A spectral line is a weaker or stronger region in an otherwise uniform and continuous spectrum. It may result from emission or absorption of light in...

Spectral line shape or spectral line profile describes the form of an electromagnetic spectrum in the vicinity of a spectral line – a region of stronger...

Least-squares spectral analysis List of spectroscopists Metamerism (color) Operando spectroscopy Scattering theory Spectral line ratios Spectral power distribution...

A spectral color is a color that is evoked by monochromatic light, i.e. either a spectral line with a single wavelength or frequency of light in the visible...

intensity in an experiment can be challenging, the ratio of different spectral line intensities can be used to achieve information about the plasma, as...

The hydrogen line, 21 centimeter line, or H I line is a spectral line that is created by a change in the energy state of solitary, electrically neutral...

six million spectral lines and is maintained by the National Radio Astronomy Observatory (NRAO). The name is a portmanteau of "spectral line catalogue"...

i.e. they are composed of more than one wavelength of light. This spectral line broadening has many different causes. Emission spectroscopy is often...

deep-red visible spectral line of the hydrogen atom with a wavelength of 656.28 nm in air and 656.46 nm in vacuum. It is the first spectral line in the Balmer...

Lyman-alpha, typically denoted by Ly-α or Lyα, is a spectral line of hydrogen (or, more generally, of any one-electron atom) in the Lyman series. It is...

atomic physics, is one of a set of six named series describing the spectral line emissions of the hydrogen atom. The Balmer series is calculated using...

Line spectral pairs (LSP) or line spectral frequencies (LSF) are used to represent linear prediction coefficients (LPC) for transmission over a channel...

The equivalent width of a spectral line is a measure of the area of the line on a plot of intensity versus wavelength in relation to underlying continuum...

Spectral is a 2016 Hungarian-American military science fiction action film co-written and directed by Nic Mathieu. Written with Ian Fried & George Nolfi...

The Zeeman effect (Dutch: [ˈzeːmɑn]) is the splitting of a spectral line into several components in the presence of a static magnetic field. It is caused...

instruments: broadband continuum receivers and heterodyne detection spectral line receivers. Continuum emission is a tracer of star formation in other...

spectral bands refer to the electromagnetic emission of polyatomic systems, including condensed materials, large molecules, etc. Each spectral line corresponds...

Spectral imaging is imaging that uses multiple bands across the electromagnetic spectrum. While an ordinary camera captures light across three wavelength...

{1}{(2\tau _{c})^{-1}+i2\pi (\nu -\nu _{q})}}.} Each mode has a normalized spectral line shape per unit frequency interval given by γ ~ q ( ν ) = 1 τ c | E ~...

2019 by Ge and colleagues which utilizes the C IV emission line, an alternative spectral line to Hβ, using the same data reproduced by the earlier paper...

Free spectral range (FSR) is the spacing in optical frequency or wavelength between two successive reflected or transmitted optical intensity maxima or...

describes the equivalent width of a spectral line as a function of the column density of the material from which the spectral line is observed. The curve of growth...

current-densities produce narrow spectral-line emission, against a faint background of continuous radiation. Xenon has many spectral lines in the UV, blue, green...

proposed them in 1916. In physics, one thinks of a spectral line from two viewpoints. An emission line is formed when an atom or molecule makes a transition...

typically being black-body radiation and spectral band emission, with both spectral line emission and spectral line absorption playing smaller roles. In the...

and excimer lasers), each of which resonates and amplifies a single spectral line. Krypton fluoride also makes a useful laser medium. From 1960 to 1983...

state. This gives a stronger spectral line. However, there are other factors that influence the intensity of a spectral line, such as whether it is caused...

of this spectral line by Chandra and XMM-Newton failed to find such a line, and thus, there is debate about whether the spectral line is evidence of dark...

field. It is the electric-field analogue of the Zeeman effect, where a spectral line is split into several components due to the presence of the magnetic...

which they called "Ångström", based on the wavelength of a specific spectral line. It was only in 1960, when the metre was redefined in the same way,...