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Distance over which a wave's shape repeats
In physics and mathematics, wavelength or spatial period of a wave or periodic function is the distance over which the wave's shape repeats. In other words
Wavelength
Fiber-optic communications technology
In fiber-optic communications, wavelength-division multiplexing (WDM) is a technology which multiplexes a number of optical carrier signals onto a single
Wavelength-division multiplexing
Wavelength-division_multiplexing
Topics referred to by the same term
Look up wavelength in Wiktionary, the free dictionary. A wavelength is a property of a wave. Wavelength may also refer to: Wavelength (album), a 1978
Wavelength_(disambiguation)
Electromagnetic radiation humans can see
Visible light spans the visible spectrum and is usually defined as having wavelengths in the range of 400–700 nanometres (nm), corresponding to frequencies
Light
Portion of the electromagnetic spectrum that is visible to the human eye
mix of multiple wavelengths. Colors containing only one wavelength are also called pure colors or spectral colors. Visible wavelengths pass largely unattenuated
Visible_spectrum
Range of frequencies or wavelengths of electromagnetic radiation
the full range of electromagnetic radiation, organized by frequency or wavelength. The spectrum is divided into separate bands, with different names for
Electromagnetic_spectrum
Length used in relativistic quantum physics
The Compton wavelength is defined as the wavelength of a photon whose energy is the same as the rest energy of that particle. The wavelength sets the minimum
Compton_wavelength
Form of electromagnetic radiation
sometimes called infrared light) is electromagnetic radiation (EMR) with wavelengths longer than that of visible light but shorter than microwaves. The infrared
Infrared
Any monochromatic spectral light that evokes the corresponding perception of hue
wavelength is a method of approximating a color's hue. Along with purity, it makes up one half of the Helmholtz coordinates. The dominant wavelength of
Dominant_wavelength
Party game published in 2019
Wavelength is a party game designed by Alex Hague, Justin Vickers, and Wolfgang Warsch and published in 2019 by CMYK following a successful Kickstarter
Wavelength_(game)
Quantum mechanical waves describing matter
matter waves are also known as de Broglie waves. The de Broglie wavelength is the wavelength, λ, associated with a particle with momentum p through the Planck
Matter_wave
1978 album by Van Morrison
Wavelength Van Morrison, Wavelength (1978) Kingdom Hall Van Morrison, Wavelength (1978) Natalia Van Morrison, Wavelength (1978) Problems playing these
Wavelength_(album)
Physical quantity of ideal and quantum gases
In physics, the thermal de Broglie wavelength ( λ th {\displaystyle \lambda _{\text{th}}} , sometimes also denoted by Λ {\displaystyle \Lambda } ) is a
Thermal_de_Broglie_wavelength
Property in optics
wavelength of the radiation are reduced with respect to their vacuum values: the speed of light in a medium is v = c/n, and similarly the wavelength in
Refractive_index
Relation between peak wavelengths of black body radiation and temperature
black-body radiation curve for different temperatures will peak at different wavelengths that are inversely proportional to the temperature. The shift of that
Wien's_displacement_law
Charitable organisation in the United Kingdom
WaveLength, previously known as Wireless for the Bedridden Society and W4B, is a charitable organisation in the United Kingdom, set up to work with people
WaveLength
Form of electromagnetic radiation
electromagnetic radiation of wavelengths of 100–400 nanometers, shorter than that of visible light, but longer than X-rays. Wavelengths between 10 and 100 nanometers
Ultraviolet
1967 experimental film by Michael Snow
Wavelength is a 1967 experimental film by Canadian artist Michael Snow. Shot from a fixed camera angle, it depicts a loft space with an extended zoom over
Wavelength_(1967_film)
Perception caused by wavelengths of light
absorption, emission, reflection and transmission. For most humans, visible wavelengths of light are the ones perceived in the visible light spectrum, with three
Color
Electromagnetic spectrum, 3 Hz – 3000 GHz
efficiently increases in proportion to wavelength or inversely with frequency. Below about 10 kHz (a wavelength of 30 km), elevated wire antennas kilometers
Radio_spectrum
In a single-mode optical fiber, the zero-dispersion wavelength is the wavelength or wavelengths at which material dispersion and waveguide dispersion
Zero-dispersion_wavelength
A wavelength shifter is a photofluorescent material that absorbs higher frequency photons and emits lower frequency photons. The material absorbs one photon
Wavelength_shifter
Single-wavelength anomalous diffraction (SAD) is a technique used in X-ray crystallography that facilitates the determination of the structure of proteins
Single-wavelength anomalous diffraction
Single-wavelength_anomalous_diffraction
American film production company
Wavelength is an American independent film production company founded in 2015, by Jenifer Westphal. The company has produced Won't You Be My Neighbor?
