The most obvious difficulty appears to be the spectral distribution of the energy, which compatibility with Lorentz invariance requires to take the form Kf 3, where K is a constant and f denotes frequency.
32.
The differences will depend on the type of insertion device ( which, in turn, determines the intensity and spectral distribution of the radiation ); the beam conditioning equipment; and the experimental end station.
33.
With the direction of light propagation in the LC layer also the state of polarization of the light changes, and, as a consequence, the intensity and the spectral distribution of transmitted light changes too.
34.
The formula for spectral distribution of synchrotron radiation, given above, can be expressed in terms of a rapidly converging integral with no special functions involved ( see also modified Bessel functions ) by means of the relation:
35.
The spectral distribution of the noise term in the photocurrent can be measured by means of an electrical spectrum analyzer over a radio frequency ( RF ) range that is limited by the electrical bandwidth of the detector used.
36.
Nevertheless, in a manner of speaking, this formula means that the shape of the spectral distribution is independent of temperature, according to Wien's displacement law, as detailed below in the sub-section Properties.
37.
It has been noted that there is considerable misunderstanding over the effect of light quality on plant growth and many manufacturers claim significantly increased plant growth due to light quality ( spectral distribution or the ratio of the colors ).
38.
In audio systems and broadcasting specific methods are used to obtain subjectively valid results in order that different devices and signal paths may be compared regardless of the differing spectral distribution and temporal properties of the noise that they generate.
39.
By careful selection of which electron energy level transitions are used, and fluorescent coatings which modify the spectral distribution, the spectrum emitted can be tuned to mimic the appearance of incandescent sources, or other different color temperatures of white light.
40.
D . B . Judd, D . L . MacAdam, G . Wyszecki, Spectral distribution of typical daylight as a function of correlated color temperature, Journal of the Optical Society of America 54 ( 1964 ) 1031-1040.
