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Phenomenon in capacitor discharging
Dielectric absorption is the name given to the effect by which a previously charged capacitor discharges incompletely when discharged, even over many
Dielectric_absorption
Fixed-value capacitor using ceramic
capacitor is a fixed-value capacitor where the ceramic material acts as the dielectric. It is constructed of two or more alternating layers of ceramic and a
Ceramic_capacitor
Electronic component
Capacitors made with any type of dielectric material show some level of "dielectric absorption" or "soakage". On discharging a capacitor and disconnecting it,
Capacitor
Type of electrolytic capacitor
discharging, a phenomenon that is also called dielectric relaxation, "soakage" or "battery action". Dielectric absorption can cause a problem in circuits where
Tantalum_capacitor
Type of capacitor
discharging, a phenomenon that is also called dielectric relaxation, "soakage" or "battery action". Dielectric absorption may be a problem in circuits where very
Electrolytic_capacitor
Electrical capacitor with an insulating plastic film as the dielectric
film as the dielectric, sometimes combined with paper as carrier of the electrodes. The dielectric films, depending on the desired dielectric strength,
Film_capacitor
Manufacturing styles of an electronic device
from the capacitor itself, draining energy and stressing the dielectric. Dielectric absorption occurs when a capacitor that has remained charged for a long
Capacitor_types
Measure of the electric polarizability of a dielectric material
probability of photon absorption, which is directly related to the imaginary part of the optical dielectric function ε(ω). The optical dielectric function is given
Permittivity
Electrically insulating substance able to be polarised by an applied electric field
Dielectric absorption Dielectric losses Dielectric strength Dielectric spectroscopy EIA Class 1 dielectric EIA Class 2 dielectric High-κ dielectric Low-κ
Dielectric
Type of capacitor
discharging, a phenomenon that is also called dielectric relaxation, "soakage" or "battery action". Dielectric absorption may be a problem in circuits using very
Aluminum electrolytic capacitor
Aluminum_electrolytic_capacitor
are about −50 degrees Celsius. Dielectric spectroscopy Differential optical absorption spectroscopy Hydroxyl ion absorption in optical fiber Water model
Electromagnetic absorption by water
Electromagnetic_absorption_by_water
Topics referred to by the same term
than electricity Dielectric absorption, the inability of a charged capacitor to completely discharge when briefly discharged Absorption (economics), the
Absorption
Solid conductive electrolyte
so that the hybrids achieve the same values as wet Al-e-caps. Dielectric absorption occurs when a capacitor that has remained charged for a long time
Polymer_capacitor
Electromagnetic measurement technique
Dielectric spectroscopy (which falls in a subcategory of the impedance spectroscopy) measures the dielectric properties of a medium as a function of frequency
Dielectric_spectroscopy
Physical process by which matter takes up a photon's energy and stores it
In physics, absorption of electromagnetic radiation is how matter (typically electrons bound in atoms) takes up a photon's energy—and so transforms electromagnetic
Absorption (electromagnetic radiation)
Absorption_(electromagnetic_radiation)
Mirror made of dielectric materials
mirror – Mirror that solely reflects light without absorption or transmission Rugate filter – Dielectric mirror that selectively reflects a particular wavelength
Dielectric_mirror
Heating using radio waves
Dielectric heating, also known as electronic heating, is the process in which a radio frequency (RF) alternating electric field, or radio wave or microwave
Dielectric_heating
Return of a perturbed system into equilibrium
It is important in dielectric spectroscopy. Very long relaxation times are responsible for dielectric absorption. The dielectric relaxation time is closely
Relaxation_(physics)
Board to support and connect electronic components
electrical (dielectric constant, loss tangent, dielectric breakdown voltage, leakage current, tracking resistance...), and others (e.g. moisture absorption). At
Printed_circuit_board
Uses of capacitors in daily life