Wavelength_(company)
The magic wavelength (also known as a related quantity, magic frequency) is the wavelength of an optical lattice where the polarizabilities of two atomic
Magic_wavelength
Measure of radiant energy over time
flux per unit frequency or wavelength, depending on whether the spectrum is taken as a function of frequency or of wavelength. The SI unit of radiant flux
Radiant_flux
Light scattering by small particles
electromagnetic radiation, by particles with a size much smaller than the wavelength of the radiation. For light frequencies well below the resonance frequency
Rayleigh_scattering
Type of optical signal
In the context of wavelength-division multiplexing, an alien wavelength is a "colored" optical signal that is originated from equipment not under the
Alien_wavelength
1983 film by Mike Gray
Wavelength is a 1983 science fiction film written and directed by Mike Gray and starring Robert Carradine, Cherie Currie, and Keenan Wynn. Bobby Sinclaire
Wavelength_(1983_film)
Scattering of photons off charged particles
the photon's energy is reduced, and thus its wavelength is increased. This trade-off between wavelength and energy in response to the collision is the
Compton_scattering
Technology used to provide broadband to the end consumer via fiber
The downstream wavelength plan support simultaneous operation of 10 Gbit/s on one wavelength and 1 Gbit/s on a separate wavelength for the operation
Passive_optical_network
Device that emits light via optical amplification
according to their wavelength in a vacuum. Most "single wavelength" lasers produce radiation in several modes with slightly different wavelengths. Although temporal
Laser
Physical constant in quantum mechanics
to the wavenumber of the associated matter wave (the reciprocal of its wavelength) multiplied by the Planck constant. The constant was postulated by Max
Planck_constant
Thermal electromagnetic radiation
radiation emitted is a continuous spectrum over all possible radiation wavelengths that depends only on the body's temperature. A perfectly-insulated enclosure
Black-body_radiation
Physical model of propagating energy
a broad spectrum, classified by frequency (inversely proportional to wavelength), ranging from radio waves, microwaves, infrared, visible light, ultraviolet
Electromagnetic_radiation
Spectral density of light emitted by a black body
frequencies (i.e. long wavelengths), Planck's law tends to the Rayleigh–Jeans law, while in the limit of high frequencies (i.e. small wavelengths) it tends to the
Planck's_law
Measure of radiant energy over surface area
surface per unit frequency or wavelength, depending on whether the spectrum is taken as a function of frequency or of wavelength. The two forms have different
Irradiance
Components used for routing signals between optical fibres on a per-wavelength basis
Wavelength selective switching components are used in WDM optical communications networks to route (switch) signals between optical fibres on a per-wavelength
Wavelength selective switching
Wavelength_selective_switching
Color between orange and green on the visible spectrum of light
orange on the spectrum of light. It is evoked by light with a dominant wavelength of roughly 575–585 nm. It is a primary color in subtractive color systems
Yellow
Type of electromagnetic radiation
frequencies and the longest wavelengths in the electromagnetic spectrum, typically with frequencies below 300 gigahertz (GHz) and wavelengths greater than 1 millimeter
Radio_wave
Range of spectroscopic analysis
complementary to fluorescence spectroscopy. Parameters of interest, besides the wavelength of measurement, are absorbance (A) or transmittance (%T) or reflectance
Ultraviolet–visible spectroscopy
Ultraviolet–visible_spectroscopy
Chemical analysis technique
Wavelength-dispersive X-ray spectroscopy (WDXS or WDS) is a non-destructive analysis technique used to obtain elemental information about a range of materials
Wavelength-dispersive X-ray spectroscopy
Wavelength-dispersive_X-ray_spectroscopy
Colour between violet and cyan on the visible spectrum of light
describes colours perceived by humans observing light with a dominant wavelength between approximately 450 and 495 nanometres. The clear daytime sky and
Blue
Additive primary color visible between cyan and yellow
