3. Absorption and emission transitions of active centers
The energy level diagram of the active ion is shown in figure 3 . The spectral transitions observed in the emission spectrum are drawn by vertical downward arrows. The wavelength λ in nanometers of the light wave (λ = c/ν) and the wavenumber σ = 1/λ are associated with the photon of energy hν by :
with :
- h :
- Planck's constant (h = 6.62 × 10 ...
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Absorption and emission transitions of active centers
Energy level population
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Bibliography
- (1) - Les Lasers et Leurs Applications Scientifiques et Médicales - Édition C. Fabre et J. P. Pocholle, Les Éditions de Physique (Paris) (1996). 1.1 C. FABRE, Les Lasers – Principes Fondamentaux, pp. 1-40. 1.2 G. BOULON, Matériaux pour Lasers à Solide, pp. 259-286. 1.3. H. MONERIE, Fibres optiques dopées et applications, - pp. 357-382....
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