2.7. Mode locking , 2.8. Parametric effects in lasers, 3. Properties of resonant cavities . 3.1. Methods of attack . 3.2. Diffraction treatment , 3.3. Diffraction treatment for uniaxial anisotropic media 3.4. Waveguide treatment . 3.5. Modes in systems with output coupling holes 3.6. Modes in systems with gain saturation . 3.7. Unstable resonators . 3.8. Influence of intensity-dependent anomalous dispersion 4.1. The helium-neon system . 4.2. Ion lasers . 4.3. Molecular lasers . 4.4. Other gas lasers . 5. Raman and Brillouin lasers . 5.1. Theory of stimulated Raman scattering 5.2. Raman laser materials . 5.3. Raman shift in polar crystals 6.1. Energy levels in optical solids 6.2. Spontaneous emission in optical solids 6.3. Laser transitions . 7. Losses within solid laser materials 7.1. Loss measurements , 8. Doped-crystal systems. . 8.1. The trivalent rare earths . 8.2. The divalent rare earths . 8.3. The actinides . 8.4. Transition ions , 9. Energy transfer processes . .