295-350 different shades. It is evoked by light which has a dominant wavelength of roughly 495–570 nm. In subtractive color systems, used in painting
Green
Multi-wavelength anomalous diffraction (sometimes Multi-wavelength anomalous dispersion; abbreviated MAD) is a technique used in X-ray crystallography
Multi-wavelength anomalous diffraction
Multi-wavelength_anomalous_diffraction
1978 single by Van Morrison
"Wavelength" is the title song from the 1978 album by Northern Irish singer-songwriter Van Morrison. Released as a single in 1978, it climbed to number
Wavelength_(song)
Hertzian electromagnetic waves were the same phenomenon at different wavelengths led "Maxwellian" scientists such as John Perry, Frederick Thomas Trouton
History_of_radio
Change in wavelength of light
wavelength, or equivalently, a decrease in the frequency, of electromagnetic radiation (such as light). The opposite change, a decrease in wavelength
Redshift
Intensity of electromagnetic radiation
intensity per unit frequency or wavelength, depending on whether the spectrum is taken as a function of frequency or of wavelength. These are directional quantities
Radiant_intensity
one wavelength of light can affect the phase of another wavelength of light through the optical Kerr effect. When the optical power from a wavelength impacts
Cross-phase_modulation
Sinusoidal wave without any modulation
usually impractical to transmit signals with low frequencies due to larger wavelength than antenna size. The purpose of the carrier is usually either to transmit
Carrier_wave
Multiple publications exist under the name Wavelength. Wavelength is a worldwide surfing magazine published since 1981 by 10 Over Surf Ltd, based in Newquay
Wavelength_(magazine)
Music series
Wavelength is a music series and annual festival held in Toronto, Ontario, Canada. The project was founded in 2000 by Jonny Dovercourt, Duncan MacDonell
Wavelength Music Arts Projects
Wavelength_Music_Arts_Projects
Type of electromagnetic spectroscopy
the excitation wavelength (the wavelength of the incident light used to excite the fluorophore) is fixed and the detection wavelength varies (producing
Fluorescence_spectroscopy
Technique to analyze the infrared spectrum of matter
dispersive spectrometer, which measures intensity over a narrow range of wavelengths at a time. The term Fourier transform infrared spectroscopy originates
Fourier-transform infrared spectroscopy
Fourier-transform_infrared_spectroscopy
Electromagnetic radiation generated by the thermal motion of particles
are dependent on the wavelength of the radiation. Due to reciprocity, absorptivity and emissivity for any particular wavelength are equal at equilibrium
Thermal_radiation
Emission of light by a substance that has absorbed light
returns to a lower energy state. The emitted light may have a longer wavelength and, therefore, a lower photon energy than the absorbed radiation. For
Fluorescence
Frequency response boundary
antenna, the cutoff frequencies correspond to the lower and upper cutoff wavelengths. In electronics, cutoff frequency or corner frequency is the frequency
Cutoff_frequency
Hydrogen spectral series
ultraviolet Balmer lines with wavelengths shorter than 400 nm. The series continues with an infinite number of lines whose wavelengths asymptotically approach
Balmer_series
Dynamic disturbance in a medium or field
dielectric media (at wavelengths where they are considered transparent). Electromagnetic waves, as determined by their frequencies (or wavelengths), have more
Wave
Incident radiant energy per area
exposure per unit frequency or wavelength, depending on whether the spectrum is taken as a function of frequency or of wavelength. The SI unit of radiant exposure
Radiant_exposure
must be given a route and wavelength. The wavelength must be consistent for the entire path, unless the usage of wavelength converters is assumed. Two
Routing and wavelength assignment
Routing_and_wavelength_assignment
Wavelength switched optical network (WSON) is a type of telecommunications network. A WSON consists of two planes: the data and the control planes. The
Wavelength switched optical network
Wavelength_switched_optical_network
Device that transmits and receives radio waves
to achieve with antennas whose dimensions are much smaller than a half wavelength. The first antennas were built in 1886 by German physicist Heinrich Hertz
