emission spectrum


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emission spectrum

n.
The spectrum of bright lines, bands, or continuous radiation characteristic of and determined by a specific emitting substance subjected to a specific kind of excitation.

emission spectrum

n
(General Physics) the continuous spectrum or pattern of bright lines or bands seen when the electromagnetic radiation emitted by a substance is passed into a spectrometer. The spectrum is characteristic of the emitting substance and the type of excitation to which it is subjected. Compare absorption spectrum

e·mis·sion spectrum

The pattern of dark lines and colors made when electromagnetic energy, such as light, passes through a substance and excites its atoms. The excited atoms give off energy in the form of light. Because each type of atom gives off light having a unique range of colors, the emission spectrum can be used to determine the substance's chemical composition.
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Noun1.emission spectrum - spectrum of electromagnetic radiation emitted by a self-luminous source
spectrum - an ordered array of the components of an emission or wave
References in periodicals archive ?
"Two pulses allows us to encode the absorption spectrum into the emission spectrum. Thus, in one measurement, we can record both the fluorescence and absorption spectrum of a single molecule," Hauer explained to Laboratory Equipment.
In addition, for determining the tunable photoluminescent properties of fibers, the emission spectrums of FPAEK (1.5 [micro]m) and FPAES (4 [micro]m) fibers which were excited at wavelength of shoulder peaking were investigated.
a) Fluorescence emission spectrum of chlorophyll a (1.0 x [10.sup.-5] mol.[L.sup.-1]) in DMSO and b) fluorescence emission spectrum of chlorophyll a (1.0 x [10.sup.-5] mol.[L.sup.-1]) in LUTROL[R] F127 polymeric micelles (2%).
Here, it can be said that new pin diode technology could make a scintillator more efficient compared to older photodetectors with unmatched scintillator emission spectrum at relatively lower wavelengths.
Therefore, the emission spectrum of normal breast tissue was performed.
To have a deep insight into the mechanism, we made plot between the absorbance spectrum of TNP and emission spectrum of B (Figure 5).
400 nm In film prepared by LVPVDM shows obvious well-defined ultraviolet and blue fluorescence, while block metal In lacks visible solid-state fluorescence, and the resulting fluorescence emission spectrum is shown in Figure 2, where 400 nm In film has two [[lambda].sub.em.sup.max] at 359 nm and 464nm.
Obviously, the concentration of [Eu.sup.3+] ions in this particular phosphor composition is not optimal for efficient energy transfer from [Eu.sup.2+] to [Eu.sup.3+] ion, and the emission spectrum does not show any red emission lines of [Eu.sup.3+] under near-UV or blue excitation.
"Cities must be encouraged and enabled to focus on their full emission spectrum - local and upstream- as they continue to develop their climate mitigation plans." ( ANI )
Observations made using NuSTAR suggest that the object's emission spectrum is very similar to known pulsars in the Milky Way.
The above results are consistent with the significant overlap of the emission spectrum of the green LEDs with the absorption spectra of the doped SSO film and with the spectral mismatch between LED emission and DMA absorption spectra.
Even in this case we can see a significant difference in the emission spectrum at active modem operation (Fig.

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