich THz spectra and submicron to nanoscale structures of ma ...
Open the publication - UEF Electronic Publications
... Optical properties of structured media are controlled by the local electric and magnetic fields to a great extent. Nanostructuring allows one to customize the macroscopic linear and nonlinear optical properties of these artificial media by engineering the local fields precisely. In this thesis, loca ...
... Optical properties of structured media are controlled by the local electric and magnetic fields to a great extent. Nanostructuring allows one to customize the macroscopic linear and nonlinear optical properties of these artificial media by engineering the local fields precisely. In this thesis, loca ...
Asymmetric surface plasmon polariton emission by a dipole emitter
... The problem of SPP radiation (or, by virtue of time-reversal symmetry, absorption9 ) by classical point dipoles is ubiquitous in theoretical plasmonics as it provides an accurate and efficient model for understanding a broad spectrum of phenomena in light-matter interaction. This includes the intera ...
... The problem of SPP radiation (or, by virtue of time-reversal symmetry, absorption9 ) by classical point dipoles is ubiquitous in theoretical plasmonics as it provides an accurate and efficient model for understanding a broad spectrum of phenomena in light-matter interaction. This includes the intera ...
NVIS - Raynet HF
... a) Bend the whip back over the vehicle as flat as possible without breaking (see Military on TV) b) Bend the whip back away from the vehicle at least 45°- OK when stationary, but not recommended mobile ! - Keep your distance ! You can use loops – Magnetic Loops are the most favoured Take care as hi ...
... a) Bend the whip back over the vehicle as flat as possible without breaking (see Military on TV) b) Bend the whip back away from the vehicle at least 45°- OK when stationary, but not recommended mobile ! - Keep your distance ! You can use loops – Magnetic Loops are the most favoured Take care as hi ...
NVIS - RAYNET
... a) Bend the whip back over the vehicle as flat as possible without breaking (see Military on TV) b) Bend the whip back away from the vehicle at least 45°- OK when stationary, but not recommended mobile ! - Keep your distance ! You can use loops – Magnetic Loops are the most favoured Take care as hi ...
... a) Bend the whip back over the vehicle as flat as possible without breaking (see Military on TV) b) Bend the whip back away from the vehicle at least 45°- OK when stationary, but not recommended mobile ! - Keep your distance ! You can use loops – Magnetic Loops are the most favoured Take care as hi ...
NVIS
... a) Bend the whip back over the vehicle as flat as possible without breaking (see Military on TV) b) Bend the whip back away from the vehicle at least 45°- OK when stationary, but not recommended mobile ! - Keep your distance ! You can use loops – Magnetic Loops are the most favoured Take care as hi ...
... a) Bend the whip back over the vehicle as flat as possible without breaking (see Military on TV) b) Bend the whip back away from the vehicle at least 45°- OK when stationary, but not recommended mobile ! - Keep your distance ! You can use loops – Magnetic Loops are the most favoured Take care as hi ...
IEEE Standards - draft standard template
... This document is intended to serve as a standard dictionary of terms and definitions commonly used and related by usage to activities pertaining to electromagnetic compatibility (EMC), including electromagnetic environmental effects (E3). The title of this document was changed in 1998 to reflect the ...
... This document is intended to serve as a standard dictionary of terms and definitions commonly used and related by usage to activities pertaining to electromagnetic compatibility (EMC), including electromagnetic environmental effects (E3). The title of this document was changed in 1998 to reflect the ...
MAC-200
... that most have more than one antenna, yet the only place where all of these antennas come together is in the radio room. Only there is it possible to manage the antenna in use and provide matching for all of them. Unfortunately, existing tools do not go far enough. From manual antenna switches, to c ...
... that most have more than one antenna, yet the only place where all of these antennas come together is in the radio room. Only there is it possible to manage the antenna in use and provide matching for all of them. Unfortunately, existing tools do not go far enough. From manual antenna switches, to c ...
Installation and Operations Manual
... The Smartuner™ reputation has grown to legend status because it is simple to use and a highly reliable piece of electronic equipment. A SMARTUNER will provide maximum transfer of radio energy from any HF transmitter to any end-fed HF antenna within the frequency and power limits of its specification ...
... The Smartuner™ reputation has grown to legend status because it is simple to use and a highly reliable piece of electronic equipment. A SMARTUNER will provide maximum transfer of radio energy from any HF transmitter to any end-fed HF antenna within the frequency and power limits of its specification ...