shorted, as protection from potentially dangerous voltages due to dielectric absorption. Some old, large oil-filled capacitors contain polychlorinated biphenyls
Applications_of_capacitors
Physical structure guiding light waves
types of optical waveguides include optical fiber waveguides, transparent dielectric waveguides made of plastic and glass, liquid light guides, and liquid
Waveguide_(optics)
Antique electrical device that stores a high-voltage electric charge
length, can be obtained at intervals. This effect is caused by dielectric absorption. The Leyden jar is a high-voltage device; it is estimated that at
Leyden_jar
Electrical discharge between two electrodes separated by an insulating dielectric barrier
Dielectric-barrier discharge (DBD) is the electrical discharge between two electrodes separated by an insulating dielectric barrier. Originally called
Dielectric_barrier_discharge
Electronics component
cable's two conductors; the resulting losses are called "dielectric losses" or "dielectric absorption". Capacitance also occurs between the cable's conductors
Speaker_wire
Analog-to-digital converter that uses an op-amp integrator
need not be perfectly linear, it does need to be time-invariant. Dielectric absorption causes linearity errors. The basic design of the dual-slope integrating
Integrating_ADC
Type of electronic component
property called dielectric absorption, in which energy stored in the dielectric during use is released gradually over time through dielectric relaxation;
Bleeder_resistor
Incoherent light source
and it may regain part of its charge through a process called "dielectric absorption". In addition, some types of charging systems can be equally deadly
Flashtube
Electronic filter that is constructed with waveguide technology
absorbent material. Another, more compact, design of absorption filter uses resonators with a lossy dielectric. There are many applications of filters whose
Waveguide_filter
Cable used for electric power transmission at high voltage
to factory test standards, field results can be very reliable. Dielectric absorption, a hazard Electric power transmission High-voltage direct current
High-voltage_cable
Physical property of allowing light
which includes what are referred to as absorption centers. Many substances are selective in their absorption of white light frequencies. They absorb
Transparency_and_translucency
Measure of absorption of energy by humans
Specific absorption rate (SAR) is a measure of the rate at which energy is absorbed per unit mass by a human body when exposed to a radio frequency (RF)
Specific_absorption_rate
Shading technique based on a dielectric model of physics
the dielectric interface, as well as using Snell's law to determine the angle of refraction. In addition Beer's law is used to determine absorption of
Dielectric_Shader
Property of an object or substance that is impervious to light
radiative transfer, it describes the absorption and scattering of radiation in a medium, such as a plasma, dielectric, shielding material, glass, etc. An
Opacity
Geophysical method that uses radar pulses to image the subsurface
because the conductivity, imaginary part of the permittivity, and the dielectric absorption of ice are small at radio frequencies resulting in low loss tangent
Ground-penetrating_radar
Relaxation model
Cole, Kenneth Stewart; Cole, Robert Hugh (1941). "Dispersion and Absorption in Dielectrics I. Alternating Current Characteristics". Journal of Chemical Physics
Cole–Cole_equation
Theoretical model describing the optical response of bound charges
value of the dielectric function at infinite frequency, which can be used as an adjustable parameter to account for high frequency absorption mechanisms;
Lorentz_oscillator_model
Topics referred to by the same term
or simply "microwave", a kitchen appliance that cooks or heats food by dielectric heating Cosmic microwave background radiation (CMBR), a form of electromagnetic
Microwaves_(disambiguation)
Limit at which an optical material will be damaged by a laser
heating to either affect the material properties or induce thermal shock. Dielectric breakdown occurs in insulating materials whenever the electric field is
Laser_damage_threshold
State of extreme dryness or process of thorough drying
Removal of water is achieved by cryogenic condensation, absorption into glycols, and absorption onto desiccants such as silica gel. A desiccator is a heavy
