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Fraction of optical power diffracted by an optical element
In optics, diffraction efficiency is the performance of diffractive optical elements – especially diffraction gratings – in terms of power throughput.
Diffraction_efficiency
Optical component which splits light into several beams
Diffraction efficiency Diffraction from slits Diffraction spike Diffractive solar sail Echelle grating Fraunhofer diffraction Fraunhofer diffraction (mathematics)
Diffraction_grating
transducer). Ratio between the diffracted intensity and the input one represents the diffraction efficiency. Maximum diffraction efficiency is limited by nonlinear
Acousto-optic programmable dispersive filter
Acousto-optic_programmable_dispersive_filter
Device which diffracts light via sound waves
beam. Diffraction from a sinusoidal modulation in a thin crystal mostly results in the m = −1, 0, +1 diffraction orders. Cascaded diffraction in medium
Acousto-optic_modulator
Data storage technology
extent of refractive index modulation produced per unit of exposure. Diffraction efficiency is proportional to the square of the index modulation times the
Holographic_data_storage
Optical system with resolution performance at the instrument's theoretical limit
limit to its resolution due to the physics of diffraction. An optical instrument is said to be diffraction-limited if it has reached this limit of resolution
Diffraction-limited_system
Degree to which a process minimizes waste of resources
a photosensitive device Grating efficiency, a generalization of the reflectance of a mirror, extended to a diffraction grating Productivity improving technologies
Efficiency
Recording to reproduce a three-dimensional light field
to understand interference and diffraction. Interference occurs when one or more wavefronts are superimposed. Diffraction occurs when a wavefront encounters
Holography
Phenomenon in optics
coupling element, which will couple the light out. The larger the diffraction efficiency of the grating, the larger percent of light that would be coupled
Guided-mode_resonance
a thin layer of holographic grating) has a low diffraction efficiency, causing light beams to diffract in various directions. Conversely, volume HOE types
Holographic_optical_element
Technique to investigate atomic structures using neutron scattering
to obtain a diffraction pattern that provides information of the structure of the material. The technique is similar to X-ray diffraction but, due to
Neutron_diffraction
Capacity of an object to reflect light
generalization of reflectance to a diffraction grating, which disperses light by wavelength, is called diffraction efficiency. Bidirectional reflectance distribution
Reflectance
Type of diffraction grating
ladder) – is a special type of diffraction grating. It is optimized to achieve maximum light efficiency in a given diffraction order. For this purpose, maximum
Blazed_grating
Ratio of energy extracted from sunlight in solar cells
Solar-cell efficiency is the portion of energy in sunlight that is converted into electricity by a solar cell. Efficiency, in combination with latitude
Solar-cell_efficiency
American forensic genealogist
AIAA Paper. 2002. "Comparison of Pulsed Versus CW Behavior of the Diffraction Efficiency of Bacteriorhodopsin Thin Films." Proceedings of SPIE – The International
Colleen_M._Fitzpatrick
Bending of electron beams due to electrostatic interactions with matter
overview of electron diffraction and electron diffraction patterns, collectively referred to by the generic name electron diffraction. This includes aspects
Electron_diffraction
their maximum diffraction efficiency, required power consumption, and resolution. Photorefractives have a high diffraction efficiency, an average-low
Organic photorefractive materials
Organic_photorefractive_materials
Type of diffraction grating used in spectrometers
for use at high incidence angles and therefore in high diffraction orders. Higher diffraction orders allow for increased dispersion (spacing) of spectral
Echelle_grating
Imaging and diffraction using electrons that pass through samples
strength of current to the intermediate lens, the diffraction pattern is projected on a screen. Diffraction is a very powerful tool for doing a cell reconstruction
Transmission electron microscopy
Transmission_electron_microscopy
scattering for optically soft spheres. The anomalous diffraction approximation for extinction efficiency is valid for optically soft particles and large size
Anomalous_diffraction_theory
Type of common-path interferometer
measurement resolution and efficiency. These include a diffraction grating interferometer by Kwon and the Phase-Shifting Point Diffraction Interferometer. Gary
Point diffraction interferometer
Point_diffraction_interferometer
Form of electron microscopy
scanning electron nano diffraction (SEND), nanobeam electron diffraction (NBED), or pixelated STEM. The use of diffraction patterns as a function of
4D scanning transmission electron microscopy
4D_scanning_transmission_electron_microscopy
Physical implementation of an artificial neural network with optical components