Antenna_(radio)
Measurement describing the power of an illumination
distribution (SPD) measurement describes the power per unit area per unit wavelength of an illumination (radiant exitance). More generally, the term spectral
Spectral_power_distribution
Type of distributed Bragg reflector constructed in a short segment of optical fiber
generates a wavelength-specific dielectric mirror. Hence a fiber Bragg grating can be used as an inline optical filter to block certain wavelengths, can be
Fiber_Bragg_grating
Optical system with resolution performance at the instrument's theoretical limit
angular resolution, in radians, of an instrument is proportional to the wavelength of the light being observed, and inversely proportional to the diameter
Diffraction-limited_system
Optical device for selecting part of a spectrum
mechanically selectable narrow band of wavelengths of light or other radiation chosen from a wider range of wavelengths available at the input. The name is
Monochromator
Waves or particles moving through space
good example of this is sunburn caused by long-wavelength solar ultraviolet. The waves of longer wavelength than UV in visible light, infrared, and microwave
Radiation
Use of radio waves for communication
and proposed that light consisted of electromagnetic waves of short wavelength. On 11 November 1886, German physicist Heinrich Hertz, attempting to confirm
Radio
Instrument for measuring chemical composition
wavelength is selected, and the emission is observed either at a single wavelength, or a scan is performed to record the intensity versus wavelength,
Spectrofluorometer
Form of electromagnetic radiation
radiation with a wavelength shorter than those of ultraviolet rays and longer than those of gamma rays. Roughly, X-rays have a wavelength ranging from 10 nanometers
X-ray
An interferometer is a device for extracting information from the superposition of multiple waves. Air-wedge shearing interferometer Astronomical interferometer
List of types of interferometers
List_of_types_of_interferometers
Class of radio antenna
of the wavelength of the radio waves. It is said to be the most widely used antenna in the world. Monopoles shorter than one-quarter wavelength, called
Monopole_antenna
Speed of electromagnetic waves in vacuum
determination of wavelength becomes less precise with wavelength and the experiments were thus limited in precision by the long wavelength (~4 mm [0.16 in])
Speed_of_light
Physical law regarding scattering angles of radiation through a medium
fronts scattered by lattice planes leads to a strict relation between the wavelength and scattering angle. This law was initially formulated for X-rays, but
Bragg's_law
Color between indigo and ultraviolet on the electromagnetic spectrum
Violet is the color of light at the short wavelength end of the visible spectrum. It is one of the seven colors that Isaac Newton labeled when dividing
Violet_(color)
Photoreceptor cells responsible for color vision made to function in bright light
are sensitive to visible wavelengths of light that correspond to short-wavelength, medium-wavelength and longer-wavelength light respectively. Because
Cone_cell
Comparison of a wide range of lengths
420–440 nm – wavelength of indigo light 440–500 nm – wavelength of blue light 500–520 nm – wavelength of cyan light 520–565 nm – wavelength of green light
Orders_of_magnitude_(length)
Optical component which splits light into several beams
, parallel slits for a transmission grating) on the grating, and the wavelength of the incident light. Because the grating acts as a dispersive element
Diffraction_grating
Energy carried by a photon
proportional to the wavelength. The higher the photon's frequency, the higher its energy. Equivalently, the longer the photon's wavelength, the lower its energy
Photon_energy
ITU-T Recommendation
Speed PON (G.9804 series) was released intended as successors to NG-PON2. Wavelength allocations include 1524 nm to 1544 nm in the upstream direction and 1596 nm
NG-PON2
English soft rock band
Wavelength were a short-lived English soft rock band, active in the early 1980s. They are best known for their sole UK hit, "Hurry Home". The band were
Wavelength_(band)
Visual perception under low-light conditions