Desiccation
Noise reduction system for recorded analog audio
charged and discharged with different impedances the capacitor's dielectric absorption can influence the capacitor's waveshape. [...] "JRC NJM13600/13700
CX_(noise_reduction)
Electron oscillations in a nanoparticle
of the nanoparticle. The plasmon frequency can be related to the metal dielectric constant. The enhancement falls off quickly with distance from the surface
Localized_surface_plasmon
Property in optics
Mathematical descriptions of opacity. Dielectric loss and non-zero DC conductivity in materials cause absorption. Good dielectric materials such as glass have
Refractive_index
Wavelength-selective optical filter
lighting. An interference filter consists of multiple thin layers of dielectric material having different refractive indices. There may also be metallic
Interference_filter
Software package implementing the Bethe–Salpeter equation
basis set. Its purpose is to calculate, ab initio, dielectric and optical properties, like absorption, reflectivity, refraction index, electron and X-ray
EXC_code
Attribute of a physical system or body or non-chemical property of a material
area boiling point brittleness capacitance color concentration density dielectric ductility distribution efficacy elasticity electric charge electrical
Physical_property
Physical phenomenon of electron resonance
that propagates in a direction parallel to the negative permittivity/dielectric material interface. Since the wave is on the boundary of the conductor
Surface_plasmon_resonance
molecules. It is an important element of theories of dielectric materials. The polarization of a dielectric material is a competition between torques due to
Rotational_Brownian_motion
Kitchen cooking appliance
food to rotate and produce thermal energy (heat) in a process known as dielectric heating. Microwave ovens heat food quickly and efficiently; the heating
Microwave_oven
Study involving matter and electromagnetic radiation
spectroscopy originated as the study of the wavelength dependence of the absorption by gas phase matter of visible light dispersed by a prism. Current applications
Spectroscopy
Light scattering by small particles
When the dielectric constant ϵ {\displaystyle \epsilon } of a certain region of volume V {\displaystyle V} is different from the average dielectric constant
Rayleigh_scattering
Electromagnetic waves that travel along an interface
polaritons (SPPs) are electromagnetic waves that travel along a metal–dielectric or metal–air interface, practically in the infrared or visible-frequency
Surface_plasmon_polariton
Family of polymers
315 °C Maximum operating temperature 260 °C Water absorption (ASTM) <0.03 % after 24 hours Dielectric constant (Dk) at 1MHz 2.1 Dissipation factor at 1MHz
Perfluoroalkoxy_alkane
Polymer
PTFE. Electrically, PTFE, FEP and PFA have identical dielectric constants, but FEP's dielectric strength is only surpassed by PFA. However, while PFA
Fluorinated ethylene propylene
Fluorinated_ethylene_propylene
Topics referred to by the same term
insertion of a device in a transmission line or optical fiber Dielectric loss, a dielectric material's inherent dissipation of electromagnetic energy Loss
Loss
Coating used on PCBs
Low dielectric constant Amorphous fluoropolymer Low dielectric constant High glass transition temperature Low surface energy Low water absorption Solvent
Conformal_coating
NEMA grade designation for glass-reinforced epoxy laminate material
laminate grade with good strength to weight ratios. With near zero water absorption, FR-4 is most commonly used as an electrical insulator possessing considerable
FR-4
Quasiparticle which is a bound state of an electron and an electron hole
propositions for optoelectronic devices. In materials with a relatively small dielectric constant, the Coulomb interaction between an electron and a hole may be
Exciton
Chemical compound
also extensively used in the production of capacitors, due to its high dielectric constant. Tantalum is extracted from its ores, typically tantalite and
Tantalum_pentoxide
Gem variety of the mineral corundum
polarization-dependent charge-transfer absorption involving nearby iron and titanium substitutions. Additional iron-related absorption can modify the hue and tone
Sapphire
