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Glossary terms about Excitation

The input of energy to matter leading to the emission of radiation.

5 pages mention Excitation

Components of the confocal microscope
The main drawback in using lasers is that to cover a large excitation range you will need several lasers. 
Fluorescence microscopy
Each fluorochrome has a specific set of spectra so that optimal excitation and detection can only be achieved within a small bandwidth of light wavelengths. 
Scanning and resolution
Sequential and simultaneous
However, when attempting to image multiple fluorescent probes in the same sample, it is essential that excitation laser wavelengths and emission filters are carefully chosen.