in Beijing is a hybrid ONN that combines the power efficiency and parallelism of optical diffraction and the configurability of optical interference. Taichi
Optical_neural_network
Device used to produce electricity from light
Heinemann, S.; Richardson, M. C. (6 June 2011). "Diffractive optical elements utilized for efficiency enhancement of photovoltaic modules". Optics Express
Solar_cell
Regions of an electromagnetic field
approaches the far field. Local effects Fraunhofer diffraction for more on the far field Fresnel diffraction for more on the near field Inductive heating of
Near_and_far_field
English physicist and musician (born 1968)
physics at the University of Manchester in 1998. His thesis, Double Diffraction Dissociation at Large Momentum Transfer, was supervised by Robin Marshall
Brian_Cox_(physicist)
Lensless computational imaging method
space images from diffraction patterns. The first idea was the realization by Sayre in 1952 that Bragg diffraction under-samples diffracted intensity relative
Coherent_diffraction_imaging
Particle data acquisition technique
X-ray diffraction computed tomography is an experimental technique that combines X-ray diffraction with the computed tomography data acquisition approach
X-ray diffraction computed tomography
X-ray_diffraction_computed_tomography
Loudspeaker using an acoustic horn
loudspeaker element which uses an acoustic horn to increase the overall efficiency of the driving element(s). A common form (right) consists of a compression
Horn_loudspeaker
Optical property
(Fresnel) regime, where the diffraction pattern evolves noticeably with propagation distance and the Fresnel diffraction (paraxial) integral is commonly
Fresnel_number
Shape and size of a digital camera's image sensor
resolution of all optical systems is limited by diffraction. One way of considering the effect that diffraction has on cameras using different sized sensors
Image_sensor_format
Scientific instruments
variety of technologies available for detecting and recording the images, diffraction patterns, and electron energy loss spectra produced using transmission
Detectors for transmission electron microscopy
Detectors_for_transmission_electron_microscopy
of glass to diffract rather than reflect or refract light. Concentric microscopic grooves etched into the plastic provide the diffraction. Glass transmits
Optical_membrane
Branch of physics that studies light
of situations such as diffraction through a single gap, diffraction through multiple slits, or diffraction through a diffraction grating that contains
Optics
photonics – Holography ISO 17901-1:2015 Part 1: Methods of measuring diffraction efficiency and associated optical characteristics of holograms ISO 17901-2:2015
List of ISO standards 16000–17999
List_of_ISO_standards_16000–17999
Optical device for selecting part of a spectrum
the phenomenon of optical dispersion in a prism, or that of diffraction using a diffraction grating, to spatially separate the colors of light. It usually
Monochromator
Topics referred to by the same term
measure of the agreement between the crystallographic model and the diffraction data R0 or R number, the basic reproduction number in epidemiology In
R-value
Electrical transmission without physical connection
Rayleigh criterion or diffraction limit, used in standard radio frequency antenna design, which also applies to lasers. Airy's diffraction limit is also frequently
Wireless_power_transfer
Technique in fluorescence microscopy
methods use mathematical models to reconstruct a sub diffraction limit from many sets of diffraction limited images. In traditional microscopy, the resolution
STED_microscopy
Portion of the electromagnetic spectrum that is visible to the human eye
away from the observer. Astronomical spectroscopy uses high-dispersion diffraction gratings to observe spectra at very high spectral resolutions. English
Visible_spectrum
Diode that emits light from an organic compound
in the pulsed regime, has been demonstrated. The emission is nearly diffraction limited with a spectral width similar to that of broadband dye lasers
OLED
Electron microscopy technique
high maximum diffraction angle allows for good separation between Bragg and Rutherford scattered electrons, therefore the maximum diffraction angle of the
Annular_dark-field_imaging
Form of electric spacecraft propulsion
overall efficiency drops because ionization takes up a larger percentage energy and at the high end propulsive efficiency is reduced. Optimal efficiencies and
Ion_thruster
Non-diffractive wave
axisymmetric diffraction gratings, or by placing a narrow annular aperture in the far field. High order Bessel beams can be generated by spiral diffraction gratings
Bessel_beam
Electric light bulb with a resistively heated wire filament
longest-lasting light bulb in the world. Various lighting spectra as viewed in a diffraction grating. Upper left: fluorescent lamp, upper right: incandescent bulb
Incandescent_light_bulb
Study of interactions between sound and light
diffracted by an acoustic wave of a single frequency produces two distinct diffraction types. These are Raman–Nath diffraction and Bragg diffraction.