nonlinearity) and the non-linear absorption coefficient Δα via the "closed" and "open" methods, respectively. As nonlinear absorption can affect the measurement
Z-scan_technique
Range 300-3000 GHz of the electromagnetic spectrum
was hypothesized to involve bremsstrahlung with absorption or energy density focusing during dielectric breakdown of a gas. In 2013, researchers at Georgia
Terahertz_radiation
Type of radio propagation
\epsilon _{r}} is the relative permittivity of the material (also known as dielectric constant) and has no units. If σ ≫ ω ϵ 0 ϵ r {\displaystyle \sigma \gg
Non-line-of-sight_propagation
Electromagnetic radiation with wavelengths from 1 m to 1 mm
frequency near 2.45 GHz (12 cm) through food, causing dielectric heating primarily by absorption of the energy in water. Microwave ovens became common
Microwave
because the conductivity, imaginary part of the permittivity, and the dielectric absorption of ice are small at radio frequencies resulting in low loss tangent
Radioglaciology
30–300 GHz range of the electromagnetic spectrum
atmosphere. Absorption increases with frequency until at the top end of the band the waves are attenuated to zero within a few meters. Absorption by humidity
Extremely_high_frequency
Instrument for measuring humidity
accuracy. Capacitive hygrometers measure the effect of humidity on the dielectric constant of a polymer or a metal oxide. When calibrated, their accuracy
Hygrometer
Polymer resin widely used in packaging
polystyrene are used in polystyrene film capacitors as it forms a very stable dielectric, but has largely fallen out of use in favor of polyester. Polystyrene
Polystyrene
Chemical compound – an oxide of copper with formula Cu2O
parameter-free model of absorption linewidth broadening by temperature could be established, allowing the corresponding absorption coefficient to be deduced
Copper(I)_oxide
Lithography using 13.5 nm UV light
nm DRAM cell integration: QPT and higher uniformed capacitor high-k dielectrics". techinsights.com. Roos, Gina (May 24, 2018). "Prices for DRAMs Continue
EUV_lithography
Change in optical absorption by a semiconductor when an electric field is applied
electro-absorption modulators that use a waveguide geometry to guide the optical carrier. The absorption coefficient is related to the dielectric constant
Franz–Keldysh_effect
Family of polymers
with power systems and telecommunications hardware. It can serve as a dielectric in high-stability capacitors. Commercial manufacture of polycarbonate
Polycarbonate
Type of solar cell
value is known as the surface plasmon resonance. The dielectric function for metals with low absorption can be defined as: ϵ = 1 − ω p 2 ω 2 + i γ ω {\displaystyle
Plasmonic_solar_cell
Substance dissolving a solute resulting in a solution
dielectric constant of the solvent provides a rough measure of a solvent's polarity. The strong polarity of water is indicated by its high dielectric
Solvent
Glass consisting of pure silica
> 1018 Ω·m Dielectric constant: 3.75 at 20 °C 1 MHz Dielectric loss factor: less than 0.0004 at 20 °C 1 MHz typically 6 × 10−5 at 10 GHz Dielectric strength:
Fused_quartz
Substances which absorb radio frequency energy
plane that they conceal. More elaborate Jaumann absorbers use series of dielectric surfaces that separate conductive sheets. The conductivity of those sheets
Radiation-absorbent_material
the accumulation charge at the burning interface of semiconductor and dielectric layer where the conduction channel forms. Unlike ultraviolet–visible spectroscopy
Charge modulation spectroscopy
Charge_modulation_spectroscopy
Object that reflects an image
are usually transparent, absorption losses are negligible. Unlike with metals, the reflectivity of the individual dielectric-coatings is a function of
Mirror
Ultraviolet light with a wavelength of 10–121nm
significantly higher, and has been marked by lower thermal ablation thresholds in dielectric materials. Certain wavelengths of EUV vary by as much as a factor of 50
Extreme_ultraviolet
Software packages using DDA
homogeneous dielectric host medium. The calculated quantities typically include the Mueller matrices, integral cross-sections (extinction, absorption, and scattering)
Discrete dipole approximation codes
Discrete_dipole_approximation_codes
Measure of positive and negative charges
EM Purcell; CR Pennypacker (1973). "Scattering and Absorption of Light by Nonspherical Dielectric Grains". Astrophysical Journal. 186: 705–714. Bibcode:1973ApJ
