## Glass, Volume 1 |

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Page 116

bleaching, if it is present, occurs by the optical stimulation of a

an allowed band followed by recombination of the free carrier with a

carrier of opposite sign. By contrast, thermal bleaching never involves free

carriers.

bleaching, if it is present, occurs by the optical stimulation of a

**trapped**carrier toan allowed band followed by recombination of the free carrier with a

**trapped**carrier of opposite sign. By contrast, thermal bleaching never involves free

carriers.

Page 117

The Generating Function The diffusion equation to be considered is ^ = DV2p + G

(I, t, q) + R(t, q) (8) R(t, q) represents the recombination of

i.e., ...

The Generating Function The diffusion equation to be considered is ^ = DV2p + G

(I, t, q) + R(t, q) (8) R(t, q) represents the recombination of

**trapped**holes and**trapped**electrons and is, of course, a function of the separation between them;i.e., ...

Page 118

where A0 is the initial number of cuprous ions, and Jp dv is the general

expression for the number of cupric ions formed (also the number of

electrons). For convenience, one can separate out explicitly the coordinate

dependence of ...

where A0 is the initial number of cuprous ions, and Jp dv is the general

expression for the number of cupric ions formed (also the number of

**trapped**electrons). For convenience, one can separate out explicitly the coordinate

dependence of ...

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### Contents

Optical Absorption of Glasses | 7 |

Solid Solution Strengthening of FaceCentered Cubic Alloys | 8 |

Visible Absorption | 35 |

Copyright | |

46 other sections not shown

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### Common terms and phrases

absorption band Absorption spectrum alkali anisotropic annealing Araujo atoms binary birefringence bleaching bond borate glasses boron borosilicate glass Bray Brillouin Brillouin scattering calculations Ceram chalcogenide glasses Chem chloride coefficient colloid color composition concentration fluctuations coordination crystal crystalline cupric ion darkening density fluctuations dielectric constant dielectric relaxation diffusion distribution effect electron energy equilibrium experimental fade rate frequency frozen-in strain function glass systems glasses containing Griscom heat treatment increase indicated intensity irradiated Landau-Placzek ratio light scattering magnetic materials measured mole Mossbauer negative birefringence observed octahedral octahedral symmetry optical oxide glasses oxygen paramagnetic parameters particles phase separation phonons phosphate glasses photochromic photochromic glasses Phys polarization positive birefringence Raman Rayleigh relaxation resonance sample Schroeder shift shown in Fig silicate glasses silver halide sodium Solids spectra spectrum spin-lattice relaxation spinodal stretching structural studied Takamori Taylor temperature thermal tion Tomozawa transition trapped ultraviolet unpublished results vibrational viscosity wavelengths