Acousto-optics
Use of radio waves for communication
showed that radio waves like light demonstrated reflection, refraction, diffraction, polarization, standing waves, and traveled at the same speed as light
Radio
Algorithmic imaging methods that reconstruct quantitative phase and amplitude
microscopy refers to imaging modalities in which raw measurements (often diffraction patterns or image stacks under diverse illuminations) are transformed
Computational_microscopy
Lithography using 13.5 nm UV light
7271, 72711E (2009). "Double Diffraction Model of EUV Masks". 26 September 2021 – via www.youtube.com. "Double Diffraction in EUV Masks: Seeing Through
Extreme ultraviolet lithography
Extreme_ultraviolet_lithography
layered materials. Photothermal diffraction, a type of four wave mixing, monitors the effect of transient diffraction gratings "written" into the sample
Photothermal_spectroscopy
wavelength used for recording. In this case diffraction of light from the hologram is possible only as Bragg diffraction, i.e., the light has to have the right
Volume_hologram
Machine that removes heat from a liquid coolant
beverage processing, paper and cement processing, vacuum systems, X-ray diffraction, power supplies and gas turbine power generation stations (see Turbine
Chiller
Alternative to silicon-based photovoltaics
and, in silicon-based tandem cells, to 34.85%, exceeding the maximum efficiency achieved in single-junction silicon solar cells. Perovskite solar cells
Perovskite_solar_cell
Characteristic of an optical system
systems in panels (a) and (d). The former corresponds to the ideal, diffraction-limited, imaging system with a circular pupil. Its transfer function
Optical_transfer_function
Technique to characterize materials using X-ray radiation
painstakingly produced numerous diamond-ruled glass diffraction gratings for their spectrometers. The law of diffraction of a crystal is called Bragg's law in their
X-ray_spectroscopy
Mathematical operation
The diffraction of light can be calculated using integral transforms. The Fresnel diffraction integral is used to find the near field diffraction pattern
Fractional_Fourier_transform
Scanning microscopy using thin samples and transmitted electrons
above). CBED differs from conventional electron diffraction in that CBED patterns consist of diffraction disks, rather than spots. The width of CBED disks
Scanning transmission electron microscopy
Scanning_transmission_electron_microscopy
Chinese-American physicist
scattering in electron diffraction and imaging. He published a textbook on Elastic and Inelastic Scattering in Electron Diffraction and Imaging (Plenum Press
Zhong_Lin_Wang
Branch of optics
deflected by an angle 2θ, producing a reflection spot in the diffraction pattern. X-ray diffraction is a form of elastic scattering in the forward direction;
X-ray_optics
atomic physics, a ridged mirror (or ridged atomic mirror, or Fresnel diffraction mirror) is a kind of atomic mirror, designed for the specular reflection
Ridged_mirror
Scattering of an electromagnetic plane wave by a sphere
in laser diffraction analysis to inspect the particle sizing effect. While early computers in the 1970s were only able to compute diffraction data with
Mie_scattering
American physicist (1848–1901)
American Physical Society. He is remembered for the high quality of the diffraction gratings he made and for the work he did with them on the solar spectrum
Henry_Augustus_Rowland
Concept of collecting solar power in outer space and distributing it to Earth
power over a distance of 1 mile (1.6 km) at 9.6% efficiency. The beam does spread out due to diffraction. At 2.45 GHz, a one km phased array transmitting
Space-based_solar_power
Measure of imaging quality in astronomy
{\displaystyle r_{0}} can achieve a resolution close to its theoretical best (the diffraction limit). However, for telescopes with apertures much larger than r 0 {\displaystyle
Fried_parameter
Small lens, generally with a diameter less than a millimetre
optical quality but sometimes unwanted effects arise due to optical diffraction at the small features. A typical microlens may be a single element with
Microlens
Function representing relative sizes of particles in a system
"halo" of diffracted light produced when a laser beam passes through a dispersion of particles in air or in a liquid. The angle of diffraction increases
Particle-size_distribution
British climate scientist
L. (2006). Diffractively produced Z bosons in the muon decay channel in pp collisions at √s=1.96 TeV, and the measurement of the efficiency of the DØ Run
Tamsin_Edwards
Type of rechargeable battery
they generally have higher specific energy, energy density, and energy efficiency and a longer cycle life and calendar life. In the three decades since
Lithium-ion_battery