Electric_dipole_moment
Maximum theoretical efficiency of a solar cell
from the tail of the imaginary dielectric function below the optical gap depending on temperature. Since imaginary dielectric functions is, even though low
Shockley–Queisser_limit
Change in color of a solution with different solvents
substance is dissolved in a variety of solvents. In this context, the dielectric constant and hydrogen bonding capacity are the most important properties
Solvatochromism
In mathematics, the limiting absorption principle (LAP) is a concept from operator theory and scattering theory that consists of choosing the "correct"
Limiting_absorption_principle
Method of approximating the properties of a composite material
widely used formulae. Effective permittivity and permeability are averaged dielectric and magnetic characteristics of a microinhomogeneous medium. They both
Effective medium approximations
Effective_medium_approximations
Constant related to electromagnetic wave propagation in a medium
homogeneous dielectric medium, similar expressions apply, but with the wave impedance of the medium replacing Z0. The presence of the dielectric also modifies
Wave_impedance
Incoherent broad band cavity enhanced absorption spectroscopy (IBBCEAS), sometimes called broadband cavity enhanced extinction spectroscopy (IBBCEES),
Incoherent broad-band cavity-enhanced absorption spectroscopy
Incoherent_broad-band_cavity-enhanced_absorption_spectroscopy
Optical filter device
splitters. The parasitic absorption is relatively high compared to most of the dielectric polarizers though much lower than in absorptive polarizers. Electromagnetic
Polarizer
Data acquisition method for earth sciences
other hand, radar is sensitive to one more factor: dielectric constant. Since water has a high dielectric constant, it has high reflectivity and hence more
Remote_sensing_in_geology
Non-stick material
Resistance TABER > 15 mg - Coefficient of Friction ASTM D1894 .15 – .35 static Dielectric Strength ASTM D149 1400 volts/mil 55118 kV/m Use Temperature - −100 °F
Xylan_(coating)
Light-conducting fiber
spitting flames morphing into a bird." An optical fiber is a cylindrical dielectric waveguide (nonconducting waveguide) that transmits light along its axis
Optical_fiber
Coherent delocalized electron oscillations
materials where the real part of the dielectric function changes sign across the interface (e.g. a metal-dielectric interface, such as a metal sheet in
Surface_plasmon
American biophysicist (1900–1984)
PMID 373584. Cole, K. S.; Cole, R. H. (1941). "Dispersion and absorption in dielectrics". J. Chem. Phys. 9: 341–351. Cole, K.S.; Baker, R.F. (1941). "Longitudinal
Kenneth_Stewart_Cole
the forward signal; the backward signal sees the ferrite as an ordinary dielectric material (with little permeability, as the ferrite is already saturated
Isolator_(microwave)
Chemical compound
COC has unique electrical properties that resist dielectric breakdown and have a very low dielectric loss over time. Because of this COC is used in filter
Cyclic_olefin_copolymer
Distillate of petroleum
is used as a hydraulic fluid in hydraulic machinery and vehicles. The dielectric constant of mineral oil ranges from 2.3 at 50 °C (122 °F) to 2.1 at 200 °C
Mineral_oil
Scientific instruments
gravity. The trapped particles are usually micron-sized, or even smaller. Dielectric and absorbing particles can be trapped, too. Optical tweezers are used
Optical_tweezers
only work when there is no absorption in the system. A reflection of the incoming field (E) is transmitted at the dielectric boundary to give rE and tE
Stokes_relations
Interacting phenomenon between light and matter
appreciably small for any non-zero ΔE. In a linear optical system the dielectric polarization, P, responds linearly to the presence of an electric field
Parametric_process_(optics)
remains solid, such that the source acts as its own crucible. The strong absorption of light causes the laser-induced heat to be highly localized via the
Thermal_laser_epitaxy
Scattering of an electromagnetic plane wave by a sphere
independently developed the theory of electromagnetic plane wave scattering by a dielectric sphere. The formalism allows the calculation of the electric and magnetic
Mie_scattering
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