rod cells, which are most sensitive to wavelengths of around 498 nm (blue-green) and are insensitive to wavelengths longer than about 640 nm. Under scotopic
Scotopic_vision
Instrument used in astronomy
Sun at a single wavelength of light, a monochromatic image. The wavelength is usually chosen to coincide with a spectral wavelength of one of the chemical
Spectroheliograph
Electromagnetic radiation with wavelengths from 1 m to 1 mm
electromagnetic radiation with wavelengths shorter than other radio waves but longer than infrared waves. Its wavelength ranges from about one meter to
Microwave
Color that cannot be perceived under ordinary viewing conditions
curve of medium-wavelength (M) cone cells overlaps those of short-wavelength (S) and long-wavelength (L) cone cells. Light of any wavelength that interacts
Impossible_color
Power-weighted mean wavelength
The centroid wavelength is the power-weighted mean wavelength: λ c = 1 P total ∫ p ( λ ) λ d λ , {\displaystyle \lambda _{\text{c}}={\frac {1}{P_{\text{total}}}}\int
Centroid_wavelength
Measurement of strength of sunburn-producing ultraviolet (UV) radiation
directly proportional to the intensity of UV radiation, and adjusting for wavelength based on what causes human skin to sunburn. The purpose of the UV index
Ultraviolet_index
Type of diffraction grating
condition can only exactly be achieved for one wavelength, it is specified for which blaze wavelength the grating is optimized (or blazed). The direction
Blazed_grating
Effect of a material on light
thus n = n(f), or alternatively, with respect to the wave's wavelength n = n(λ). The wavelength dependence of a material's refractive index is usually quantified
Dispersion_(optics)
Law of wavelength-specific emission and absorption
In heat transfer, Kirchhoff's law of thermal radiation refers to wavelength-specific radiative emission and absorption by a material body in thermodynamic
Kirchhoff's law of thermal radiation
Kirchhoff's_law_of_thermal_radiation
Optical phenomenon
thin film interfere with one another, increasing reflection at some wavelengths and decreasing it at others. When white light is incident on a thin film
Thin-film_interference
Unit of length
structures, and lengths of chemical bonds, arrangement of atoms in crystals, wavelengths of electromagnetic radiation, and dimensions of integrated circuit parts
Angstrom
Process in microfabrication
lithography, extreme ultraviolet lithography (EUVL), and X-ray lithography. The wavelength of light used determines the minimum feature size that can be formed in
Photolithography
Approximation of a black body's spectral radiance
radiation as a function of wavelength from a black body at a given temperature through classical arguments. For wavelength λ, it is B λ ( T ) = 2 c k
Rayleigh–Jeans_law
Number of occurrences or cycles per unit time
{\mathrm {d} \theta }{\mathrm {d} x}}=k=2\pi \xi .} Spatial period or wavelength is the spatial analog to temporal period. For periodic waves in nondispersive
Frequency
Surface waves generated by wind on open water
gravity, wavelength, and water depth. Most characteristics of ocean waves depend on the relationship between their wavelength and water depth. Wavelength determines
Wind_wave
Chemical compound
used as a wavelength shifter (also called a "secondary scintillator"), which means that it converts shorter wavelength light to longer wavelength light.
POPOP
Law of physics
short-wavelength (high-frequency) spectrum of thermal emission from objects, but it fails to accurately fit the experimental data for long-wavelength (low-frequency)
Wien_approximation
WAVELENGTH
WAVELENGTH
WAVELENGTH
WAVELENGTH
Girl/Female
American, Australian
Combination Name
Girl/Female
Tamil
Dakshayajñavinaashini | தகà¯à®·à®¾à®¯à®œà¯à®žà®…விநாஷீநீ
Interrupter of the sacrifice of Daksha
Girl/Female
Hindu
Beautiful girl, Beautiful woman, Pretty
Boy/Male
Hindu, Indian, Marathi
Lord Ram
Biblical
who gathers together
Boy/Male
Hindu
The Sun
Girl/Female
Hindu, Indian, Marathi
Knowledge
Girl/Female
Indian, Punjabi, Sikh
Gift
Surname or Lastname
English
English : variant of Cornish, from Old French corneis.Americanized form of Dutch Korns.
Girl/Female
Australian, German, Hawaiian, Hebrew
Sweet-natured; Cypress Tree; Pleasantness; Delightful; Favorable
WAVELENGTH
WAVELENGTH
WAVELENGTH
WAVELENGTH
WAVELENGTH