perfect chiral mirror exhibits circular conversion dichroism with ideal efficiency. Chiral mirrors can be realized by placing a planar chiral metamaterial
Planar_chirality
Molecule that carries genetic information
of polyamines in solution. The first published reports of A-DNA X-ray diffraction patterns—and also B-DNA—used analyses based on Patterson functions that
DNA
arrays of holes, and establishing that the phenomenon is dominated by diffraction. EOT is expected to play an important role in the creation of components
Extraordinary optical transmission
Extraordinary_optical_transmission
Technique to analyze the infrared spectrum of matter
Measurements in the far infrared needed the development of accurately ruled diffraction gratings to replace the prisms as dispersing elements, since salt crystals
Fourier-transform infrared spectroscopy
Fourier-transform_infrared_spectroscopy
supersaturated solution) gave better diffraction patterns than dried crystals. Using pepsin, they were the first to discern the diffraction pattern of a wet, globular
Protein_crystallization
Converts an electrical audio signal into a corresponding sound
Since sound in this frequency range can easily bend around corners by diffraction, the speaker aperture does not have to face the audience, and subwoofers
Loudspeaker
Type of angular momentum in light
modify the phase of the light is with a diffraction grating. For an l = 0 {\displaystyle l=0} state, the diffraction grating would consist of parallel lines
Orbital angular momentum of light
Orbital_angular_momentum_of_light
Re-arrangement of viral components into solid crystal particles
lattice. Diffraction patterns depend on internal order within the crystal. High internal order with dense arrangements produce more extensive diffraction patterns
Virus_crystallisation
is the F / D {\displaystyle F/D} ratio, which determines the aperture efficiency. F {\displaystyle F} is the focal length and D {\displaystyle D} is the
Transmitarray_antenna
Uses of science and technology in photography
image whose quality is limited only by diffraction. Such a lens is said to be diffraction limited. The diffraction-limited optical spot size on the CCD
Science_of_photography
Semiconductor laser
wavelength-selective mirror is a periodically structured diffraction grating with high reflectivity. The diffraction grating is within a non-pumped, or passive, region
Laser_diode
Type of laser
radiation Applications of coherent X-ray radiation include coherent diffraction imaging, research into dense plasmas (not transparent to visible radiation)
X-ray_laser
Type of laboratory
example, characterizing of enzymes in biology, titration in chemistry, diffraction of light in physics, etc. - all of which may sometimes involve dealing
Wet_lab
Measure of lens speed
f-ratio, or f-stop, and it is key in determining the depth of field, diffraction, and exposure of a photograph. The f-number is dimensionless and is usually
F-number
Device that emits light via optical amplification
typically expressed through the output being a narrow beam, which is diffraction-limited. Laser beams can be focused to very tiny spots, achieving a very
Laser
Optical phenomenon
resembles a common Ronchi linear diffraction grating, save a "fork" dislocation. An incident laser beam creates a diffraction pattern with vortices whose topological
Optical_vortex
Chemical compound
(2023), "Feynman photon path integral calculations of optical reflection, diffraction, and scattering from conduction electrons," Nuclear Instruments and Methods
Gallium_arsenide
Tapered sound guide
between a sound source and free air. This has the effect of maximizing the efficiency with which sound waves from the particular source are transferred to the
Horn_(acoustic)
Rocket engine operation method
main advantage relative to other rocket engine power cycles is high fuel efficiency, measured through specific impulse, while its main disadvantage is engineering
Staged_combustion_cycle
Photodetector sensitive to infrared radiation
developed, including a variety of geometrical coupling configurations, diffraction gratings and mode confinement solutions. Incident light impinges vertically
Quantum_cascade_detector
Computer vision library
on the diffraction equations of optics. Metaphorically speaking, PAGE emulates the physics of birefringent (orientation-dependent) diffractive propagation
PhyCV
British physicist
Humphreys, Colin John (1969). Aspects of multiple beam electron diffraction and X-ray diffraction topography. jisc.ac.uk (PhD thesis). University of Cambridge
Colin_Humphreys
Scientific subjects
Optics is the study of light motions including reflection, refraction, diffraction, and interference. Acoustics is the branch of physics involving the study
Branches_of_physics
Semi-analytic method of computational electromagnetism
