Second, the emission spectrum of the same lamp " shining through the sample " is measured ( this is called the " sample spectrum " ).
42.
:: : : : For those who are interested, our article on sodium vapor lamps has a pretty picture of the low-pressure sodium emission spectrum.
43.
For example, the emission spectrum of a gas-discharge lamp can be altered by filling it with ( mixtures of ) gases with different electronic energy level configurations.
44.
"' Homogeneous broadening "'is a type of emission spectrum broadening in which all atoms radiating from a specific level under consideration radiate with equal opportunity.
45.
Contrary to the existing carbon-filament lamps, Nernst lamp could operate in air and was twice more efficient as its emission spectrum was closer to that of daylight.
46.
His name is remembered for the discovery ( made independently by Johannes Stark ) in 1913 of the effect on an electric field on the emission spectrum of a gas.
47.
On the contrary, for incandescent lamps the light-current curve is not linear, and the emission spectrum varies with temperature, and thus with the input current.
48.
In 1967, a specific frequency from the emission spectrum of caesium-133 was chosen to be used in the definition of the second by the International System of Units.
49.
When it binds to beta sheet-rich structures, such as those in amyloid aggregates, the dye displays enhanced fluorescence and a characteristic red shift of its emission spectrum.
50.
A ) Facet feedback and wavelength resonances in the optical emission spectrum of a multimode Fabry-Perot laser; b ) power spectral density of a superluminescent light emitting diode.