SG-239 Smartuner Manual
... 3. Extensive tuning paths are used to test different antenna situations. The initial tuning of a new frequency (or switched antenna) may require up to two seconds. Any further tuning is accomplished in a matter of milliseconds if jumper JP3 (Tune From Memory) is in its default position. 4. Facilitie ...
... 3. Extensive tuning paths are used to test different antenna situations. The initial tuning of a new frequency (or switched antenna) may require up to two seconds. Any further tuning is accomplished in a matter of milliseconds if jumper JP3 (Tune From Memory) is in its default position. 4. Facilitie ...
Resolving EMI Issues to Optimize Accelerator
... EMI field. The twisted pair cables were terminated on both ends, as would be the case in a normal installation. Induced voltage measurements were made while the HVCM was operating between 95 kV and 130 kV output, at 300 kW to 1,900 kW average power with about a 1.1 ms output pulse at a 60 Hz pulse r ...
... EMI field. The twisted pair cables were terminated on both ends, as would be the case in a normal installation. Induced voltage measurements were made while the HVCM was operating between 95 kV and 130 kV output, at 300 kW to 1,900 kW average power with about a 1.1 ms output pulse at a 60 Hz pulse r ...
On the Nature of the Evanescent Wave
... as we would expect for energy carried by electromagnetic waves. Therefore electromagnetic energy flows with the same speed as the wave. This may sound as a tautology, but, as we will see, nothing can be taken for granted. The presence of an interface (i.e., discontinuity in the medium) means that th ...
... as we would expect for energy carried by electromagnetic waves. Therefore electromagnetic energy flows with the same speed as the wave. This may sound as a tautology, but, as we will see, nothing can be taken for granted. The presence of an interface (i.e., discontinuity in the medium) means that th ...
Propagation and focusing of optical fields
... The filter Ĥ is an oscillating function for (kx2 + ky2 ) < k 2 and an exponentially decreasing function for (kx2 + ky2 ) > k 2 . Thus, if the image plane is sufficiently separated from the object plane, the contribution of the decaying parts (evanescent waves) is zero and the integration can be red ...
... The filter Ĥ is an oscillating function for (kx2 + ky2 ) < k 2 and an exponentially decreasing function for (kx2 + ky2 ) > k 2 . Thus, if the image plane is sufficiently separated from the object plane, the contribution of the decaying parts (evanescent waves) is zero and the integration can be red ...
Far-Field Optical Superlens
... evanescent wavevectors and that of the FSL grating: δ ) 2π/∆k, where ∆k ) |kobj - kΛ|. For example, an object with a 120 nm spatial period projects far-field fringes with δ ) 600 nm. Thus, using this far-field superlens optical microscope, we showed far-field imaging of objects below the diffraction ...
... evanescent wavevectors and that of the FSL grating: δ ) 2π/∆k, where ∆k ) |kobj - kΛ|. For example, an object with a 120 nm spatial period projects far-field fringes with δ ) 600 nm. Thus, using this far-field superlens optical microscope, we showed far-field imaging of objects below the diffraction ...
A Calculation of Electric Field Strengths for Light in a Multilayer Thin
... the wave as it propagates through the medium, while kj is an absorption coefficient that will cause the wave to “die out” as it propagates through the medium. These constants are characteristic of the material through which the wave is propagating and the frequency of the incident wave. Also useful ...
... the wave as it propagates through the medium, while kj is an absorption coefficient that will cause the wave to “die out” as it propagates through the medium. These constants are characteristic of the material through which the wave is propagating and the frequency of the incident wave. Also useful ...
9 Exact Scattering and Absorption by Spheres: Lorenz
... There derivation of the Mie formulas makes use of the boundary conditions of the electric and magnetic fields at the sphere surface. For this purpose the incident plane wave has to be described by a series of spherical waves. This is the key to the solution. For derivations and further discussions, ...
... There derivation of the Mie formulas makes use of the boundary conditions of the electric and magnetic fields at the sphere surface. For this purpose the incident plane wave has to be described by a series of spherical waves. This is the key to the solution. For derivations and further discussions, ...
Near and far field
The near field (or near-field) and far field (or far-field) are regions of the electromagnetic field around an object, such as a transmitting antenna, or the result of radiation scattering off an object. Non-radiative 'near-field' behaviors of electromagnetic fields dominate close to the antenna or scattering object, while electromagnetic radiation 'far-field' behaviors dominate at greater distances. Far-field E and B field strength decreases inversely with distance from the source, resulting in an inverse-square law for the radiated power intensity of electromagnetic radiation. By contrast, near-field E and B strength decrease more rapidly with distance (with inverse-distance squared or cubed), resulting in relative lack of near-field effects within a few wavelengths of the radiator.