these smaller structures. RCWA is also used to improve diffractive structures for high efficiency solar cells. For the simulation of the whole solar cell
Rigorous coupled-wave analysis
Rigorous_coupled-wave_analysis
Chemical analysis technique
dispersive X-ray spectroscopy (WDS). WDS differs from EDS in that it uses the diffraction of X-rays on special crystals to separate its raw data into spectral
Energy-dispersive X-ray spectroscopy
Energy-dispersive_X-ray_spectroscopy
with the Keck laser guide star adaptive optics system, it can obtain diffraction-limited observations on extremely faint targets. OSIRIS was developed
OH-Suppressing Infrared Integral Field Spectrograph
OH-Suppressing_Infrared_Integral_Field_Spectrograph
American biochemist and Nobel laureate (born 1964)
Berkeley National Laboratory for her experiments with high powered x-ray diffraction. In 2009, she took a leave of absence from Berkeley to work at Genentech
Jennifer_Doudna
Analytical methodology in spectroscopy
mechanism and active site is crucial to creating catalysts with optimal efficiency and maximal product yield. In situ reactor cell designs typically are
Operando_spectroscopy
Instrument installed on the Hubble Space Telescope
single holographically ruled aspheric concave diffraction grating simultaneously focuses and diffracts the incoming light and corrects both for the HST
Cosmic_Origins_Spectrograph
Physical phenomenon
It is similar to reflection high-energy electron diffraction, where electrons reflect and diffraction from surfaces, and grazing incidence atom scattering
Quantum_reflection
Equipment using an organic dye to emit coherent light
triplet absorption and to decrease degradation of the dye. A prism or diffraction grating is usually mounted in the beam path, to allow tuning of the beam
Dye_laser
Species of flowering plant
which have been the subject of controversy about whether they act as a diffraction grating, creating iridescence. The pollinated but unripe seedpods look
Hibiscus_trionum
DIFFRACTION EFFICIENCY
DIFFRACTION EFFICIENCY
Girl/Female
Tamil
Dakshhtha | தகà¯à®·à®¾à®¹à®¤à®¾
Efficiency, Care
Dakshhtha | தகà¯à®·à®¾à®¹à®¤à®¾
Girl/Female
Indian
Efficiency, Care
DIFFRACTION EFFICIENCY
DIFFRACTION EFFICIENCY
Girl/Female
Biblical
Poor, afflicted, that answers.
Female
Finnish
Finnish form of Old German Walburg, VALPURI means "salvation of the slain in battle."
Surname or Lastname
English
English : nickname for someone thought to resemble a woodpecker in some way, Middle English spek(e) (a reduced form of Old French espeche(e), of Germanic origin).
Girl/Female
Muslim
Happy, Jolly, Pleasant
Female
Gypsy/Romani
Variant spelling of Romani Violca, probably VIOLLCA means "violet color" or "violet flower."
Boy/Male
Arthurian Legend
Brother of Isolde.
Girl/Female
Indian, Tamil
Flames Bright
Male
Polish
Polish form of Greek Maksimos, MAKSYM means "the greatest."
Girl/Female
Latin American Greek English
Majestic, grand. The feminine form of Augustus; meaning majestic dignity or venerable, originally...
Girl/Female
Australian, Spanish
God's Gift; A Saint's Name
DIFFRACTION EFFICIENCY
DIFFRACTION EFFICIENCY
DIFFRACTION EFFICIENCY
DIFFRACTION EFFICIENCY
DIFFRACTION EFFICIENCY
n.
That which diverts attention; a diversion.
n.
Agitation from violent emotions; perturbation of mind; despair.
a.
That produces diffraction.
n.
The act of distracting; a drawing apart; separation.
n.
Confusion of affairs; tumult; disorder; as, political distractions.
superl.
Proceeding from, or indicating, madness; expressing distraction; prompted by infatuation, fury, or extreme rashness.
n.
Same as Diffraction.
n.
A deviation of the rays of light toward the surface of an opaque body; inflection; diffraction.
n.
Violent distraction of mind; violent emotion; excessive grief of anxiety; insanity; madness.
n.
Derangement of the mind; madness.
n.
A blowing apart or away.
n.
State in which the attention is called in different ways; confusion; perplexity.
n.
A diversity of direction; detachment.
n.
A system of close equidistant and parallel lines lines or bars, especially lines ruled on a polished surface, used for producing spectra by diffraction; -- called also diffraction grating.
p. pr. & vb. n.
of Diffract
n.
One of a number of light or dark bands, produced by the interference of light; a diffraction band; -- called also interference fringe.
n.
The act of infracting or breaking; breach; violation; nonobservance; infringement; as, an infraction of a treaty, compact, rule, or law.
n.
Any violent agitation of the mind approaching to distraction; violent and temporary derangement of the mental faculties; madness; rage.
n.
The deflection and decomposition of light in passing by the edges of opaque bodies or through narrow slits, causing the appearance of parallel bands or fringes of prismatic colors, as by the action of a grating of fine lines or bars.
n.
A state of being distracted; distraction.