blue shift

(redirected from Blue-shift)
Also found in: Encyclopedia.

blue shift

n.
A decrease in the wavelength of radiation emitted by an approaching celestial body as a consequence of the Doppler effect.

[From the fact that the shorter wavelengths of light are at the blue end of the visible spectrum.]

blue shift

A decrease in the wavelength of radiation emitted by an approaching celestial body as a result of the Doppler effect. Objects appear bluish because the shorter wavelengths of light are at the blue end of the visible spectrum. Compare red shift.
Mentioned in ?
References in periodicals archive ?
When the size of titanatesamples decrease, the UV-Vis spectra are blue-shift.
Two short communications review fractional conductance in metallic nanowires, and red- and blue-shift of UV luminescence of ZnO nanowires.
The greater the pressure, the greater the blue-shift in the colours, which is easily perceived by eye, so that it can be used as a stand-alone, interactive authentication feature.
The blue-shift of the absorption onset indicates that this sample and other CdS clusters are quantum-confined due to decreasing particle size[42].
In addition, a similar blue-shift in Figure 4 is also seen and the extent of shift is smaller than that in Figure 5.
The solar-system-astrometric-anomalies [1, 2] are indicated here to arise due to the blue-shift caused by the cumulative-phase-alteration-mechanism proposed here.
The work has direct implications for cosmology and shows in particular that the erratic changes between red- and blue-shift directions in the early universe were in fact chaotic.
Although there are still many outstanding questions regarding the characterization of blue-shifting hydrogen bonds [25], it is of great importance that an investigation and debate be conducted as to whether there are red-shift and blue-shift modes on the C--H bonds in both HC[F.
For the 1st bandgap (around f = 1), there are no gap center modulations; the left and right "bandedge islands" appear and blue-shift slightly as N increases.
In comparison with the local case, the introduction of the nonlocal term results in both the slight decrease in the magnitudes of two SERS enhanced peaks and the blue-shift of the resonant wavelengths, which are consistent with observations on SERS from a dielectric core-silver shell coated nanoparticle [33].